./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 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/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_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF --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-63182f1 [2021-11-12 23:43:30,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:43:30,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:43:30,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:43:30,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:43:30,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:43:30,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:43:30,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:43:30,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:43:30,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:43:30,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:43:30,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:43:30,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:43:30,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:43:30,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:43:30,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:43:30,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:43:30,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:43:30,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:43:30,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:43:30,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:43:30,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:43:30,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:43:30,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:43:30,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:43:30,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:43:30,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:43:30,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:43:30,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:43:30,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:43:30,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:43:30,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:43:30,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:43:30,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:43:30,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:43:30,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:43:30,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:43:30,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:43:30,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:43:30,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:43:30,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:43:30,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:43:30,737 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:43:30,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:43:30,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:43:30,739 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:43:30,739 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:43:30,740 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:43:30,740 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:43:30,740 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:43:30,746 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:43:30,746 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:43:30,747 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:43:30,747 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:43:30,748 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:43:30,748 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:43:30,748 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:43:30,748 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:43:30,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:43:30,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:43:30,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:43:30,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:43:30,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:43:30,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:43:30,751 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:43:30,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:43:30,751 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:43:30,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:43:30,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:43:30,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:43:30,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:43:30,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:43:30,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:43:30,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:43:30,754 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:43:30,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:43:30,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:43:30,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:43:30,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:43:30,755 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_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 [2021-11-12 23:43:31,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:43:31,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:43:31,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:43:31,078 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:43:31,079 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:43:31,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-11-12 23:43:31,148 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/data/cbb63680c/5051b51dc29e462eb023a313c38d6b86/FLAG52b079d2f [2021-11-12 23:43:32,103 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:43:32,104 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-11-12 23:43:32,147 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/data/cbb63680c/5051b51dc29e462eb023a313c38d6b86/FLAG52b079d2f [2021-11-12 23:43:32,531 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/data/cbb63680c/5051b51dc29e462eb023a313c38d6b86 [2021-11-12 23:43:32,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:43:32,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:43:32,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:43:32,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:43:32,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:43:32,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:43:32" (1/1) ... [2021-11-12 23:43:32,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae530f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:32, skipping insertion in model container [2021-11-12 23:43:32,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:43:32" (1/1) ... [2021-11-12 23:43:32,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:43:32,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:43:32,970 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4491,4504] [2021-11-12 23:43:32,976 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4551,4564] [2021-11-12 23:43:32,998 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:43:33,004 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:43:33,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:33,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:33,924 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:33,925 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:33,926 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:33,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:33,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:33,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:33,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:34,333 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:43:34,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:43:34,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:43:34,337 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:43:34,338 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:43:34,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:43:34,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:43:34,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:43:34,341 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:43:34,342 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:43:34,484 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:43:34,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:34,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:34,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:43:34,687 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) [2021-11-12 23:43:34,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@342575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:34, skipping insertion in model container [2021-11-12 23:43:34,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:43:34,690 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:43:34,694 INFO L158 Benchmark]: Toolchain (without parser) took 2153.94ms. Allocated memory was 115.3MB in the beginning and 148.9MB in the end (delta: 33.6MB). Free memory was 76.2MB in the beginning and 71.7MB in the end (delta: 4.6MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2021-11-12 23:43:34,694 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:43:34,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2150.87ms. Allocated memory was 115.3MB in the beginning and 148.9MB in the end (delta: 33.6MB). Free memory was 76.0MB in the beginning and 71.7MB in the end (delta: 4.3MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2021-11-12 23:43:34,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2150.87ms. Allocated memory was 115.3MB in the beginning and 148.9MB in the end (delta: 33.6MB). Free memory was 76.0MB in the beginning and 71.7MB in the end (delta: 4.3MB). Peak memory consumption was 40.4MB. 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_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/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_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF --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-63182f1 [2021-11-12 23:43:36,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:43:36,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:43:36,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:43:36,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:43:36,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:43:36,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:43:36,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:43:36,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:43:36,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:43:36,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:43:36,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:43:36,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:43:36,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:43:36,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:43:36,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:43:36,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:43:36,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:43:36,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:43:36,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:43:36,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:43:36,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:43:36,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:43:36,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:43:36,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:43:36,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:43:36,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:43:36,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:43:36,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:43:36,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:43:36,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:43:36,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:43:36,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:43:36,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:43:36,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:43:36,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:43:36,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:43:36,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:43:36,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:43:36,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:43:36,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:43:36,985 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:43:37,023 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:43:37,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:43:37,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:43:37,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:43:37,029 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:43:37,029 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:43:37,029 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:43:37,029 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:43:37,030 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:43:37,030 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:43:37,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:43:37,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:43:37,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:43:37,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:43:37,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:43:37,037 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:43:37,037 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:43:37,038 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:43:37,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:43:37,038 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:43:37,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:43:37,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:43:37,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:43:37,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:43:37,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:43:37,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:43:37,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:43:37,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:43:37,040 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:43:37,041 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:43:37,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:43:37,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:43:37,041 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:43:37,042 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_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 [2021-11-12 23:43:37,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:43:37,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:43:37,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:43:37,483 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:43:37,484 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:43:37,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-11-12 23:43:37,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/data/a2d1c4439/201f33422f234a0987da9810e5ae6cc3/FLAGae8cc89f4 [2021-11-12 23:43:38,482 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:43:38,483 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-11-12 23:43:38,526 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/data/a2d1c4439/201f33422f234a0987da9810e5ae6cc3/FLAGae8cc89f4 [2021-11-12 23:43:39,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/data/a2d1c4439/201f33422f234a0987da9810e5ae6cc3 [2021-11-12 23:43:39,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:43:39,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:43:39,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:43:39,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:43:39,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:43:39,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:43:39" (1/1) ... [2021-11-12 23:43:39,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de3929b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:39, skipping insertion in model container [2021-11-12 23:43:39,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:43:39" (1/1) ... [2021-11-12 23:43:39,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:43:39,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:43:39,454 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4491,4504] [2021-11-12 23:43:39,461 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4551,4564] [2021-11-12 23:43:39,485 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:43:39,491 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:43:40,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:40,494 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:40,494 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:40,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:40,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:40,521 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:40,524 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:40,526 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:40,528 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:40,927 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:43:40,928 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:43:40,929 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:43:40,930 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:43:40,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:43:40,948 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:43:40,948 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:43:40,949 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:43:40,949 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:43:40,949 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:43:41,091 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:43:41,171 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,171 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:43:41,307 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:43:41,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:43:41,384 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4491,4504] [2021-11-12 23:43:41,385 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4551,4564] [2021-11-12 23:43:41,386 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:43:41,387 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:43:41,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,422 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,450 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,450 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,486 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:43:41,486 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:43:41,487 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:43:41,488 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:43:41,489 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:43:41,489 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:43:41,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:43:41,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:43:41,491 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:43:41,491 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:43:41,512 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:43:41,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:43:41,647 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:43:41,660 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4491,4504] [2021-11-12 23:43:41,661 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4551,4564] [2021-11-12 23:43:41,663 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:43:41,663 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:43:41,696 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,696 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,696 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,697 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,703 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,738 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:43:41,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:43:41,740 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:43:41,740 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:43:41,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:43:41,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:43:41,742 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:43:41,742 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:43:41,743 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:43:41,743 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:43:41,763 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:43:41,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:43:41,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:43:42,279 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:43:42,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:42 WrapperNode [2021-11-12 23:43:42,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:43:42,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:43:42,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:43:42,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:43:42,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:42" (1/1) ... [2021-11-12 23:43:42,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:42" (1/1) ... [2021-11-12 23:43:42,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:43:42,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:43:42,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:43:42,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:43:42,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:42" (1/1) ... [2021-11-12 23:43:42,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:42" (1/1) ... [2021-11-12 23:43:42,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:42" (1/1) ... [2021-11-12 23:43:42,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:42" (1/1) ... [2021-11-12 23:43:42,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:42" (1/1) ... [2021-11-12 23:43:42,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:42" (1/1) ... [2021-11-12 23:43:42,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:42" (1/1) ... [2021-11-12 23:43:42,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:43:42,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:43:42,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:43:42,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:43:42,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:42" (1/1) ... [2021-11-12 23:43:42,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:43:42,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:43:42,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:43:42,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:43:42,701 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-12 23:43:42,701 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-12 23:43:42,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:43:42,701 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 23:43:42,701 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 23:43:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:43:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:43:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-12 23:43:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-12 23:43:42,703 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-12 23:43:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-12 23:43:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 23:43:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 23:43:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:43:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:43:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:43:42,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:43:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 23:43:42,705 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 23:43:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:43:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-12 23:43:42,705 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-12 23:43:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 23:43:42,706 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 23:43:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-11-12 23:43:42,706 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-11-12 23:43:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:43:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:43:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:43:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:43:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-12 23:43:42,707 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-12 23:43:58,136 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:43:58,137 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:43:58,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:43:58 BoogieIcfgContainer [2021-11-12 23:43:58,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:43:58,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:43:58,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:43:58,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:43:58,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:43:39" (1/3) ... [2021-11-12 23:43:58,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2281ba0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:43:58, skipping insertion in model container [2021-11-12 23:43:58,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:42" (2/3) ... [2021-11-12 23:43:58,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2281ba0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:43:58, skipping insertion in model container [2021-11-12 23:43:58,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:43:58" (3/3) ... [2021-11-12 23:43:58,147 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_init_harness.i [2021-11-12 23:43:58,152 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:43:58,152 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:43:58,202 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:43:58,208 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 [2021-11-12 23:43:58,209 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:43:58,227 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) [2021-11-12 23:43:58,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 23:43:58,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:58,234 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] [2021-11-12 23:43:58,235 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:43:58,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:58,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1013294361, now seen corresponding path program 1 times [2021-11-12 23:43:58,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:43:58,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247768395] [2021-11-12 23:43:58,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:58,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:43:58,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:43:58,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:43:58,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:44:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:02,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:44:02,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:02,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 23:44:02,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 23:44:02,775 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:02,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1247768395] [2021-11-12 23:44:02,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1247768395] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:02,776 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:02,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:44:02,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066131274] [2021-11-12 23:44:02,779 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:02,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:44:02,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:02,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:44:02,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:44:02,813 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) [2021-11-12 23:44:02,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:02,847 INFO L93 Difference]: Finished difference Result 193 states and 252 transitions. [2021-11-12 23:44:02,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:44:02,849 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 [2021-11-12 23:44:02,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:02,858 INFO L225 Difference]: With dead ends: 193 [2021-11-12 23:44:02,859 INFO L226 Difference]: Without dead ends: 93 [2021-11-12 23:44:02,863 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 [2021-11-12 23:44:02,866 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:02,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.73ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:44:02,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-12 23:44:02,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-12 23:44:02,909 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) [2021-11-12 23:44:02,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 114 transitions. [2021-11-12 23:44:02,914 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 114 transitions. Word has length 31 [2021-11-12 23:44:02,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:02,916 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 114 transitions. [2021-11-12 23:44:02,916 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) [2021-11-12 23:44:02,916 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 114 transitions. [2021-11-12 23:44:02,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 23:44:02,918 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:02,918 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] [2021-11-12 23:44:02,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 23:44:03,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:03,143 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:44:03,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:03,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1912179751, now seen corresponding path program 1 times [2021-11-12 23:44:03,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:03,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932673180] [2021-11-12 23:44:03,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:03,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:03,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:03,153 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:03,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:44:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:07,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:44:07,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:07,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:07,474 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:07,475 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:07,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932673180] [2021-11-12 23:44:07,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932673180] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:07,475 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:07,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:44:07,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381179087] [2021-11-12 23:44:07,476 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:07,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:44:07,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:07,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:44:07,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:44:07,478 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) [2021-11-12 23:44:09,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:44:11,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:44:12,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:12,289 INFO L93 Difference]: Finished difference Result 147 states and 189 transitions. [2021-11-12 23:44:12,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:44:12,310 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 [2021-11-12 23:44:12,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:12,312 INFO L225 Difference]: With dead ends: 147 [2021-11-12 23:44:12,313 INFO L226 Difference]: Without dead ends: 110 [2021-11-12 23:44:12,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:44:12,315 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 9 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4701.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.40ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4761.84ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:12,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 340 Invalid, 17 Unknown, 0 Unchecked, 5.40ms Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 4761.84ms Time] [2021-11-12 23:44:12,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-11-12 23:44:12,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 96. [2021-11-12 23:44:12,328 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) [2021-11-12 23:44:12,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2021-11-12 23:44:12,331 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 31 [2021-11-12 23:44:12,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:12,331 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2021-11-12 23:44:12,332 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) [2021-11-12 23:44:12,332 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2021-11-12 23:44:12,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 23:44:12,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:12,333 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] [2021-11-12 23:44:12,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:12,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:12,542 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:44:12,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:12,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2124622107, now seen corresponding path program 1 times [2021-11-12 23:44:12,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:12,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432035963] [2021-11-12 23:44:12,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:12,549 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:12,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:12,554 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:12,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:44:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:16,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:44:16,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:16,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:16,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:17,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:17,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:17,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432035963] [2021-11-12 23:44:17,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432035963] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:17,158 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:17,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-12 23:44:17,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878565501] [2021-11-12 23:44:17,159 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:17,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:44:17,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:17,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:44:17,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:44:17,160 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) [2021-11-12 23:44:19,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:44:21,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:44:21,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:21,409 INFO L93 Difference]: Finished difference Result 134 states and 166 transitions. [2021-11-12 23:44:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:44:21,410 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 [2021-11-12 23:44:21,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:21,412 INFO L225 Difference]: With dead ends: 134 [2021-11-12 23:44:21,412 INFO L226 Difference]: Without dead ends: 96 [2021-11-12 23:44:21,413 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 [2021-11-12 23:44:21,414 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 46 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4130.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.51ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4203.24ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:21,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 464 Invalid, 52 Unknown, 0 Unchecked, 4.51ms Time], IncrementalHoareTripleChecker [17 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 4203.24ms Time] [2021-11-12 23:44:21,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-12 23:44:21,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-12 23:44:21,426 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) [2021-11-12 23:44:21,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 116 transitions. [2021-11-12 23:44:21,428 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 116 transitions. Word has length 31 [2021-11-12 23:44:21,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:21,429 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 116 transitions. [2021-11-12 23:44:21,429 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) [2021-11-12 23:44:21,429 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 116 transitions. [2021-11-12 23:44:21,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-12 23:44:21,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:21,431 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] [2021-11-12 23:44:21,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:21,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:21,638 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:44:21,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:21,639 INFO L85 PathProgramCache]: Analyzing trace with hash 966724818, now seen corresponding path program 1 times [2021-11-12 23:44:21,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:21,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407939450] [2021-11-12 23:44:21,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:21,643 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:21,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:21,644 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:21,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:44:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:25,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:44:25,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:25,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:25,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:25,798 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:25,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407939450] [2021-11-12 23:44:25,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407939450] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:25,799 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:25,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:44:25,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004891618] [2021-11-12 23:44:25,799 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:25,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:44:25,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:25,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:44:25,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:44:25,801 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) [2021-11-12 23:44:25,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:25,876 INFO L93 Difference]: Finished difference Result 141 states and 176 transitions. [2021-11-12 23:44:25,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:44:25,876 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 [2021-11-12 23:44:25,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:25,878 INFO L225 Difference]: With dead ends: 141 [2021-11-12 23:44:25,878 INFO L226 Difference]: Without dead ends: 106 [2021-11-12 23:44:25,879 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 [2021-11-12 23:44:25,880 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 29 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.41ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.89ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:25,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 320 Invalid, 15 Unknown, 0 Unchecked, 2.41ms Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 48.89ms Time] [2021-11-12 23:44:25,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-12 23:44:25,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 98. [2021-11-12 23:44:25,891 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) [2021-11-12 23:44:25,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 118 transitions. [2021-11-12 23:44:25,892 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 118 transitions. Word has length 37 [2021-11-12 23:44:25,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:25,893 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 118 transitions. [2021-11-12 23:44:25,893 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) [2021-11-12 23:44:25,893 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 118 transitions. [2021-11-12 23:44:25,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-12 23:44:25,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:25,895 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] [2021-11-12 23:44:25,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:26,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:26,096 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:44:26,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:26,097 INFO L85 PathProgramCache]: Analyzing trace with hash 265660240, now seen corresponding path program 1 times [2021-11-12 23:44:26,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:26,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348905402] [2021-11-12 23:44:26,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:26,100 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:26,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:26,101 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:26,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:44:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:29,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:44:30,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:30,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:30,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:30,593 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:30,593 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:30,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348905402] [2021-11-12 23:44:30,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348905402] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:30,594 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:30,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-12 23:44:30,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398159934] [2021-11-12 23:44:30,594 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:30,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:44:30,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:30,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:44:30,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:44:30,596 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) [2021-11-12 23:44:30,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:30,848 INFO L93 Difference]: Finished difference Result 110 states and 131 transitions. [2021-11-12 23:44:30,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:44:30,848 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 [2021-11-12 23:44:30,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:30,851 INFO L225 Difference]: With dead ends: 110 [2021-11-12 23:44:30,851 INFO L226 Difference]: Without dead ends: 108 [2021-11-12 23:44:30,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:44:30,852 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 25 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 143.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.37ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 158.52ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:30,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 838 Invalid, 58 Unknown, 0 Unchecked, 5.37ms Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 158.52ms Time] [2021-11-12 23:44:30,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-12 23:44:30,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2021-11-12 23:44:30,868 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) [2021-11-12 23:44:30,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 128 transitions. [2021-11-12 23:44:30,870 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 128 transitions. Word has length 37 [2021-11-12 23:44:30,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:30,870 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 128 transitions. [2021-11-12 23:44:30,871 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) [2021-11-12 23:44:30,871 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2021-11-12 23:44:30,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-12 23:44:30,873 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:30,873 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] [2021-11-12 23:44:30,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:31,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:31,079 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:44:31,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:31,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1062822234, now seen corresponding path program 1 times [2021-11-12 23:44:31,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:31,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270385495] [2021-11-12 23:44:31,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:31,083 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:31,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:31,084 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:31,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:44:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:34,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:44:34,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:35,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:35,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:35,980 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:35,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270385495] [2021-11-12 23:44:35,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270385495] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:35,980 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:35,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 23:44:35,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253888250] [2021-11-12 23:44:35,981 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:35,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:44:35,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:35,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:44:35,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:44:35,982 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) [2021-11-12 23:44:38,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:44:40,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:44:42,322 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 [] [2021-11-12 23:44:43,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:43,985 INFO L93 Difference]: Finished difference Result 175 states and 216 transitions. [2021-11-12 23:44:43,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:44:43,987 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 [2021-11-12 23:44:43,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:43,989 INFO L225 Difference]: With dead ends: 175 [2021-11-12 23:44:43,989 INFO L226 Difference]: Without dead ends: 134 [2021-11-12 23:44:43,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:44:43,991 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 65 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7537.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.98ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 7683.71ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:43,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 528 Invalid, 100 Unknown, 0 Unchecked, 3.98ms Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 3 Unknown, 26 Unchecked, 7683.71ms Time] [2021-11-12 23:44:43,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-12 23:44:44,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 114. [2021-11-12 23:44:44,002 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) [2021-11-12 23:44:44,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2021-11-12 23:44:44,004 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 41 [2021-11-12 23:44:44,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:44,005 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2021-11-12 23:44:44,005 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) [2021-11-12 23:44:44,005 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2021-11-12 23:44:44,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-12 23:44:44,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:44,007 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] [2021-11-12 23:44:44,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:44,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:44,223 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:44:44,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1320987672, now seen corresponding path program 1 times [2021-11-12 23:44:44,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:44,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227662934] [2021-11-12 23:44:44,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:44,228 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:44,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:44,229 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:44,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:44:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:00,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-12 23:45:00,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:00,184 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:45:00,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:45:00,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:45:00,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:45:00,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:45:00,187 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:45:00,187 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:45:00,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:00,578 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 [2021-11-12 23:45:09,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:45:09,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:11,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:12,572 INFO L354 Elim1Store]: treesize reduction 9046, result has 0.0 percent of original size [2021-11-12 23:45:12,573 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 [2021-11-12 23:45:12,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:45:12,612 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:45:12,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227662934] [2021-11-12 23:45:12,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227662934] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:12,612 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:12,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 7] imperfect sequences [] total 15 [2021-11-12 23:45:12,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399371227] [2021-11-12 23:45:12,613 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:12,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 23:45:12,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:45:12,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 23:45:12,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:45:12,614 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) [2021-11-12 23:45:14,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:45:16,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:45:18,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:45:21,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:45:22,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:45:24,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:45:25,896 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:45:28,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:28,841 INFO L93 Difference]: Finished difference Result 199 states and 244 transitions. [2021-11-12 23:45:28,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:45:28,844 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 [2021-11-12 23:45:28,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:28,846 INFO L225 Difference]: With dead ends: 199 [2021-11-12 23:45:28,846 INFO L226 Difference]: Without dead ends: 146 [2021-11-12 23:45:28,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:45:28,848 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 97 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13645.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.00ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 13871.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:28,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 866 Invalid, 137 Unknown, 0 Unchecked, 7.00ms Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 3 Unknown, 43 Unchecked, 13871.80ms Time] [2021-11-12 23:45:28,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-12 23:45:28,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 132. [2021-11-12 23:45:28,860 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) [2021-11-12 23:45:28,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 158 transitions. [2021-11-12 23:45:28,862 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 158 transitions. Word has length 41 [2021-11-12 23:45:28,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:28,862 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 158 transitions. [2021-11-12 23:45:28,863 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) [2021-11-12 23:45:28,863 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 158 transitions. [2021-11-12 23:45:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-12 23:45:28,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:28,865 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] [2021-11-12 23:45:28,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-12 23:45:29,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:45:29,079 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:29,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:29,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1694115946, now seen corresponding path program 1 times [2021-11-12 23:45:29,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:45:29,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536138878] [2021-11-12 23:45:29,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:29,083 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:45:29,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:45:29,084 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:45:29,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:54:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:54:46,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-12 23:54:46,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:54:46,226 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 [2021-11-12 23:54:46,242 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 [2021-11-12 23:54:46,356 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:54:46,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 498 [2021-11-12 23:54:46,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:54:46,372 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1037 [2021-11-12 23:54:46,399 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 [2021-11-12 23:54:46,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:46,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,238 INFO L244 Elim1Store]: Index analysis took 430 ms [2021-11-12 23:54:47,246 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 [2021-11-12 23:54:47,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:54:47,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 498 [2021-11-12 23:54:47,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:54:47,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1037 [2021-11-12 23:54:47,313 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 [2021-11-12 23:54:47,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:47,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:54:48,253 INFO L244 Elim1Store]: Index analysis took 493 ms [2021-11-12 23:54:48,259 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 [2021-11-12 23:54:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:54:49,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:54:51,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:54:51,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 703 [2021-11-12 23:54:51,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:54:51,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1248 [2021-11-12 23:54:51,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:54:51,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1541 [2021-11-12 23:54:51,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:54:51,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2086 [2021-11-12 23:54:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:54:52,461 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:54:52,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536138878] [2021-11-12 23:54:52,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536138878] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:54:52,461 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:54:52,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 8] imperfect sequences [] total 17 [2021-11-12 23:54:52,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760901149] [2021-11-12 23:54:52,461 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:54:52,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 23:54:52,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:54:52,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 23:54:52,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:54:52,463 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) [2021-11-12 23:54:54,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:54:56,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:54:58,710 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:00,594 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:02,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:05,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:07,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:09,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:09,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:55:09,645 INFO L93 Difference]: Finished difference Result 245 states and 308 transitions. [2021-11-12 23:55:09,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:55:09,647 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 [2021-11-12 23:55:09,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:55:09,649 INFO L225 Difference]: With dead ends: 245 [2021-11-12 23:55:09,649 INFO L226 Difference]: Without dead ends: 178 [2021-11-12 23:55:09,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:55:09,650 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 126 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 31 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16633.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.87ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 112 IncrementalHoareTripleChecker+Unchecked, 16895.24ms IncrementalHoareTripleChecker+Time [2021-11-12 23:55:09,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 1207 Invalid, 256 Unknown, 0 Unchecked, 6.87ms Time], IncrementalHoareTripleChecker [31 Valid, 108 Invalid, 5 Unknown, 112 Unchecked, 16895.24ms Time] [2021-11-12 23:55:09,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-11-12 23:55:09,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 153. [2021-11-12 23:55:09,666 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) [2021-11-12 23:55:09,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 188 transitions. [2021-11-12 23:55:09,668 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 188 transitions. Word has length 41 [2021-11-12 23:55:09,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:55:09,668 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 188 transitions. [2021-11-12 23:55:09,668 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) [2021-11-12 23:55:09,669 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 188 transitions. [2021-11-12 23:55:09,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-12 23:55:09,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:55:09,670 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] [2021-11-12 23:55:09,891 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forcibly destroying the process [2021-11-12 23:55:10,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 137 [2021-11-12 23:55:10,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:55:10,021 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:55:10,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:55:10,021 INFO L85 PathProgramCache]: Analyzing trace with hash -525525668, now seen corresponding path program 1 times [2021-11-12 23:55:10,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:55:10,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454231688] [2021-11-12 23:55:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:55:10,028 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:55:10,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:55:10,029 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:55:10,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:55:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:55:20,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 1737 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-12 23:55:20,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:55:20,940 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:55:20,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:55:20,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:55:20,942 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:55:20,943 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:55:20,943 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:55:20,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:55:20,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:55:20,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:20,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:21,367 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 [2021-11-12 23:55:26,545 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:55:26,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:55:28,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:28,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:28,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:28,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:28,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:28,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:28,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:32,835 INFO L354 Elim1Store]: treesize reduction 8880, result has 1.8 percent of original size [2021-11-12 23:55:32,835 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 [2021-11-12 23:55:32,866 INFO L354 Elim1Store]: treesize reduction 1410, result has 0.1 percent of original size [2021-11-12 23:55:32,866 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 [2021-11-12 23:55:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:55:33,031 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:55:33,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454231688] [2021-11-12 23:55:33,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454231688] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:55:33,032 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:55:33,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 7] imperfect sequences [] total 15 [2021-11-12 23:55:33,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689725002] [2021-11-12 23:55:33,032 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:55:33,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 23:55:33,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:55:33,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 23:55:33,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:55:33,034 INFO L87 Difference]: Start difference. First operand 153 states and 188 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) [2021-11-12 23:55:35,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:37,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:39,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:41,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:44,572 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:46,589 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:49,527 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:51,012 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:55:51,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:55:51,341 INFO L93 Difference]: Finished difference Result 269 states and 337 transitions. [2021-11-12 23:55:51,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 23:55:51,343 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 [2021-11-12 23:55:51,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:55:51,345 INFO L225 Difference]: With dead ends: 269 [2021-11-12 23:55:51,345 INFO L226 Difference]: Without dead ends: 187 [2021-11-12 23:55:51,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:55:51,346 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 128 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 44 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17516.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.88ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 17840.67ms IncrementalHoareTripleChecker+Time [2021-11-12 23:55:51,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 905 Invalid, 205 Unknown, 0 Unchecked, 3.88ms Time], IncrementalHoareTripleChecker [44 Valid, 123 Invalid, 6 Unknown, 32 Unchecked, 17840.67ms Time] [2021-11-12 23:55:51,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-11-12 23:55:51,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 160. [2021-11-12 23:55:51,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 126 states have internal predecessors, (145), 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) [2021-11-12 23:55:51,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 196 transitions. [2021-11-12 23:55:51,367 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 196 transitions. Word has length 41 [2021-11-12 23:55:51,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:55:51,367 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 196 transitions. [2021-11-12 23:55:51,368 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) [2021-11-12 23:55:51,368 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 196 transitions. [2021-11-12 23:55:51,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 23:55:51,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:55:51,369 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] [2021-11-12 23:55:51,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:55:51,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:55:51,579 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:55:51,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:55:51,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1989861315, now seen corresponding path program 1 times [2021-11-12 23:55:51,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:55:51,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497318984] [2021-11-12 23:55:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:55:51,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:55:51,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:55:51,584 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:55:51,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 23:55:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:55:55,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:55:55,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:55:56,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:55:56,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:55:56,885 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:55:56,885 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:55:56,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497318984] [2021-11-12 23:55:56,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497318984] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:55:56,885 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:55:56,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-12 23:55:56,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189858717] [2021-11-12 23:55:56,885 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:55:56,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:55:56,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:55:56,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:55:56,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:55:56,886 INFO L87 Difference]: Start difference. First operand 160 states and 196 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) [2021-11-12 23:55:59,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:56:01,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:56:03,137 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:56:05,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:56:06,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:56:07,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:56:09,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:56:09,837 INFO L93 Difference]: Finished difference Result 251 states and 311 transitions. [2021-11-12 23:56:09,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:56:09,841 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 [2021-11-12 23:56:09,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:56:09,843 INFO L225 Difference]: With dead ends: 251 [2021-11-12 23:56:09,843 INFO L226 Difference]: Without dead ends: 174 [2021-11-12 23:56:09,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:56:09,844 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 43 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11626.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.39ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 11868.91ms IncrementalHoareTripleChecker+Time [2021-11-12 23:56:09,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 813 Invalid, 168 Unknown, 0 Unchecked, 3.39ms Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 3 Unknown, 60 Unchecked, 11868.91ms Time] [2021-11-12 23:56:09,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-12 23:56:09,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 159. [2021-11-12 23:56:09,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 121 states have (on average 1.1570247933884297) internal successors, (140), 125 states have internal predecessors, (140), 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) [2021-11-12 23:56:09,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 191 transitions. [2021-11-12 23:56:09,860 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 191 transitions. Word has length 43 [2021-11-12 23:56:09,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:56:09,860 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 191 transitions. [2021-11-12 23:56:09,861 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) [2021-11-12 23:56:09,861 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 191 transitions. [2021-11-12 23:56:09,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 23:56:09,862 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:56:09,862 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] [2021-11-12 23:56:09,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:56:10,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:56:10,083 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:56:10,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:56:10,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1627279489, now seen corresponding path program 1 times [2021-11-12 23:56:10,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:56:10,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432874383] [2021-11-12 23:56:10,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:56:10,088 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:56:10,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:56:10,089 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:56:10,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 23:56:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:56:13,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:56:13,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:56:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:56:14,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:56:14,729 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:56:14,729 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:56:14,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432874383] [2021-11-12 23:56:14,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432874383] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:56:14,730 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:56:14,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 14 [2021-11-12 23:56:14,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068824105] [2021-11-12 23:56:14,730 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:56:14,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:56:14,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:56:14,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:56:14,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:56:14,732 INFO L87 Difference]: Start difference. First operand 159 states and 191 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) [2021-11-12 23:56:15,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:56:15,334 INFO L93 Difference]: Finished difference Result 179 states and 214 transitions. [2021-11-12 23:56:15,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:56:15,335 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 [2021-11-12 23:56:15,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:56:15,337 INFO L225 Difference]: With dead ends: 179 [2021-11-12 23:56:15,337 INFO L226 Difference]: Without dead ends: 177 [2021-11-12 23:56:15,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:56:15,338 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 28 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 307.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.18ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 327.66ms IncrementalHoareTripleChecker+Time [2021-11-12 23:56:15,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 1137 Invalid, 118 Unknown, 0 Unchecked, 3.18ms Time], IncrementalHoareTripleChecker [10 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 327.66ms Time] [2021-11-12 23:56:15,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-11-12 23:56:15,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 163. [2021-11-12 23:56:15,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 125 states have (on average 1.152) internal successors, (144), 129 states have internal predecessors, (144), 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) [2021-11-12 23:56:15,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 195 transitions. [2021-11-12 23:56:15,357 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 195 transitions. Word has length 43 [2021-11-12 23:56:15,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:56:15,357 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 195 transitions. [2021-11-12 23:56:15,357 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) [2021-11-12 23:56:15,358 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 195 transitions. [2021-11-12 23:56:15,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 23:56:15,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:56:15,359 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] [2021-11-12 23:56:15,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-12 23:56:15,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:56:15,579 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:56:15,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:56:15,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1966623229, now seen corresponding path program 1 times [2021-11-12 23:56:15,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:56:15,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362749324] [2021-11-12 23:56:15,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:56:15,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:56:15,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:56:15,584 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:56:15,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 23:56:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:56:26,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-12 23:56:26,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:56:26,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:56:26,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:56:26,259 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:56:26,259 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:56:26,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:56:26,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:56:26,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:56:26,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:56:26,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:26,662 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 [2021-11-12 23:56:32,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:56:32,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:56:33,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:33,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:33,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:33,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:33,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:33,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:33,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:56:38,163 INFO L354 Elim1Store]: treesize reduction 8880, result has 1.8 percent of original size [2021-11-12 23:56:38,164 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 [2021-11-12 23:56:38,193 INFO L354 Elim1Store]: treesize reduction 1410, result has 0.1 percent of original size [2021-11-12 23:56:38,194 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 [2021-11-12 23:56:38,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:56:38,342 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:56:38,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362749324] [2021-11-12 23:56:38,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362749324] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:56:38,342 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:56:38,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 7] imperfect sequences [] total 15 [2021-11-12 23:56:38,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123061893] [2021-11-12 23:56:38,343 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:56:38,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 23:56:38,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:56:38,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 23:56:38,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:56:38,344 INFO L87 Difference]: Start difference. First operand 163 states and 195 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) [2021-11-12 23:56:40,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:56:42,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:56:44,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:56:46,618 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:56:48,971 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 [] [2021-11-12 23:56:50,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:56:50,052 INFO L93 Difference]: Finished difference Result 290 states and 359 transitions. [2021-11-12 23:56:50,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 23:56:50,054 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 [2021-11-12 23:56:50,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:56:50,056 INFO L225 Difference]: With dead ends: 290 [2021-11-12 23:56:50,056 INFO L226 Difference]: Without dead ends: 189 [2021-11-12 23:56:50,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:56:50,057 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 97 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 12 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11256.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.89ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 86 IncrementalHoareTripleChecker+Unchecked, 11518.97ms IncrementalHoareTripleChecker+Time [2021-11-12 23:56:50,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 1216 Invalid, 235 Unknown, 0 Unchecked, 3.89ms Time], IncrementalHoareTripleChecker [12 Valid, 132 Invalid, 5 Unknown, 86 Unchecked, 11518.97ms Time] [2021-11-12 23:56:50,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-12 23:56:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 144. [2021-11-12 23:56:50,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 107 states have (on average 1.1401869158878504) internal successors, (122), 110 states have internal predecessors, (122), 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) [2021-11-12 23:56:50,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 170 transitions. [2021-11-12 23:56:50,072 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 170 transitions. Word has length 43 [2021-11-12 23:56:50,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:56:50,073 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 170 transitions. [2021-11-12 23:56:50,073 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) [2021-11-12 23:56:50,073 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 170 transitions. [2021-11-12 23:56:50,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-12 23:56:50,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:56:50,074 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] [2021-11-12 23:56:50,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:56:50,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:56:50,290 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:56:50,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:56:50,290 INFO L85 PathProgramCache]: Analyzing trace with hash 598348136, now seen corresponding path program 1 times [2021-11-12 23:56:50,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:56:50,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527703982] [2021-11-12 23:56:50,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:56:50,293 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:56:50,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:56:50,294 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:56:50,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 23:56:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:56:54,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-12 23:56:54,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:56:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:56:57,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:57:02,760 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:57:02,761 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 [2021-11-12 23:57:02,812 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-12 23:57:02,812 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 [2021-11-12 23:57:05,655 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:57:05,656 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 [2021-11-12 23:57:05,720 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-12 23:57:05,720 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 [2021-11-12 23:57:05,940 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 23:57:05,940 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:57:05,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527703982] [2021-11-12 23:57:05,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527703982] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:57:05,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [317932309] [2021-11-12 23:57:05,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:57:05,941 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:57:05,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:57:05,943 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:57:05,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-12 23:57:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:57:14,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:57:14,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:57:15,065 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-12 23:57:15,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:57:15,587 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-12 23:57:15,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [317932309] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:57:15,588 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:57:15,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [18, 16] total 34 [2021-11-12 23:57:15,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598365385] [2021-11-12 23:57:15,588 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:57:15,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:57:15,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:57:15,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:57:15,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1022, Unknown=0, NotChecked=0, Total=1122 [2021-11-12 23:57:15,590 INFO L87 Difference]: Start difference. First operand 144 states and 170 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) [2021-11-12 23:57:15,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:57:15,947 INFO L93 Difference]: Finished difference Result 156 states and 183 transitions. [2021-11-12 23:57:15,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:57:15,948 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 [2021-11-12 23:57:15,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:57:15,950 INFO L225 Difference]: With dead ends: 156 [2021-11-12 23:57:15,950 INFO L226 Difference]: Without dead ends: 154 [2021-11-12 23:57:15,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 190 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=112, Invalid=1148, Unknown=0, NotChecked=0, Total=1260 [2021-11-12 23:57:15,952 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 26 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 145.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.93ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 167.87ms IncrementalHoareTripleChecker+Time [2021-11-12 23:57:15,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 967 Invalid, 59 Unknown, 0 Unchecked, 1.93ms Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 167.87ms Time] [2021-11-12 23:57:15,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-12 23:57:15,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2021-11-12 23:57:15,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 113 states have (on average 1.1327433628318584) internal successors, (128), 117 states have internal predecessors, (128), 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) [2021-11-12 23:57:15,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 180 transitions. [2021-11-12 23:57:15,968 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 180 transitions. Word has length 57 [2021-11-12 23:57:15,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:57:15,969 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 180 transitions. [2021-11-12 23:57:15,969 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) [2021-11-12 23:57:15,969 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 180 transitions. [2021-11-12 23:57:15,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-12 23:57:15,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:57:15,971 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] [2021-11-12 23:57:16,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:57:16,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2021-11-12 23:57:16,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:57:16,392 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:57:16,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:57:16,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1061292592, now seen corresponding path program 1 times [2021-11-12 23:57:16,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:57:16,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141968877] [2021-11-12 23:57:16,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:57:16,396 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:57:16,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:57:16,396 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:57:16,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f2a47-eb31-4ab9-8785-a9b61e1070e7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 23:57:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:57:20,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-12 23:57:20,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:57:24,212 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:57:24,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:57:39,199 WARN L227 SmtUtils]: Spent 11.87s 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) [2021-11-12 23:57:39,205 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-12 23:57:39,216 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