./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:21:41,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:21:41,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:21:42,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:21:42,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:21:42,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:21:42,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:21:42,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:21:42,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:21:42,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:21:42,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:21:42,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:21:42,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:21:42,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:21:42,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:21:42,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:21:42,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:21:42,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:21:42,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:21:42,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:21:42,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:21:42,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:21:42,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:21:42,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:21:42,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:21:42,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:21:42,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:21:42,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:21:42,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:21:42,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:21:42,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:21:42,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:21:42,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:21:42,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:21:42,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:21:42,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:21:42,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:21:42,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:21:42,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:21:42,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:21:42,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:21:42,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:21:42,157 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:21:42,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:21:42,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:21:42,158 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:21:42,159 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:21:42,159 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:21:42,159 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:21:42,159 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:21:42,159 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:21:42,160 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:21:42,160 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:21:42,160 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:21:42,161 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:21:42,161 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:21:42,161 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:21:42,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:21:42,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:21:42,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:21:42,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:21:42,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:21:42,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:21:42,163 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:21:42,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:21:42,164 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:21:42,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:21:42,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:21:42,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:21:42,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:21:42,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:21:42,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:21:42,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:21:42,166 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:21:42,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:21:42,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:21:42,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:21:42,167 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:21:42,167 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_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 [2021-11-07 01:21:42,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:21:42,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:21:42,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:21:42,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:21:42,546 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:21:42,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-07 01:21:42,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/data/c8eba25e2/93c1942c7dd942a490543296f72f4d9c/FLAGe323ebd1a [2021-11-07 01:21:43,733 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:21:43,733 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-07 01:21:43,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/data/c8eba25e2/93c1942c7dd942a490543296f72f4d9c/FLAGe323ebd1a [2021-11-07 01:21:44,129 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/data/c8eba25e2/93c1942c7dd942a490543296f72f4d9c [2021-11-07 01:21:44,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:21:44,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:21:44,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:21:44,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:21:44,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:21:44,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:44" (1/1) ... [2021-11-07 01:21:44,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f86290e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:44, skipping insertion in model container [2021-11-07 01:21:44,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:44" (1/1) ... [2021-11-07 01:21:44,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:21:44,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:21:44,650 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_24f8c417-0e6c-4d2d-8318-be04d2426bce/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-07 01:21:44,658 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_24f8c417-0e6c-4d2d-8318-be04d2426bce/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-07 01:21:44,686 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:21:44,693 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:21:45,788 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:21:45,884 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:45,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:45,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:45,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:45,888 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:45,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:45,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:45,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:45,931 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:46,400 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:21:46,402 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:21:46,404 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:21:46,405 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:21:46,408 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:21:46,409 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:21:46,410 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:21:46,411 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:21:46,412 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:21:46,413 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:21:46,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:46,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:46,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:21:46,809 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:21:46,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1ba7eb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:46, skipping insertion in model container [2021-11-07 01:21:46,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:21:46,812 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:21:46,815 INFO L168 Benchmark]: Toolchain (without parser) took 2676.76 ms. Allocated memory was 115.3 MB in the beginning and 148.9 MB in the end (delta: 33.6 MB). Free memory was 67.0 MB in the beginning and 112.2 MB in the end (delta: -45.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:21:46,816 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 115.3 MB. Free memory is still 91.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:21:46,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2668.09 ms. Allocated memory was 115.3 MB in the beginning and 148.9 MB in the end (delta: 33.6 MB). Free memory was 66.8 MB in the beginning and 112.2 MB in the end (delta: -45.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:21:46,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 115.3 MB. Free memory is still 91.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2668.09 ms. Allocated memory was 115.3 MB in the beginning and 148.9 MB in the end (delta: 33.6 MB). Free memory was 66.8 MB in the beginning and 112.2 MB in the end (delta: -45.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2886]: 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_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:21:49,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:21:49,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:21:49,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:21:49,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:21:49,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:21:49,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:21:49,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:21:49,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:21:49,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:21:49,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:21:49,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:21:49,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:21:49,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:21:49,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:21:49,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:21:49,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:21:49,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:21:49,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:21:49,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:21:49,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:21:49,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:21:49,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:21:49,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:21:49,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:21:49,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:21:49,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:21:49,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:21:49,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:21:49,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:21:49,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:21:49,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:21:49,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:21:49,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:21:49,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:21:49,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:21:49,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:21:49,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:21:49,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:21:49,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:21:50,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:21:50,007 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:21:50,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:21:50,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:21:50,068 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:21:50,068 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:21:50,068 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:21:50,068 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:21:50,069 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:21:50,069 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:21:50,069 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:21:50,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:21:50,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:21:50,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:21:50,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:21:50,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:21:50,074 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:21:50,074 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:21:50,074 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:21:50,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:21:50,075 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:21:50,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:21:50,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:21:50,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:21:50,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:21:50,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:21:50,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:21:50,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:21:50,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:21:50,077 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:21:50,078 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:21:50,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:21:50,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:21:50,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:21:50,079 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_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 [2021-11-07 01:21:50,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:21:50,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:21:50,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:21:50,680 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:21:50,688 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:21:50,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-07 01:21:50,788 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/data/0077b54a5/d3847ab0ee7a4c1fbfa5e9ef938adfec/FLAGc7f0be33c [2021-11-07 01:21:52,017 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:21:52,018 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-07 01:21:52,070 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/data/0077b54a5/d3847ab0ee7a4c1fbfa5e9ef938adfec/FLAGc7f0be33c [2021-11-07 01:21:52,333 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/data/0077b54a5/d3847ab0ee7a4c1fbfa5e9ef938adfec [2021-11-07 01:21:52,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:21:52,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:21:52,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:21:52,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:21:52,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:21:52,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f586235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52, skipping insertion in model container [2021-11-07 01:21:52,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:21:52,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:21:52,868 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_24f8c417-0e6c-4d2d-8318-be04d2426bce/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-07 01:21:52,876 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_24f8c417-0e6c-4d2d-8318-be04d2426bce/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-07 01:21:52,900 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:21:52,906 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:21:53,909 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:21:54,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:54,022 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:54,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:54,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:54,039 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:54,076 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:54,077 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:54,079 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:54,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:54,582 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:21:54,584 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:21:54,585 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:21:54,587 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:21:54,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:21:54,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:21:54,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:21:54,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:21:54,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:21:54,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:21:54,874 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:54,875 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:54,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:21:55,050 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:21:55,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:21:55,125 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_24f8c417-0e6c-4d2d-8318-be04d2426bce/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-07 01:21:55,126 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_24f8c417-0e6c-4d2d-8318-be04d2426bce/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-07 01:21:55,128 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:21:55,130 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:21:55,205 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:21:55,242 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,243 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,243 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,244 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,266 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,267 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,268 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:21:55,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:21:55,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:21:55,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:21:55,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:21:55,328 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:21:55,329 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:21:55,329 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:21:55,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:21:55,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:21:55,400 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:21:55,482 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:21:55,516 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_24f8c417-0e6c-4d2d-8318-be04d2426bce/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-07 01:21:55,517 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_24f8c417-0e6c-4d2d-8318-be04d2426bce/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-07 01:21:55,519 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:21:55,520 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:21:55,556 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:21:55,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,583 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:21:55,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:21:55,625 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:21:55,626 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:21:55,627 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:21:55,628 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:21:55,629 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:21:55,630 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:21:55,630 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:21:55,631 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:21:55,674 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,676 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:55,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:21:56,043 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:21:56,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56 WrapperNode [2021-11-07 01:21:56,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:21:56,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:21:56,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:21:56,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:21:56,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56" (1/1) ... [2021-11-07 01:21:56,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56" (1/1) ... [2021-11-07 01:21:56,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:21:56,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:21:56,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:21:56,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:21:56,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56" (1/1) ... [2021-11-07 01:21:56,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56" (1/1) ... [2021-11-07 01:21:56,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56" (1/1) ... [2021-11-07 01:21:56,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56" (1/1) ... [2021-11-07 01:21:56,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56" (1/1) ... [2021-11-07 01:21:56,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56" (1/1) ... [2021-11-07 01:21:56,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56" (1/1) ... [2021-11-07 01:21:56,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:21:56,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:21:56,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:21:56,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:21:56,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56" (1/1) ... [2021-11-07 01:21:56,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:21:56,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:21:56,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:21:56,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:21:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:21:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:21:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:21:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:21:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:21:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:21:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:21:56,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:21:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:21:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:21:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:21:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 01:21:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:21:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:21:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:21:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:22:15,522 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:22:15,523 INFO L299 CfgBuilder]: Removed 188 assume(true) statements. [2021-11-07 01:22:15,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:22:15 BoogieIcfgContainer [2021-11-07 01:22:15,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:22:15,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:22:15,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:22:15,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:22:15,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:21:52" (1/3) ... [2021-11-07 01:22:15,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2409f3bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:22:15, skipping insertion in model container [2021-11-07 01:22:15,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56" (2/3) ... [2021-11-07 01:22:15,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2409f3bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:22:15, skipping insertion in model container [2021-11-07 01:22:15,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:22:15" (3/3) ... [2021-11-07 01:22:15,537 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_size_harness.i [2021-11-07 01:22:15,544 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:22:15,545 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-07 01:22:15,607 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:22:15,614 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:22:15,615 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-07 01:22:15,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 246 states, 231 states have (on average 1.4458874458874458) internal successors, (334), 245 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:15,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 01:22:15,652 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:15,653 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:15,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:22:15,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:15,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1385932008, now seen corresponding path program 1 times [2021-11-07 01:22:15,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:15,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076982581] [2021-11-07 01:22:15,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:15,690 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:15,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:15,694 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:15,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:22:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:20,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:22:20,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:20,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:20,741 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:20,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076982581] [2021-11-07 01:22:20,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076982581] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:20,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:20,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:22:20,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823823783] [2021-11-07 01:22:20,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:22:20,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:20,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:22:20,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:22:20,780 INFO L87 Difference]: Start difference. First operand has 246 states, 231 states have (on average 1.4458874458874458) internal successors, (334), 245 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:20,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:20,837 INFO L93 Difference]: Finished difference Result 486 states and 661 transitions. [2021-11-07 01:22:20,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:22:20,838 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-07 01:22:20,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:20,853 INFO L225 Difference]: With dead ends: 486 [2021-11-07 01:22:20,853 INFO L226 Difference]: Without dead ends: 239 [2021-11-07 01:22:20,858 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:22:20,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-07 01:22:20,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-07 01:22:20,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.3244444444444445) internal successors, (298), 238 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:20,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 298 transitions. [2021-11-07 01:22:20,920 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 298 transitions. Word has length 40 [2021-11-07 01:22:20,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:20,921 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 298 transitions. [2021-11-07 01:22:20,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:20,922 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 298 transitions. [2021-11-07 01:22:20,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 01:22:20,924 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:20,925 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:20,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:21,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:21,126 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:22:21,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:21,127 INFO L85 PathProgramCache]: Analyzing trace with hash 577264856, now seen corresponding path program 1 times [2021-11-07 01:22:21,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:21,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332662057] [2021-11-07 01:22:21,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:21,135 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:21,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:21,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:21,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:22:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:26,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:22:26,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:26,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:26,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:26,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:26,745 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:26,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332662057] [2021-11-07 01:22:26,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332662057] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:26,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:26,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:22:26,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872036941] [2021-11-07 01:22:26,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:22:26,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:26,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:22:26,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:22:26,750 INFO L87 Difference]: Start difference. First operand 239 states and 298 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:27,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:27,052 INFO L93 Difference]: Finished difference Result 398 states and 491 transitions. [2021-11-07 01:22:27,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:22:27,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-07 01:22:27,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:27,057 INFO L225 Difference]: With dead ends: 398 [2021-11-07 01:22:27,057 INFO L226 Difference]: Without dead ends: 239 [2021-11-07 01:22:27,059 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:22:27,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-07 01:22:27,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-07 01:22:27,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.3155555555555556) internal successors, (296), 238 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:27,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 296 transitions. [2021-11-07 01:22:27,084 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 296 transitions. Word has length 40 [2021-11-07 01:22:27,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:27,084 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 296 transitions. [2021-11-07 01:22:27,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:27,085 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 296 transitions. [2021-11-07 01:22:27,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 01:22:27,087 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:27,088 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:27,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:27,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:27,310 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:22:27,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:27,311 INFO L85 PathProgramCache]: Analyzing trace with hash -252060921, now seen corresponding path program 1 times [2021-11-07 01:22:27,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:27,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552148102] [2021-11-07 01:22:27,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:27,321 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:27,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:27,322 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:27,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:22:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:32,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:22:32,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:32,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:32,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:32,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:32,856 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:32,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552148102] [2021-11-07 01:22:32,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552148102] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:32,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:32,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:22:32,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432226300] [2021-11-07 01:22:32,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:22:32,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:32,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:22:32,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:22:32,859 INFO L87 Difference]: Start difference. First operand 239 states and 296 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:34,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:34,014 INFO L93 Difference]: Finished difference Result 509 states and 617 transitions. [2021-11-07 01:22:34,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:22:34,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-07 01:22:34,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:34,019 INFO L225 Difference]: With dead ends: 509 [2021-11-07 01:22:34,019 INFO L226 Difference]: Without dead ends: 318 [2021-11-07 01:22:34,021 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:22:34,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-11-07 01:22:34,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 239. [2021-11-07 01:22:34,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.3066666666666666) internal successors, (294), 238 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:34,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 294 transitions. [2021-11-07 01:22:34,049 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 294 transitions. Word has length 44 [2021-11-07 01:22:34,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:34,049 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 294 transitions. [2021-11-07 01:22:34,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:34,050 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 294 transitions. [2021-11-07 01:22:34,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 01:22:34,053 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:34,053 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:34,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:34,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:34,268 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:22:34,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:34,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1945926435, now seen corresponding path program 1 times [2021-11-07 01:22:34,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:34,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137823486] [2021-11-07 01:22:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:34,275 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:34,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:34,276 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:34,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:22:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:39,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 1705 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:22:39,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:39,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:39,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:40,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:40,317 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:40,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137823486] [2021-11-07 01:22:40,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137823486] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:40,318 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:40,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:22:40,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066812861] [2021-11-07 01:22:40,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:22:40,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:40,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:22:40,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:22:40,321 INFO L87 Difference]: Start difference. First operand 239 states and 294 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:40,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:40,796 INFO L93 Difference]: Finished difference Result 399 states and 486 transitions. [2021-11-07 01:22:40,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:22:40,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-07 01:22:40,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:40,799 INFO L225 Difference]: With dead ends: 399 [2021-11-07 01:22:40,800 INFO L226 Difference]: Without dead ends: 239 [2021-11-07 01:22:40,801 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:22:40,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-07 01:22:40,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-07 01:22:40,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.2977777777777777) internal successors, (292), 238 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:40,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 292 transitions. [2021-11-07 01:22:40,823 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 292 transitions. Word has length 52 [2021-11-07 01:22:40,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:40,824 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 292 transitions. [2021-11-07 01:22:40,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:40,825 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 292 transitions. [2021-11-07 01:22:40,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 01:22:40,828 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:40,828 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:40,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:41,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:41,052 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:22:41,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:41,053 INFO L85 PathProgramCache]: Analyzing trace with hash -909602284, now seen corresponding path program 1 times [2021-11-07 01:22:41,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:41,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444364021] [2021-11-07 01:22:41,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:41,056 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:41,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:41,058 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:41,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:22:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:46,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 1737 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:22:46,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:46,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:46,910 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:46,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444364021] [2021-11-07 01:22:46,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444364021] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:46,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:46,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-07 01:22:46,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405162987] [2021-11-07 01:22:46,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:22:46,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:46,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:22:46,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:22:46,912 INFO L87 Difference]: Start difference. First operand 239 states and 292 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:47,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:47,967 INFO L93 Difference]: Finished difference Result 415 states and 506 transitions. [2021-11-07 01:22:47,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:22:47,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-07 01:22:47,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:47,971 INFO L225 Difference]: With dead ends: 415 [2021-11-07 01:22:47,971 INFO L226 Difference]: Without dead ends: 239 [2021-11-07 01:22:47,972 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:22:47,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-07 01:22:47,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-07 01:22:47,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.288888888888889) internal successors, (290), 238 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:48,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 290 transitions. [2021-11-07 01:22:48,000 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 290 transitions. Word has length 64 [2021-11-07 01:22:48,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:48,001 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 290 transitions. [2021-11-07 01:22:48,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:48,001 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 290 transitions. [2021-11-07 01:22:48,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 01:22:48,005 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:48,005 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:48,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:48,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:48,214 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:22:48,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:48,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1743581048, now seen corresponding path program 1 times [2021-11-07 01:22:48,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:48,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666593136] [2021-11-07 01:22:48,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:48,219 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:48,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:48,220 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:48,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:22:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:53,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 1796 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:22:53,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:53,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:54,210 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:54,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666593136] [2021-11-07 01:22:54,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666593136] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:54,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:54,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:22:54,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850074376] [2021-11-07 01:22:54,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:22:54,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:54,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:22:54,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:22:54,213 INFO L87 Difference]: Start difference. First operand 239 states and 290 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:54,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:54,571 INFO L93 Difference]: Finished difference Result 554 states and 664 transitions. [2021-11-07 01:22:54,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:22:54,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-07 01:22:54,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:54,579 INFO L225 Difference]: With dead ends: 554 [2021-11-07 01:22:54,579 INFO L226 Difference]: Without dead ends: 393 [2021-11-07 01:22:54,580 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:22:54,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-11-07 01:22:54,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 251. [2021-11-07 01:22:54,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 237 states have (on average 1.2911392405063291) internal successors, (306), 250 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:54,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2021-11-07 01:22:54,599 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 72 [2021-11-07 01:22:54,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:54,599 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2021-11-07 01:22:54,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:54,600 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2021-11-07 01:22:54,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 01:22:54,604 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:54,605 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:54,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:54,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:54,820 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:22:54,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:54,821 INFO L85 PathProgramCache]: Analyzing trace with hash -2041913158, now seen corresponding path program 1 times [2021-11-07 01:22:54,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:54,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183096745] [2021-11-07 01:22:54,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:54,824 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:54,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:54,826 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:54,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:22:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:00,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:23:00,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:00,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:00,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:01,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:01,415 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:23:01,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183096745] [2021-11-07 01:23:01,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183096745] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:23:01,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:23:01,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 01:23:01,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882794538] [2021-11-07 01:23:01,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:23:01,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:23:01,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:23:01,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:23:01,417 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:29,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:23:29,560 INFO L93 Difference]: Finished difference Result 579 states and 697 transitions. [2021-11-07 01:23:29,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:23:29,563 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-07 01:23:29,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:23:29,566 INFO L225 Difference]: With dead ends: 579 [2021-11-07 01:23:29,566 INFO L226 Difference]: Without dead ends: 403 [2021-11-07 01:23:29,567 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:23:29,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-07 01:23:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 251. [2021-11-07 01:23:29,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 237 states have (on average 1.2827004219409284) internal successors, (304), 250 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:29,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 304 transitions. [2021-11-07 01:23:29,585 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 304 transitions. Word has length 72 [2021-11-07 01:23:29,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:23:29,585 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 304 transitions. [2021-11-07 01:23:29,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:29,586 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 304 transitions. [2021-11-07 01:23:29,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 01:23:29,587 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:23:29,587 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:23:29,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:23:29,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:23:29,795 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:23:29,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:23:29,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1979873544, now seen corresponding path program 1 times [2021-11-07 01:23:29,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:23:29,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795503388] [2021-11-07 01:23:29,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:23:29,798 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:23:29,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:23:29,799 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:23:29,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:23:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:34,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:23:34,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:35,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:35,841 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:23:35,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795503388] [2021-11-07 01:23:35,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795503388] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:23:35,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:23:35,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-07 01:23:35,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577118625] [2021-11-07 01:23:35,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:23:35,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:23:35,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:23:35,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:23:35,844 INFO L87 Difference]: Start difference. First operand 251 states and 304 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:58,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:23:58,557 INFO L93 Difference]: Finished difference Result 581 states and 695 transitions. [2021-11-07 01:23:58,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:23:58,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-07 01:23:58,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:23:58,563 INFO L225 Difference]: With dead ends: 581 [2021-11-07 01:23:58,564 INFO L226 Difference]: Without dead ends: 405 [2021-11-07 01:23:58,565 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:23:58,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-07 01:23:58,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 255. [2021-11-07 01:23:58,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 241 states have (on average 1.2697095435684647) internal successors, (306), 254 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:58,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 306 transitions. [2021-11-07 01:23:58,582 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 306 transitions. Word has length 72 [2021-11-07 01:23:58,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:23:58,582 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 306 transitions. [2021-11-07 01:23:58,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:58,583 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 306 transitions. [2021-11-07 01:23:58,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 01:23:58,584 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:23:58,584 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:23:58,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 01:23:58,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:23:58,808 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:23:58,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:23:58,809 INFO L85 PathProgramCache]: Analyzing trace with hash -2113887050, now seen corresponding path program 1 times [2021-11-07 01:23:58,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:23:58,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515671832] [2021-11-07 01:23:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:23:58,812 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:23:58,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:23:58,813 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:23:58,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f8c417-0e6c-4d2d-8318-be04d2426bce/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:24:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:03,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 1794 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-07 01:24:03,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:06,384 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-07 01:24:06,385 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 625 treesize of output 605 [2021-11-07 01:24:10,012 INFO L354 Elim1Store]: treesize reduction 560, result has 54.6 percent of original size [2021-11-07 01:24:10,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 599 treesize of output 887 [2021-11-07 01:24:10,074 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-07 01:24:10,075 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 1703 treesize of output 1683 [2021-11-07 01:24:49,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:24:49,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:06,801 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-07 01:25:06,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 723 treesize of output 723 [2021-11-07 01:25:07,133 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-07 01:25:07,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 719 treesize of output 719 [2021-11-07 01:27:01,235 WARN L207 SmtUtils]: Spent 1.79 m on a formula simplification. DAG size of input: 1178 DAG size of output: 750 [2021-11-07 01:27:01,241 INFO L354 Elim1Store]: treesize reduction 1688, result has 56.6 percent of original size [2021-11-07 01:27:01,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 733 treesize of output 2405