./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/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 0f893dc40cf70b8d30dda6e110329e0bc2218e18bc668acf080889b069fe51ab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:24:35,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:24:35,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:24:35,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:24:35,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:24:35,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:24:35,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:24:35,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:24:35,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:24:35,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:24:35,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:24:35,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:24:35,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:24:35,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:24:35,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:24:35,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:24:35,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:24:35,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:24:35,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:24:35,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:24:35,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:24:35,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:24:35,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:24:35,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:24:35,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:24:35,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:24:35,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:24:35,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:24:35,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:24:35,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:24:35,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:24:35,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:24:35,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:24:35,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:24:35,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:24:35,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:24:35,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:24:35,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:24:35,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:24:35,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:24:35,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:24:35,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:24:35,220 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:24:35,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:24:35,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:24:35,224 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:24:35,224 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:24:35,224 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:24:35,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:24:35,225 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:24:35,225 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:24:35,225 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:24:35,226 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:24:35,227 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:24:35,227 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:24:35,227 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:24:35,228 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:24:35,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:24:35,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:24:35,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:24:35,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:24:35,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:24:35,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:24:35,230 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:24:35,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:24:35,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:24:35,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:24:35,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:24:35,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:24:35,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:24:35,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:24:35,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:24:35,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:24:35,235 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:24:35,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:24:35,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:24:35,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:24:35,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:24:35,236 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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f893dc40cf70b8d30dda6e110329e0bc2218e18bc668acf080889b069fe51ab [2021-11-07 01:24:35,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:24:35,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:24:35,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:24:35,599 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:24:35,600 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:24:35,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2021-11-07 01:24:35,689 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/data/b14ff7d98/5babc24e2e6d46c5a266e974b41b30ce/FLAG9002370a3 [2021-11-07 01:24:36,711 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:24:36,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2021-11-07 01:24:36,769 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/data/b14ff7d98/5babc24e2e6d46c5a266e974b41b30ce/FLAG9002370a3 [2021-11-07 01:24:37,133 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/data/b14ff7d98/5babc24e2e6d46c5a266e974b41b30ce [2021-11-07 01:24:37,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:24:37,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:24:37,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:24:37,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:24:37,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:24:37,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:24:37" (1/1) ... [2021-11-07 01:24:37,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f78e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:37, skipping insertion in model container [2021-11-07 01:24:37,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:24:37" (1/1) ... [2021-11-07 01:24:37,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:24:37,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:24:37,699 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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4493,4506] [2021-11-07 01:24:37,707 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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4553,4566] [2021-11-07 01:24:37,736 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:24:37,742 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:24:39,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,008 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,031 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,039 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,045 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:39,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:24:39,717 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:24:39,719 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:24:39,722 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:24:39,724 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:24:39,726 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:24:39,727 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:24:39,730 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:24:39,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:24:39,746 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:24:40,015 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:24:40,463 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,516 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,524 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,566 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,566 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,568 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,568 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:40,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:24:40,707 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 01:24:40,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31df490b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:40, skipping insertion in model container [2021-11-07 01:24:40,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:24:40,709 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:24:40,712 INFO L168 Benchmark]: Toolchain (without parser) took 3572.03 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 58.8 MB in the beginning and 95.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:24:40,712 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 100.7 MB. Free memory is still 54.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:24:40,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3568.83 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 58.8 MB in the beginning and 95.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:24:40,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 100.7 MB. Free memory is still 54.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3568.83 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 58.8 MB in the beginning and 95.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/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 0f893dc40cf70b8d30dda6e110329e0bc2218e18bc668acf080889b069fe51ab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:24:43,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:24:43,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:24:43,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:24:43,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:24:43,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:24:43,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:24:43,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:24:43,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:24:43,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:24:43,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:24:43,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:24:43,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:24:43,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:24:43,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:24:43,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:24:43,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:24:43,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:24:43,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:24:43,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:24:43,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:24:43,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:24:43,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:24:43,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:24:43,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:24:43,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:24:43,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:24:43,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:24:43,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:24:43,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:24:43,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:24:43,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:24:43,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:24:43,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:24:43,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:24:43,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:24:43,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:24:43,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:24:43,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:24:43,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:24:43,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:24:43,445 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:24:43,498 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:24:43,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:24:43,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:24:43,500 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:24:43,500 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:24:43,500 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:24:43,501 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:24:43,501 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:24:43,501 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:24:43,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:24:43,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:24:43,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:24:43,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:24:43,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:24:43,503 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:24:43,504 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:24:43,504 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:24:43,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:24:43,504 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:24:43,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:24:43,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:24:43,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:24:43,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:24:43,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:24:43,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:24:43,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:24:43,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:24:43,507 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:24:43,507 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:24:43,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:24:43,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:24:43,508 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:24:43,508 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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f893dc40cf70b8d30dda6e110329e0bc2218e18bc668acf080889b069fe51ab [2021-11-07 01:24:43,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:24:43,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:24:43,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:24:43,965 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:24:43,966 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:24:43,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2021-11-07 01:24:44,044 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/data/3eb18ae2a/80282fd0498646fd885c2c5bb84f2eb9/FLAGb00fea3c0 [2021-11-07 01:24:45,176 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:24:45,177 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2021-11-07 01:24:45,237 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/data/3eb18ae2a/80282fd0498646fd885c2c5bb84f2eb9/FLAGb00fea3c0 [2021-11-07 01:24:45,524 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/data/3eb18ae2a/80282fd0498646fd885c2c5bb84f2eb9 [2021-11-07 01:24:45,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:24:45,529 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:24:45,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:24:45,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:24:45,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:24:45,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:24:45" (1/1) ... [2021-11-07 01:24:45,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f6caac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:45, skipping insertion in model container [2021-11-07 01:24:45,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:24:45" (1/1) ... [2021-11-07 01:24:45,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:24:45,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:24:46,088 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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4493,4506] [2021-11-07 01:24:46,107 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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4553,4566] [2021-11-07 01:24:46,148 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:24:46,157 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:24:47,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:47,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:47,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:47,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:47,577 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:47,591 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:47,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:47,594 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:47,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:47,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:47,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:47,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:47,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:24:48,192 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:24:48,193 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:24:48,195 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:24:48,196 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:24:48,197 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:24:48,198 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:24:48,199 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:24:48,199 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:24:48,200 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:24:48,414 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:24:48,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,873 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,880 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,883 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,911 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:24:49,039 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:24:49,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:24:49,138 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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4493,4506] [2021-11-07 01:24:49,139 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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4553,4566] [2021-11-07 01:24:49,141 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:24:49,142 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:24:49,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,206 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,217 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,289 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:24:49,290 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:24:49,290 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:24:49,291 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:24:49,292 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:24:49,292 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:24:49,292 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:24:49,293 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:24:49,293 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:24:49,294 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:24:49,322 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:24:49,463 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,463 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,494 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,499 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,512 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,513 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,514 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,514 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,516 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:24:49,557 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:24:49,570 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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4493,4506] [2021-11-07 01:24:49,571 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_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4553,4566] [2021-11-07 01:24:49,572 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:24:49,573 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:24:49,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,614 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,614 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:24:49,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:24:49,645 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:24:49,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:24:49,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:24:49,647 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:24:49,666 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:24:49,667 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:24:49,667 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:24:49,667 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:24:49,687 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:24:49,812 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,839 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,842 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,842 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,869 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,870 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,870 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:24:50,329 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:24:50,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50 WrapperNode [2021-11-07 01:24:50,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:24:50,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:24:50,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:24:50,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:24:50,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:24:50,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:24:50,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:24:50,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:24:50,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:24:50,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:24:50,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:24:50,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:24:50,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:24:50,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:24:50,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:24:50,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:24:50,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 01:24:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:24:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:24:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:24:50,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:24:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 01:24:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:24:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 01:24:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:24:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:24:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:24:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:24:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:24:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:24:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:24:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:24:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:24:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:24:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:24:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:25:09,492 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume !true; [2021-11-07 01:25:09,500 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:25:09,500 INFO L299 CfgBuilder]: Removed 157 assume(true) statements. [2021-11-07 01:25:09,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:25:09 BoogieIcfgContainer [2021-11-07 01:25:09,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:25:09,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:25:09,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:25:09,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:25:09,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:24:45" (1/3) ... [2021-11-07 01:25:09,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747c1b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:25:09, skipping insertion in model container [2021-11-07 01:25:09,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (2/3) ... [2021-11-07 01:25:09,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747c1b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:25:09, skipping insertion in model container [2021-11-07 01:25:09,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:25:09" (3/3) ... [2021-11-07 01:25:09,513 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_begin_harness.i [2021-11-07 01:25:09,519 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:25:09,519 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 01:25:09,581 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:25:09,591 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 01:25:09,592 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 01:25:09,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 195 states have (on average 1.4564102564102563) internal successors, (284), 201 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:09,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 01:25:09,628 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:09,629 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] [2021-11-07 01:25:09,629 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:25:09,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:09,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1999182466, now seen corresponding path program 1 times [2021-11-07 01:25:09,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:09,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262024996] [2021-11-07 01:25:09,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:09,658 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:09,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:09,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:09,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:25:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:13,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:25:13,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:14,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:14,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:14,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:14,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262024996] [2021-11-07 01:25:14,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262024996] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:14,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:14,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:25:14,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690911189] [2021-11-07 01:25:14,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:25:14,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:14,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:25:14,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:25:14,531 INFO L87 Difference]: Start difference. First operand has 202 states, 195 states have (on average 1.4564102564102563) internal successors, (284), 201 states have internal predecessors, (284), 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 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:14,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:14,587 INFO L93 Difference]: Finished difference Result 399 states and 562 transitions. [2021-11-07 01:25:14,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:25:14,588 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 62 [2021-11-07 01:25:14,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:14,607 INFO L225 Difference]: With dead ends: 399 [2021-11-07 01:25:14,608 INFO L226 Difference]: Without dead ends: 195 [2021-11-07 01:25:14,614 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 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 01:25:14,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-07 01:25:14,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-07 01:25:14,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 194 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:14,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 257 transitions. [2021-11-07 01:25:14,682 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 257 transitions. Word has length 62 [2021-11-07 01:25:14,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:14,682 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 257 transitions. [2021-11-07 01:25:14,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:14,683 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 257 transitions. [2021-11-07 01:25:14,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 01:25:14,689 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:14,689 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:14,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:25:14,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:14,910 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:25:14,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:14,911 INFO L85 PathProgramCache]: Analyzing trace with hash 312696489, now seen corresponding path program 1 times [2021-11-07 01:25:14,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:14,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881899283] [2021-11-07 01:25:14,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:14,918 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:14,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:14,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:14,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:25:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:19,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:25:19,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:19,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:19,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:19,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:19,769 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:19,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881899283] [2021-11-07 01:25:19,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881899283] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:19,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:19,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:25:19,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601978068] [2021-11-07 01:25:19,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:19,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:19,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:19,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:19,772 INFO L87 Difference]: Start difference. First operand 195 states and 257 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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 01:25:20,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:20,227 INFO L93 Difference]: Finished difference Result 547 states and 727 transitions. [2021-11-07 01:25:20,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:25:20,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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 65 [2021-11-07 01:25:20,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:20,237 INFO L225 Difference]: With dead ends: 547 [2021-11-07 01:25:20,237 INFO L226 Difference]: Without dead ends: 374 [2021-11-07 01:25:20,242 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:20,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-11-07 01:25:20,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 201. [2021-11-07 01:25:20,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 195 states have (on average 1.3487179487179488) internal successors, (263), 200 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:20,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 263 transitions. [2021-11-07 01:25:20,275 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 263 transitions. Word has length 65 [2021-11-07 01:25:20,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:20,275 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 263 transitions. [2021-11-07 01:25:20,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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 01:25:20,276 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 263 transitions. [2021-11-07 01:25:20,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 01:25:20,279 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:20,280 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] [2021-11-07 01:25:20,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:20,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:20,490 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:25:20,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:20,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1921794729, now seen corresponding path program 1 times [2021-11-07 01:25:20,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:20,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307072058] [2021-11-07 01:25:20,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:20,497 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:20,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:20,498 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:20,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:25:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:24,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 1688 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:25:24,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:24,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:25,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:25,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:25,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307072058] [2021-11-07 01:25:25,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307072058] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:25,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:25,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:25:25,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734864576] [2021-11-07 01:25:25,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:25,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:25,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:25,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:25,324 INFO L87 Difference]: Start difference. First operand 201 states and 263 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:25,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:25,655 INFO L93 Difference]: Finished difference Result 379 states and 499 transitions. [2021-11-07 01:25:25,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:25:25,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-07 01:25:25,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:25,660 INFO L225 Difference]: With dead ends: 379 [2021-11-07 01:25:25,660 INFO L226 Difference]: Without dead ends: 201 [2021-11-07 01:25:25,661 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:25:25,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-07 01:25:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 195. [2021-11-07 01:25:25,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.3386243386243386) internal successors, (253), 194 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:25,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 253 transitions. [2021-11-07 01:25:25,671 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 253 transitions. Word has length 69 [2021-11-07 01:25:25,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:25,671 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 253 transitions. [2021-11-07 01:25:25,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:25,672 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 253 transitions. [2021-11-07 01:25:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 01:25:25,673 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:25,673 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:25,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:25,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:25,874 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:25:25,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:25,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1564681509, now seen corresponding path program 1 times [2021-11-07 01:25:25,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:25,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693495923] [2021-11-07 01:25:25,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:25,879 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:25,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:25,879 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:25,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:25:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:30,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:25:30,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:31,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:25:31,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:31,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:31,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 01:25:32,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:32,235 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:32,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693495923] [2021-11-07 01:25:32,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693495923] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:32,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:32,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-07 01:25:32,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058038885] [2021-11-07 01:25:32,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:25:32,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:32,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:25:32,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:25:32,237 INFO L87 Difference]: Start difference. First operand 195 states and 253 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 01:25:43,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:43,518 INFO L93 Difference]: Finished difference Result 399 states and 520 transitions. [2021-11-07 01:25:43,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:25:43,521 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 75 [2021-11-07 01:25:43,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:43,523 INFO L225 Difference]: With dead ends: 399 [2021-11-07 01:25:43,523 INFO L226 Difference]: Without dead ends: 239 [2021-11-07 01:25:43,523 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:25:43,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-07 01:25:43,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 216. [2021-11-07 01:25:43,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 210 states have (on average 1.319047619047619) internal successors, (277), 215 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:43,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 277 transitions. [2021-11-07 01:25:43,537 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 277 transitions. Word has length 75 [2021-11-07 01:25:43,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:43,537 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 277 transitions. [2021-11-07 01:25:43,537 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 01:25:43,538 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 277 transitions. [2021-11-07 01:25:43,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 01:25:43,539 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:43,539 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:43,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 01:25:43,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:43,746 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:25:43,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:43,747 INFO L85 PathProgramCache]: Analyzing trace with hash -2045761767, now seen corresponding path program 1 times [2021-11-07 01:25:43,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:43,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118443942] [2021-11-07 01:25:43,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:43,750 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:43,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:43,751 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:43,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:25:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:48,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1751 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:25:48,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:48,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:48,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:49,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:49,373 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:49,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118443942] [2021-11-07 01:25:49,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118443942] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:49,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:49,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:25:49,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073100336] [2021-11-07 01:25:49,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:25:49,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:49,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:25:49,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:49,375 INFO L87 Difference]: Start difference. First operand 216 states and 277 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:49,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:49,673 INFO L93 Difference]: Finished difference Result 398 states and 516 transitions. [2021-11-07 01:25:49,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:25:49,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-07 01:25:49,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:49,678 INFO L225 Difference]: With dead ends: 398 [2021-11-07 01:25:49,679 INFO L226 Difference]: Without dead ends: 214 [2021-11-07 01:25:49,679 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-07 01:25:49,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-07 01:25:49,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 208 states have (on average 1.2980769230769231) internal successors, (270), 213 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:49,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 270 transitions. [2021-11-07 01:25:49,692 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 270 transitions. Word has length 75 [2021-11-07 01:25:49,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:49,693 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 270 transitions. [2021-11-07 01:25:49,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:49,693 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 270 transitions. [2021-11-07 01:25:49,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 01:25:49,695 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:49,695 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:49,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:49,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:49,910 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:25:49,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:49,911 INFO L85 PathProgramCache]: Analyzing trace with hash -601323936, now seen corresponding path program 1 times [2021-11-07 01:25:49,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:49,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660210067] [2021-11-07 01:25:49,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:49,915 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:49,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:49,917 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:49,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:25:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:54,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:25:54,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:54,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:25:54,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-07 01:25:55,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:55,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:55,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 01:25:55,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:55,706 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:55,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660210067] [2021-11-07 01:25:55,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660210067] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:55,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:55,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 01:25:55,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083869030] [2021-11-07 01:25:55,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:25:55,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:55,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:25:55,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:55,708 INFO L87 Difference]: Start difference. First operand 214 states and 270 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:04,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:04,275 INFO L93 Difference]: Finished difference Result 519 states and 671 transitions. [2021-11-07 01:26:04,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:26:04,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 77 [2021-11-07 01:26:04,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:04,280 INFO L225 Difference]: With dead ends: 519 [2021-11-07 01:26:04,280 INFO L226 Difference]: Without dead ends: 339 [2021-11-07 01:26:04,281 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:26:04,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-11-07 01:26:04,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 215. [2021-11-07 01:26:04,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.291866028708134) internal successors, (270), 214 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:04,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 270 transitions. [2021-11-07 01:26:04,292 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 270 transitions. Word has length 77 [2021-11-07 01:26:04,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:04,293 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 270 transitions. [2021-11-07 01:26:04,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:04,293 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 270 transitions. [2021-11-07 01:26:04,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 01:26:04,294 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:04,295 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:04,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:04,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:04,510 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:26:04,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:04,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1211223159, now seen corresponding path program 1 times [2021-11-07 01:26:04,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:04,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351563776] [2021-11-07 01:26:04,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:04,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:04,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:04,514 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:04,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:26:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:09,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:26:09,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:09,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:09,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:10,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:10,027 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:10,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351563776] [2021-11-07 01:26:10,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351563776] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:10,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:10,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:26:10,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331843711] [2021-11-07 01:26:10,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:26:10,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:10,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:26:10,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:26:10,029 INFO L87 Difference]: Start difference. First operand 215 states and 270 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:10,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:10,605 INFO L93 Difference]: Finished difference Result 421 states and 549 transitions. [2021-11-07 01:26:10,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:26:10,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 78 [2021-11-07 01:26:10,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:10,614 INFO L225 Difference]: With dead ends: 421 [2021-11-07 01:26:10,614 INFO L226 Difference]: Without dead ends: 291 [2021-11-07 01:26:10,615 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:26:10,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-07 01:26:10,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 215. [2021-11-07 01:26:10,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.2822966507177034) internal successors, (268), 214 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:10,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 268 transitions. [2021-11-07 01:26:10,630 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 268 transitions. Word has length 78 [2021-11-07 01:26:10,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:10,631 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 268 transitions. [2021-11-07 01:26:10,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:10,632 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 268 transitions. [2021-11-07 01:26:10,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 01:26:10,633 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:10,633 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:10,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:10,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:10,846 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:26:10,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:10,847 INFO L85 PathProgramCache]: Analyzing trace with hash -443995649, now seen corresponding path program 1 times [2021-11-07 01:26:10,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:10,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717261419] [2021-11-07 01:26:10,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:10,850 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:10,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:10,851 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:10,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:26:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:15,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:26:15,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:16,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2021-11-07 01:26:16,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-07 01:26:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:16,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:16,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:16,622 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:16,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717261419] [2021-11-07 01:26:16,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717261419] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:16,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:16,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 01:26:16,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942869621] [2021-11-07 01:26:16,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:26:16,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:16,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:26:16,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:26:16,624 INFO L87 Difference]: Start difference. First operand 215 states and 268 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:32,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:32,512 INFO L93 Difference]: Finished difference Result 374 states and 479 transitions. [2021-11-07 01:26:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:26:32,515 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 82 [2021-11-07 01:26:32,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:32,518 INFO L225 Difference]: With dead ends: 374 [2021-11-07 01:26:32,518 INFO L226 Difference]: Without dead ends: 246 [2021-11-07 01:26:32,519 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:26:32,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-07 01:26:32,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 195. [2021-11-07 01:26:32,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.2698412698412698) internal successors, (240), 194 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:32,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 240 transitions. [2021-11-07 01:26:32,534 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 240 transitions. Word has length 82 [2021-11-07 01:26:32,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:32,535 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 240 transitions. [2021-11-07 01:26:32,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:32,535 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 240 transitions. [2021-11-07 01:26:32,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 01:26:32,536 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:32,537 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:32,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:32,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:32,750 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:26:32,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:32,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1981477469, now seen corresponding path program 1 times [2021-11-07 01:26:32,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:32,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230733296] [2021-11-07 01:26:32,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:32,759 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:32,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:32,760 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:32,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:26:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:37,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:26:37,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:38,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:38,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:38,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:38,437 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:38,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230733296] [2021-11-07 01:26:38,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230733296] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:38,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:38,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:26:38,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138702194] [2021-11-07 01:26:38,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:26:38,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:38,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:26:38,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:26:38,439 INFO L87 Difference]: Start difference. First operand 195 states and 240 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:38,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:38,492 INFO L93 Difference]: Finished difference Result 318 states and 404 transitions. [2021-11-07 01:26:38,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:26:38,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 84 [2021-11-07 01:26:38,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:38,494 INFO L225 Difference]: With dead ends: 318 [2021-11-07 01:26:38,495 INFO L226 Difference]: Without dead ends: 197 [2021-11-07 01:26:38,495 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:26:38,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-07 01:26:38,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-07 01:26:38,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 191 states have (on average 1.2670157068062826) internal successors, (242), 196 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:38,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 242 transitions. [2021-11-07 01:26:38,508 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 242 transitions. Word has length 84 [2021-11-07 01:26:38,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:38,509 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 242 transitions. [2021-11-07 01:26:38,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:38,509 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 242 transitions. [2021-11-07 01:26:38,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 01:26:38,510 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:38,510 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:38,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:38,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:38,724 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:26:38,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:38,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1445575357, now seen corresponding path program 1 times [2021-11-07 01:26:38,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:38,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924705643] [2021-11-07 01:26:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:38,728 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:38,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:38,728 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:38,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:26:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:43,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:26:43,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:43,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:43,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:44,296 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:44,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924705643] [2021-11-07 01:26:44,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924705643] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:26:44,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1145580068] [2021-11-07 01:26:44,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:44,296 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:26:44,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:26:44,297 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:26:44,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 01:26:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:46,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:26:46,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:26:46,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:47,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:26:47,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1145580068] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:47,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:26:47,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-11-07 01:26:47,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336875894] [2021-11-07 01:26:47,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:26:47,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:47,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:26:47,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:26:47,028 INFO L87 Difference]: Start difference. First operand 197 states and 242 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:49,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:49,896 INFO L93 Difference]: Finished difference Result 280 states and 350 transitions. [2021-11-07 01:26:49,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:26:49,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 86 [2021-11-07 01:26:49,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:49,901 INFO L225 Difference]: With dead ends: 280 [2021-11-07 01:26:49,901 INFO L226 Difference]: Without dead ends: 198 [2021-11-07 01:26:49,901 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:26:49,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-07 01:26:49,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 197. [2021-11-07 01:26:49,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 191 states have (on average 1.256544502617801) internal successors, (240), 196 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:49,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 240 transitions. [2021-11-07 01:26:49,914 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 240 transitions. Word has length 86 [2021-11-07 01:26:49,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:49,915 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 240 transitions. [2021-11-07 01:26:49,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:49,915 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 240 transitions. [2021-11-07 01:26:49,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 01:26:49,916 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:49,916 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:49,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2021-11-07 01:26:50,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-07 01:26:50,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:50,327 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:26:50,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:50,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1862922237, now seen corresponding path program 1 times [2021-11-07 01:26:50,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:50,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375407642] [2021-11-07 01:26:50,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:50,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:50,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:50,331 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:50,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:26:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:55,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:26:55,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:55,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:55,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:55,960 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:55,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375407642] [2021-11-07 01:26:55,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375407642] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:26:55,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [654867230] [2021-11-07 01:26:55,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:55,961 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:26:55,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:26:55,962 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:26:55,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-07 01:27:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:27:01,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:27:01,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:27:01,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:27:01,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:27:01,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:27:01,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [654867230] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:27:01,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531489584] [2021-11-07 01:27:01,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:27:01,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:27:01,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:27:01,988 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:27:01,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-07 01:27:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:27:04,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:27:04,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:27:04,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:27:04,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:27:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:27:05,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531489584] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:27:05,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:27:05,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2021-11-07 01:27:05,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262557922] [2021-11-07 01:27:05,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:27:05,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:27:05,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:27:05,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:27:05,568 INFO L87 Difference]: Start difference. First operand 197 states and 240 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:06,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:27:06,086 INFO L93 Difference]: Finished difference Result 322 states and 406 transitions. [2021-11-07 01:27:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:27:06,087 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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 87 [2021-11-07 01:27:06,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:27:06,089 INFO L225 Difference]: With dead ends: 322 [2021-11-07 01:27:06,089 INFO L226 Difference]: Without dead ends: 201 [2021-11-07 01:27:06,090 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:27:06,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-07 01:27:06,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-07 01:27:06,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 195 states have (on average 1.2512820512820513) internal successors, (244), 200 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:06,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 244 transitions. [2021-11-07 01:27:06,125 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 244 transitions. Word has length 87 [2021-11-07 01:27:06,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:27:06,126 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 244 transitions. [2021-11-07 01:27:06,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:06,127 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 244 transitions. [2021-11-07 01:27:06,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-07 01:27:06,129 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:27:06,130 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:27:06,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:27:06,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-07 01:27:06,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-07 01:27:06,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:27:06,751 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:27:06,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:27:06,751 INFO L85 PathProgramCache]: Analyzing trace with hash 756105021, now seen corresponding path program 2 times [2021-11-07 01:27:06,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:27:06,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642081775] [2021-11-07 01:27:06,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:27:06,755 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:27:06,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:27:06,757 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:27:06,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab7c185-6828-4a4a-b7c1-d7da0e6c4839/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 01:27:59,921 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 01:27:59,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:28:00,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 1829 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-07 01:28:00,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:28:01,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:28:01,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-07 01:28:04,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 509 treesize of output 377 [2021-11-07 01:28:04,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 206 [2021-11-07 01:28:11,851 WARN L207 SmtUtils]: Spent 7.05 s on a formula simplification. DAG size of input: 533 DAG size of output: 220 [2021-11-07 01:28:11,855 INFO L354 Elim1Store]: treesize reduction 5843, result has 10.6 percent of original size [2021-11-07 01:28:11,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 588 treesize of output 772