./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_front_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V --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 61592663790a1842b8bd7e9befeca1c276604b90aee8701db027349608c78395 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:51:53,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:51:53,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:51:53,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:51:53,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:51:53,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:51:53,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:51:53,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:51:53,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:51:53,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:51:53,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:51:53,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:51:53,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:51:53,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:51:53,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:51:53,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:51:53,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:51:53,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:51:53,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:51:53,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:51:53,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:51:53,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:51:53,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:51:53,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:51:53,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:51:53,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:51:53,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:51:53,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:51:53,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:51:53,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:51:53,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:51:53,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:51:53,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:51:53,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:51:53,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:51:53,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:51:53,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:51:53,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:51:53,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:51:53,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:51:53,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:51:53,105 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 01:51:53,141 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:51:53,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:51:53,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:51:53,144 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:51:53,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:51:53,145 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:51:53,146 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:51:53,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:51:53,146 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:51:53,147 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:51:53,148 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:51:53,148 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:51:53,149 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:51:53,149 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:51:53,149 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:51:53,150 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:51:53,150 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:51:53,150 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:51:53,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:51:53,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:51:53,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:51:53,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:51:53,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:51:53,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:51:53,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:51:53,153 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:51:53,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:51:53,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:51:53,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:51:53,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:51:53,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:51:53,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:51:53,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:51:53,156 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:51:53,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:51:53,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:51:53,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:51:53,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:51:53,157 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_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61592663790a1842b8bd7e9befeca1c276604b90aee8701db027349608c78395 [2021-11-23 01:51:53,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:51:53,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:51:53,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:51:53,604 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:51:53,605 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:51:53,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/aws-c-common/aws_linked_list_front_harness.i [2021-11-23 01:51:53,689 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/data/52b995737/3ec7470d026f45038b9c96bd3f2856e7/FLAG910df1637 [2021-11-23 01:51:54,608 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:51:54,609 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/sv-benchmarks/c/aws-c-common/aws_linked_list_front_harness.i [2021-11-23 01:51:54,660 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/data/52b995737/3ec7470d026f45038b9c96bd3f2856e7/FLAG910df1637 [2021-11-23 01:51:55,097 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/data/52b995737/3ec7470d026f45038b9c96bd3f2856e7 [2021-11-23 01:51:55,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:51:55,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:51:55,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:51:55,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:51:55,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:51:55,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:51:55" (1/1) ... [2021-11-23 01:51:55,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb333f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:55, skipping insertion in model container [2021-11-23 01:51:55,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:51:55" (1/1) ... [2021-11-23 01:51:55,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:51:55,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:51:55,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/sv-benchmarks/c/aws-c-common/aws_linked_list_front_harness.i[4495,4508] [2021-11-23 01:51:55,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/sv-benchmarks/c/aws-c-common/aws_linked_list_front_harness.i[4555,4568] [2021-11-23 01:51:56,766 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:56,767 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:56,767 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:56,769 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:56,770 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:56,787 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:56,788 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:56,791 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:56,792 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:56,794 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:56,796 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:56,797 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:56,798 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,272 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 01:51:57,273 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 01:51:57,275 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 01:51:57,276 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 01:51:57,278 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 01:51:57,278 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 01:51:57,279 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 01:51:57,280 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 01:51:57,280 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 01:51:57,281 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 01:51:57,464 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 01:51:57,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:51:57,550 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:51:57,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/sv-benchmarks/c/aws-c-common/aws_linked_list_front_harness.i[4495,4508] [2021-11-23 01:51:57,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/sv-benchmarks/c/aws-c-common/aws_linked_list_front_harness.i[4555,4568] [2021-11-23 01:51:57,648 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,648 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,649 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,650 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,651 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,662 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,663 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,664 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,665 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,666 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,667 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,668 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,668 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:51:57,718 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 01:51:57,719 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 01:51:57,720 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 01:51:57,721 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 01:51:57,723 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 01:51:57,724 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 01:51:57,724 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 01:51:57,725 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 01:51:57,726 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 01:51:57,726 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 01:51:57,770 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 01:51:57,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:51:57,989 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:51:57,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:57 WrapperNode [2021-11-23 01:51:57,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:51:57,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:51:57,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:51:57,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:51:57,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:57" (1/1) ... [2021-11-23 01:51:58,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:57" (1/1) ... [2021-11-23 01:51:58,193 INFO L137 Inliner]: procedures = 679, calls = 1045, calls flagged for inlining = 50, calls inlined = 5, statements flattened = 134 [2021-11-23 01:51:58,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:51:58,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:51:58,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:51:58,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:51:58,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:57" (1/1) ... [2021-11-23 01:51:58,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:57" (1/1) ... [2021-11-23 01:51:58,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:57" (1/1) ... [2021-11-23 01:51:58,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:57" (1/1) ... [2021-11-23 01:51:58,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:57" (1/1) ... [2021-11-23 01:51:58,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:57" (1/1) ... [2021-11-23 01:51:58,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:57" (1/1) ... [2021-11-23 01:51:58,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:51:58,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:51:58,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:51:58,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:51:58,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:57" (1/1) ... [2021-11-23 01:51:58,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:51:58,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:51:58,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:51:58,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:51:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:51:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:51:58,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:51:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2021-11-23 01:51:58,414 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2021-11-23 01:51:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:51:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2021-11-23 01:51:58,415 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2021-11-23 01:51:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:51:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:51:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_front [2021-11-23 01:51:58,415 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_front [2021-11-23 01:51:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:51:58,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:51:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2021-11-23 01:51:58,416 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2021-11-23 01:51:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 01:51:58,416 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 01:51:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:51:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:51:58,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:51:58,418 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-23 01:51:58,419 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-23 01:51:58,419 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2021-11-23 01:51:58,419 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2021-11-23 01:51:58,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:51:58,777 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:51:58,779 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:51:59,125 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:51:59,298 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:51:59,298 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 01:51:59,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:51:59 BoogieIcfgContainer [2021-11-23 01:51:59,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:51:59,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:51:59,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:51:59,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:51:59,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:51:55" (1/3) ... [2021-11-23 01:51:59,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e99ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:51:59, skipping insertion in model container [2021-11-23 01:51:59,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:51:57" (2/3) ... [2021-11-23 01:51:59,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e99ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:51:59, skipping insertion in model container [2021-11-23 01:51:59,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:51:59" (3/3) ... [2021-11-23 01:51:59,317 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_front_harness.i [2021-11-23 01:51:59,324 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:51:59,324 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 01:51:59,382 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:51:59,390 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 [2021-11-23 01:51:59,391 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 01:51:59,415 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 36 states have internal predecessors, (43), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-23 01:51:59,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 01:51:59,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:51:59,434 INFO L514 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:51:59,435 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:51:59,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:51:59,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1216931554, now seen corresponding path program 1 times [2021-11-23 01:51:59,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:51:59,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934006668] [2021-11-23 01:51:59,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:51:59,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:51:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:52:00,175 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-23 01:52:00,177 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:52:00,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934006668] [2021-11-23 01:52:00,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934006668] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 01:52:00,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543269926] [2021-11-23 01:52:00,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:52:00,183 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:52:00,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:52:00,186 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:52:00,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 01:52:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:52:00,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-23 01:52:00,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:52:00,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-23 01:52:00,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-23 01:52:00,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 41 [2021-11-23 01:52:00,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:00,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 43 [2021-11-23 01:52:05,505 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-23 01:52:05,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 01:52:05,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543269926] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:52:05,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 01:52:05,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2021-11-23 01:52:05,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781683093] [2021-11-23 01:52:05,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:52:05,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 01:52:05,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:52:05,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 01:52:05,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-23 01:52:05,545 INFO L87 Difference]: Start difference. First operand has 69 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 36 states have internal predecessors, (43), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 5 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2021-11-23 01:52:05,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:52:05,937 INFO L93 Difference]: Finished difference Result 147 states and 212 transitions. [2021-11-23 01:52:05,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 01:52:05,944 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 5 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 52 [2021-11-23 01:52:05,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:52:05,957 INFO L225 Difference]: With dead ends: 147 [2021-11-23 01:52:05,958 INFO L226 Difference]: Without dead ends: 101 [2021-11-23 01:52:05,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 12 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-11-23 01:52:05,974 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 13 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:52:05,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 286 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 56 Unchecked, 0.1s Time] [2021-11-23 01:52:05,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-23 01:52:06,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 90. [2021-11-23 01:52:06,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 45 states have (on average 1.2) internal successors, (54), 47 states have internal predecessors, (54), 33 states have call successors, (33), 12 states have call predecessors, (33), 11 states have return successors, (33), 30 states have call predecessors, (33), 32 states have call successors, (33) [2021-11-23 01:52:06,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 120 transitions. [2021-11-23 01:52:06,036 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 120 transitions. Word has length 52 [2021-11-23 01:52:06,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:52:06,037 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 120 transitions. [2021-11-23 01:52:06,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 5 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2021-11-23 01:52:06,038 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 120 transitions. [2021-11-23 01:52:06,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 01:52:06,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:52:06,042 INFO L514 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:52:06,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 01:52:06,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-23 01:52:06,258 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:52:06,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:52:06,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1311656922, now seen corresponding path program 1 times [2021-11-23 01:52:06,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:52:06,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769872885] [2021-11-23 01:52:06,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:52:06,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:52:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:52:06,454 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 01:52:06,456 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:52:06,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769872885] [2021-11-23 01:52:06,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769872885] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 01:52:06,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357194497] [2021-11-23 01:52:06,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:52:06,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:52:06,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:52:06,459 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:52:06,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fc027c-b421-4556-b473-db220eddc544/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 01:52:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:52:06,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-23 01:52:06,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:52:06,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 01:52:06,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:06,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-23 01:52:06,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:06,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-23 01:52:07,025 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 01:52:07,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 01:52:07,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 88 [2021-11-23 01:52:07,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 75 [2021-11-23 01:52:07,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,264 INFO L354 Elim1Store]: treesize reduction 264, result has 14.8 percent of original size [2021-11-23 01:52:07,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 185 treesize of output 139 [2021-11-23 01:52:07,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:07,351 INFO L354 Elim1Store]: treesize reduction 310, result has 15.8 percent of original size [2021-11-23 01:52:07,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 178 treesize of output 160 [2021-11-23 01:52:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-23 01:52:15,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 01:52:37,233 WARN L227 SmtUtils]: Spent 10.33s on a formula simplification that was a NOOP. DAG size: 65 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:52:47,630 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-23 01:52:47,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 212930 treesize of output 212242 [2021-11-23 01:53:00,391 WARN L227 SmtUtils]: Spent 12.76s on a formula simplification. DAG size of input: 1188 DAG size of output: 1188 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:53:00,598 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-23 01:53:00,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1928314 treesize of output 1923134 [2021-11-23 01:54:22,387 WARN L227 SmtUtils]: Spent 1.36m on a formula simplification. DAG size of input: 2361 DAG size of output: 2355 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:54:22,491 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 01:54:22,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [602339638] [2021-11-23 01:54:22,550 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2021-11-23 01:54:22,550 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 01:54:22,555 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 01:54:22,562 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 01:54:22,562 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 01:54:22,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:22,707 INFO L354 Elim1Store]: treesize reduction 44, result has 42.9 percent of original size [2021-11-23 01:54:22,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 58 [2021-11-23 01:54:22,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:22,818 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-23 01:54:22,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 73 [2021-11-23 01:54:23,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 77 [2021-11-23 01:54:23,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2021-11-23 01:54:23,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 77 [2021-11-23 01:54:23,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2021-11-23 01:54:23,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,547 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:54:23,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,555 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:54:23,575 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 01:54:23,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 103 [2021-11-23 01:54:23,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,688 INFO L354 Elim1Store]: treesize reduction 50, result has 47.9 percent of original size [2021-11-23 01:54:23,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 74 [2021-11-23 01:54:23,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,775 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:54:23,800 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 01:54:23,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 103 [2021-11-23 01:54:23,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 7 [2021-11-23 01:54:23,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 28 [2021-11-23 01:54:23,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:23,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,067 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-23 01:54:24,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 47 treesize of output 85 [2021-11-23 01:54:24,089 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-11-23 01:54:24,092 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-11-23 01:54:24,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,298 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:54:24,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:54:24,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:24,306 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:54:24,658 INFO L354 Elim1Store]: treesize reduction 268, result has 24.9 percent of original size [2021-11-23 01:54:24,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 457 treesize of output 485 [2021-11-23 01:54:25,148 INFO L354 Elim1Store]: treesize reduction 108, result has 48.8 percent of original size [2021-11-23 01:54:25,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 524 treesize of output 614 [2021-11-23 01:54:25,553 INFO L354 Elim1Store]: treesize reduction 60, result has 61.3 percent of original size [2021-11-23 01:54:25,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 608 treesize of output 689 [2021-11-23 01:54:25,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,606 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:54:25,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:54:25,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:25,614 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:54:26,024 INFO L354 Elim1Store]: treesize reduction 370, result has 20.4 percent of original size [2021-11-23 01:54:26,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 689 treesize of output 711 [2021-11-23 01:54:26,165 INFO L354 Elim1Store]: treesize reduction 118, result has 17.5 percent of original size [2021-11-23 01:54:26,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 756 treesize of output 727 [2021-11-23 01:54:26,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:26,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:26,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 724 treesize of output 711 [2021-11-23 01:54:26,360 INFO L354 Elim1Store]: treesize reduction 71, result has 21.1 percent of original size [2021-11-23 01:54:26,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 712 treesize of output 660