./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur --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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:33:46,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:33:46,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:33:46,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:33:46,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:33:46,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:33:46,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:33:46,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:33:46,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:33:46,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:33:46,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:33:46,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:33:46,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:33:46,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:33:46,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:33:46,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:33:46,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:33:46,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:33:46,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:33:46,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:33:46,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:33:46,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:33:46,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:33:46,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:33:46,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:33:46,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:33:46,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:33:46,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:33:46,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:33:46,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:33:46,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:33:46,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:33:46,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:33:46,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:33:46,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:33:46,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:33:46,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:33:46,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:33:46,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:33:46,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:33:46,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:33:46,179 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:33:46,218 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:33:46,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:33:46,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:33:46,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:33:46,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:33:46,220 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:33:46,220 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:33:46,221 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:33:46,221 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:33:46,221 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:33:46,222 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:33:46,222 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:33:46,223 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:33:46,223 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:33:46,223 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:33:46,223 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:33:46,223 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:33:46,224 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:33:46,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:33:46,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:33:46,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:33:46,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:33:46,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:33:46,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:33:46,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:33:46,226 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:33:46,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:33:46,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:33:46,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:33:46,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:33:46,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:33:46,228 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:33:46,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:33:46,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:33:46,229 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:33:46,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:33:46,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:33:46,229 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:33:46,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2022-11-26 00:33:46,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:33:46,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:33:46,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:33:46,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:33:46,593 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:33:46,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2022-11-26 00:33:49,698 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:33:50,253 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:33:50,254 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2022-11-26 00:33:50,304 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/data/6c39e46c8/c8360fc047694393b57d9f3e05f3618d/FLAG19104b155 [2022-11-26 00:33:50,323 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/data/6c39e46c8/c8360fc047694393b57d9f3e05f3618d [2022-11-26 00:33:50,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:33:50,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:33:50,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:33:50,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:33:50,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:33:50,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:33:50" (1/1) ... [2022-11-26 00:33:50,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39ab4c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:50, skipping insertion in model container [2022-11-26 00:33:50,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:33:50" (1/1) ... [2022-11-26 00:33:50,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:33:50,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:33:50,804 WARN L237 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_155dd761-3d17-4ebc-b9c0-4d340abcf109/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2022-11-26 00:33:50,813 WARN L237 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_155dd761-3d17-4ebc-b9c0-4d340abcf109/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2022-11-26 00:33:51,811 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:33:51,914 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:51,924 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:51,925 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:51,925 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:51,926 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:51,927 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:51,930 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:51,949 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:51,950 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:51,950 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:51,952 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:51,953 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:51,955 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:51,956 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:51,960 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:51,962 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:51,962 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,066 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:33:52,067 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:33:52,068 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:33:52,073 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:33:52,076 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:33:52,077 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:33:52,459 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:33:52,461 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:33:52,462 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:33:52,463 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:33:52,464 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:33:52,466 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:33:52,467 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:33:52,468 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:33:52,469 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:33:52,470 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:33:52,471 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:33:52,664 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,664 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,670 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,673 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,675 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,676 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,678 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,680 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,684 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,684 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,684 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,686 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,686 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,686 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,731 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:33:52,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:33:52,778 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:33:52,792 WARN L237 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_155dd761-3d17-4ebc-b9c0-4d340abcf109/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2022-11-26 00:33:52,793 WARN L237 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_155dd761-3d17-4ebc-b9c0-4d340abcf109/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2022-11-26 00:33:52,828 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:33:52,842 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,845 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,846 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,846 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,847 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,847 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,849 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,855 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,855 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,856 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,857 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,858 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,859 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,860 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,860 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,861 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,861 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,868 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:33:52,869 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:33:52,870 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:33:52,873 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:33:52,875 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:33:52,875 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:33:52,899 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:33:52,900 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:33:52,901 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:33:52,902 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:33:52,903 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:33:52,904 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:33:52,905 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:33:52,906 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:33:52,906 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:33:52,907 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:33:52,907 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:33:52,947 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,947 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,949 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,951 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,953 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,954 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,956 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:33:52,957 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,959 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,959 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,960 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,960 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,961 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,961 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:33:52,977 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:33:52,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:33:53,197 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:33:53,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53 WrapperNode [2022-11-26 00:33:53,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:33:53,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:33:53,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:33:53,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:33:53,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53" (1/1) ... [2022-11-26 00:33:53,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53" (1/1) ... [2022-11-26 00:33:53,363 INFO L138 Inliner]: procedures = 691, calls = 1681, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 648 [2022-11-26 00:33:53,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:33:53,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:33:53,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:33:53,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:33:53,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53" (1/1) ... [2022-11-26 00:33:53,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53" (1/1) ... [2022-11-26 00:33:53,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53" (1/1) ... [2022-11-26 00:33:53,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53" (1/1) ... [2022-11-26 00:33:53,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53" (1/1) ... [2022-11-26 00:33:53,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53" (1/1) ... [2022-11-26 00:33:53,422 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53" (1/1) ... [2022-11-26 00:33:53,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53" (1/1) ... [2022-11-26 00:33:53,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:33:53,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:33:53,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:33:53,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:33:53,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53" (1/1) ... [2022-11-26 00:33:53,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:33:53,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:53,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:33:53,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:33:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:33:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-26 00:33:53,506 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-26 00:33:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-26 00:33:53,506 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-26 00:33:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-26 00:33:53,506 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-26 00:33:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:33:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-26 00:33:53,506 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-26 00:33:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:33:53,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:33:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:33:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:33:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:33:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-26 00:33:53,507 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-26 00:33:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:33:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:33:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-26 00:33:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-26 00:33:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-26 00:33:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-26 00:33:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-26 00:33:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-26 00:33:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:33:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:33:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-26 00:33:53,509 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-26 00:33:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:33:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:33:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:33:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-26 00:33:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-26 00:33:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-26 00:33:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-26 00:33:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-26 00:33:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-26 00:33:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:33:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-26 00:33:53,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-26 00:33:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:33:53,931 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:33:53,936 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:33:55,026 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:33:55,218 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:33:55,219 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:33:55,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:55 BoogieIcfgContainer [2022-11-26 00:33:55,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:33:55,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:33:55,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:33:55,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:33:55,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:33:50" (1/3) ... [2022-11-26 00:33:55,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136564e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:55, skipping insertion in model container [2022-11-26 00:33:55,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:53" (2/3) ... [2022-11-26 00:33:55,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136564e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:55, skipping insertion in model container [2022-11-26 00:33:55,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:55" (3/3) ... [2022-11-26 00:33:55,234 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2022-11-26 00:33:55,255 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:33:55,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:33:55,347 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:33:55,358 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3768b1fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:33:55,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:33:55,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-26 00:33:55,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-26 00:33:55,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:55,375 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:55,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:33:55,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:55,384 INFO L85 PathProgramCache]: Analyzing trace with hash -333435140, now seen corresponding path program 1 times [2022-11-26 00:33:55,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:55,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657523916] [2022-11-26 00:33:55,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:55,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:56,333 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-26 00:33:56,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:56,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657523916] [2022-11-26 00:33:56,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657523916] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:33:56,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828402140] [2022-11-26 00:33:56,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:56,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:56,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:56,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:33:56,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:33:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:56,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 1985 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:33:56,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:33:57,053 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-26 00:33:57,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:33:57,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828402140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:57,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:33:57,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-26 00:33:57,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854197156] [2022-11-26 00:33:57,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:57,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:33:57,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:57,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:33:57,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:57,110 INFO L87 Difference]: Start difference. First operand has 151 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-26 00:33:57,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:57,632 INFO L93 Difference]: Finished difference Result 273 states and 398 transitions. [2022-11-26 00:33:57,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:33:57,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 54 [2022-11-26 00:33:57,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:57,647 INFO L225 Difference]: With dead ends: 273 [2022-11-26 00:33:57,648 INFO L226 Difference]: Without dead ends: 151 [2022-11-26 00:33:57,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:33:57,668 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 31 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:57,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 582 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:33:57,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-26 00:33:57,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-11-26 00:33:57,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 73 states have (on average 1.1232876712328768) internal successors, (82), 75 states have internal predecessors, (82), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2022-11-26 00:33:57,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 211 transitions. [2022-11-26 00:33:57,758 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 211 transitions. Word has length 54 [2022-11-26 00:33:57,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:57,760 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 211 transitions. [2022-11-26 00:33:57,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-26 00:33:57,761 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 211 transitions. [2022-11-26 00:33:57,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-26 00:33:57,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:57,767 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 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] [2022-11-26 00:33:57,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:33:57,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-26 00:33:57,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:33:57,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:57,978 INFO L85 PathProgramCache]: Analyzing trace with hash 211094557, now seen corresponding path program 1 times [2022-11-26 00:33:57,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:57,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143038100] [2022-11-26 00:33:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:57,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:58,118 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:33:58,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1433980192] [2022-11-26 00:33:58,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:58,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:58,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:58,121 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:33:58,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:33:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:58,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 2117 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:33:58,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:33:58,786 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-26 00:33:58,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:33:58,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:58,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143038100] [2022-11-26 00:33:58,788 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:33:58,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433980192] [2022-11-26 00:33:58,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433980192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:58,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:58,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:58,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976710165] [2022-11-26 00:33:58,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:58,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:33:58,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:58,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:33:58,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:33:58,801 INFO L87 Difference]: Start difference. First operand 151 states and 211 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-26 00:33:59,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:59,535 INFO L93 Difference]: Finished difference Result 278 states and 397 transitions. [2022-11-26 00:33:59,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:33:59,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 63 [2022-11-26 00:33:59,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:59,539 INFO L225 Difference]: With dead ends: 278 [2022-11-26 00:33:59,539 INFO L226 Difference]: Without dead ends: 161 [2022-11-26 00:33:59,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:33:59,542 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 36 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:59,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 889 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:33:59,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-26 00:33:59,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-26 00:33:59,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 79 states have internal predecessors, (86), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2022-11-26 00:33:59,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 225 transitions. [2022-11-26 00:33:59,565 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 225 transitions. Word has length 63 [2022-11-26 00:33:59,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:59,566 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 225 transitions. [2022-11-26 00:33:59,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-26 00:33:59,566 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 225 transitions. [2022-11-26 00:33:59,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-26 00:33:59,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:59,569 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:59,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:33:59,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-26 00:33:59,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:33:59,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:59,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1014181917, now seen corresponding path program 1 times [2022-11-26 00:33:59,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:59,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459148027] [2022-11-26 00:33:59,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:59,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:59,913 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:33:59,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1046520045] [2022-11-26 00:33:59,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:59,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:59,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:59,919 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:33:59,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155dd761-3d17-4ebc-b9c0-4d340abcf109/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:34:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:00,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 2381 conjuncts, 292 conjunts are in the unsatisfiable core [2022-11-26 00:34:00,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:34:00,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-26 00:34:01,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-26 00:34:01,631 INFO L350 Elim1Store]: Elim1 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 34 treesize of output 36 [2022-11-26 00:36:54,744 WARN L233 SmtUtils]: Spent 2.86m on a formula simplification. DAG size of input: 109 DAG size of output: 62 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:36:54,745 INFO L321 Elim1Store]: treesize reduction 202, result has 38.6 percent of original size [2022-11-26 00:36:54,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 196 treesize of output 337 [2022-11-26 00:36:54,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:54,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:54,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:54,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 216 [2022-11-26 00:36:54,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:54,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 153