./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- 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-2329fc7 [2022-12-14 05:14:51,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:14:51,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:14:51,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:14:51,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:14:51,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:14:51,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:14:51,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:14:51,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:14:51,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:14:51,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:14:51,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:14:51,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:14:51,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:14:51,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:14:51,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:14:51,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:14:51,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:14:51,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:14:51,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:14:51,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:14:51,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:14:51,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:14:51,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:14:51,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:14:51,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:14:51,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:14:51,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:14:51,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:14:51,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:14:51,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:14:51,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:14:51,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:14:51,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:14:51,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:14:51,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:14:51,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:14:51,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:14:51,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:14:51,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:14:51,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:14:51,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 05:14:51,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:14:51,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:14:51,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:14:51,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:14:51,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:14:51,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:14:51,307 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:14:51,307 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:14:51,307 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:14:51,307 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:14:51,307 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:14:51,308 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:14:51,308 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:14:51,308 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:14:51,308 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:14:51,308 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:14:51,308 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:14:51,309 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:14:51,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 05:14:51,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 05:14:51,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:14:51,309 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:14:51,310 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:14:51,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:14:51,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:14:51,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:14:51,310 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 05:14:51,310 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 05:14:51,310 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 05:14:51,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:14:51,311 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 05:14:51,311 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:14:51,311 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:14:51,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:14:51,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:14:51,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:14:51,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:14:51,311 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:14:51,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:14:51,312 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:14:51,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:14:51,312 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:14:51,312 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_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2022-12-14 05:14:51,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:14:51,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:14:51,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:14:51,534 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:14:51,534 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:14:51,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-12-14 05:14:54,091 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:14:54,337 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:14:54,338 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-12-14 05:14:54,354 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/data/0712ddf20/3bf910db19ec4b8fba14021182a81640/FLAG631c20e3e [2022-12-14 05:14:54,366 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/data/0712ddf20/3bf910db19ec4b8fba14021182a81640 [2022-12-14 05:14:54,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:14:54,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:14:54,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:14:54,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:14:54,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:14:54,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:14:54" (1/1) ... [2022-12-14 05:14:54,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31966c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:14:54, skipping insertion in model container [2022-12-14 05:14:54,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:14:54" (1/1) ... [2022-12-14 05:14:54,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:14:54,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:14:54,532 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:14:54,946 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_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-12-14 05:14:54,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:14:54,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:14:54,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:14:54,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:14:54,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:14:54,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:14:54,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:14:54,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:14:54,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:14:54,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:14:54,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:14:54,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:14:54,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:14:54,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:14:54,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:14:54,996 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-12-14 05:14:54,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@161dbe95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:14:54, skipping insertion in model container [2022-12-14 05:14:54,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:14:54,998 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 05:14:54,999 INFO L158 Benchmark]: Toolchain (without parser) took 629.41ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 82.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 05:14:55,000 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory was 110.4MB in the beginning and 110.2MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:14:55,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.65ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 82.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 05:14:55,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory was 110.4MB in the beginning and 110.2MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.65ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 82.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1691]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- 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-2329fc7 [2022-12-14 05:14:56,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:14:56,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:14:56,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:14:56,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:14:56,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:14:56,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:14:56,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:14:56,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:14:56,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:14:56,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:14:56,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:14:56,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:14:56,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:14:56,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:14:56,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:14:56,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:14:56,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:14:56,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:14:56,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:14:56,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:14:56,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:14:56,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:14:56,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:14:56,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:14:56,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:14:56,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:14:56,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:14:56,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:14:56,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:14:56,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:14:56,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:14:56,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:14:56,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:14:56,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:14:56,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:14:56,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:14:56,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:14:56,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:14:56,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:14:56,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:14:56,397 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 05:14:56,413 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:14:56,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:14:56,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:14:56,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:14:56,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:14:56,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:14:56,415 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:14:56,415 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:14:56,415 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:14:56,415 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:14:56,415 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:14:56,416 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:14:56,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 05:14:56,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 05:14:56,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:14:56,417 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:14:56,417 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:14:56,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:14:56,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:14:56,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:14:56,417 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 05:14:56,418 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 05:14:56,418 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 05:14:56,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:14:56,418 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 05:14:56,418 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 05:14:56,419 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 05:14:56,419 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:14:56,419 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:14:56,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:14:56,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 05:14:56,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:14:56,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:14:56,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:14:56,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:14:56,420 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 05:14:56,420 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 05:14:56,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:14:56,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 05:14:56,421 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2022-12-14 05:14:56,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:14:56,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:14:56,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:14:56,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:14:56,659 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:14:56,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-12-14 05:14:59,287 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:14:59,516 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:14:59,516 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-12-14 05:14:59,529 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/data/f8b6349de/da3a097618894eed835083de00a25523/FLAG81f62cd63 [2022-12-14 05:14:59,540 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/data/f8b6349de/da3a097618894eed835083de00a25523 [2022-12-14 05:14:59,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:14:59,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:14:59,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:14:59,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:14:59,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:14:59,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:14:59" (1/1) ... [2022-12-14 05:14:59,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b4830d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:14:59, skipping insertion in model container [2022-12-14 05:14:59,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:14:59" (1/1) ... [2022-12-14 05:14:59,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:14:59,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:14:59,686 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:15:00,041 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_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-12-14 05:15:00,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:15:00,079 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 05:15:00,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:15:00,089 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:15:00,110 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_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-12-14 05:15:00,112 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,112 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,112 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,112 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:15:00,124 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:15:00,132 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:15:00,156 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_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-12-14 05:15:00,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:15:00,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:15:00,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:15:00,230 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:15:00,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00 WrapperNode [2022-12-14 05:15:00,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:15:00,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:15:00,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:15:00,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:15:00,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00" (1/1) ... [2022-12-14 05:15:00,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00" (1/1) ... [2022-12-14 05:15:00,273 INFO L138 Inliner]: procedures = 473, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 141 [2022-12-14 05:15:00,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:15:00,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:15:00,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:15:00,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:15:00,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00" (1/1) ... [2022-12-14 05:15:00,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00" (1/1) ... [2022-12-14 05:15:00,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00" (1/1) ... [2022-12-14 05:15:00,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00" (1/1) ... [2022-12-14 05:15:00,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00" (1/1) ... [2022-12-14 05:15:00,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00" (1/1) ... [2022-12-14 05:15:00,298 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00" (1/1) ... [2022-12-14 05:15:00,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00" (1/1) ... [2022-12-14 05:15:00,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:15:00,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:15:00,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:15:00,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:15:00,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00" (1/1) ... [2022-12-14 05:15:00,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:15:00,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:00,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:15:00,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:15:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 05:15:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:15:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 05:15:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-14 05:15:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 05:15:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 05:15:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:15:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:15:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:15:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:15:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 05:15:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-14 05:15:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-14 05:15:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:15:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 05:15:00,366 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 05:15:00,617 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:15:00,619 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:15:01,097 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:15:01,138 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:15:01,139 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:15:01,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:15:01 BoogieIcfgContainer [2022-12-14 05:15:01,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:15:01,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:15:01,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:15:01,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:15:01,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:14:59" (1/3) ... [2022-12-14 05:15:01,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229f7547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:15:01, skipping insertion in model container [2022-12-14 05:15:01,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:00" (2/3) ... [2022-12-14 05:15:01,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229f7547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:15:01, skipping insertion in model container [2022-12-14 05:15:01,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:15:01" (3/3) ... [2022-12-14 05:15:01,147 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-12-14 05:15:01,161 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:15:01,162 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2022-12-14 05:15:01,162 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 05:15:01,231 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 05:15:01,262 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 05:15:01,276 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 225 places, 225 transitions, 466 flow [2022-12-14 05:15:01,279 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 225 places, 225 transitions, 466 flow [2022-12-14 05:15:01,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 225 transitions, 466 flow [2022-12-14 05:15:01,373 INFO L130 PetriNetUnfolder]: 8/282 cut-off events. [2022-12-14 05:15:01,373 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 05:15:01,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 282 events. 8/282 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 732 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 142. Up to 4 conditions per place. [2022-12-14 05:15:01,382 INFO L119 LiptonReduction]: Number of co-enabled transitions 7144 [2022-12-14 05:16:35,271 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 121 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:17:05,350 WARN L233 SmtUtils]: Spent 9.42s on a formula simplification. DAG size of input: 143 DAG size of output: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:17:16,785 WARN L233 SmtUtils]: Spent 6.90s on a formula simplification. DAG size of input: 143 DAG size of output: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:17:25,949 WARN L233 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 141 DAG size of output: 133 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:17:35,111 WARN L233 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 141 DAG size of output: 133 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:18:44,157 WARN L233 SmtUtils]: Spent 1.02m on a formula simplification. DAG size of input: 185 DAG size of output: 184 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:19:10,052 WARN L233 SmtUtils]: Spent 25.89s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:20:19,382 WARN L233 SmtUtils]: Spent 1.16m on a formula simplification. DAG size of input: 185 DAG size of output: 184 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:20:49,635 WARN L233 SmtUtils]: Spent 30.25s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:21:09,295 WARN L233 SmtUtils]: Spent 7.70s on a formula simplification. DAG size of input: 143 DAG size of output: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:21:26,727 WARN L233 SmtUtils]: Spent 13.70s on a formula simplification. DAG size of input: 143 DAG size of output: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:21:32,932 WARN L233 SmtUtils]: Spent 6.20s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:23:40,456 WARN L233 SmtUtils]: Spent 2.03m on a formula simplification. DAG size of input: 254 DAG size of output: 249 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:24:43,113 WARN L233 SmtUtils]: Spent 1.04m on a formula simplification that was a NOOP. DAG size: 245 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:26:49,315 WARN L233 SmtUtils]: Spent 2.10m on a formula simplification. DAG size of input: 254 DAG size of output: 249 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:27:57,142 WARN L233 SmtUtils]: Spent 1.13m on a formula simplification that was a NOOP. DAG size: 245 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:28:36,175 WARN L233 SmtUtils]: Spent 38.75s on a formula simplification. DAG size of input: 213 DAG size of output: 212 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:28:51,747 WARN L233 SmtUtils]: Spent 15.57s on a formula simplification that was a NOOP. DAG size: 208 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:29:18,850 WARN L233 SmtUtils]: Spent 27.10s on a formula simplification. DAG size of input: 213 DAG size of output: 212 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:29:31,344 WARN L233 SmtUtils]: Spent 12.49s on a formula simplification that was a NOOP. DAG size: 208 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:29:31,386 INFO L134 LiptonReduction]: Checked pairs total: 34356 [2022-12-14 05:29:31,386 INFO L136 LiptonReduction]: Total number of compositions: 249 [2022-12-14 05:29:31,392 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 92 transitions, 200 flow [2022-12-14 05:29:31,531 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5499 states, 4205 states have (on average 3.660166468489893) internal successors, (15391), 5498 states have internal predecessors, (15391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:31,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:29:31,551 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@3c792e88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:29:31,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-12-14 05:29:31,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 5499 states, 4205 states have (on average 3.660166468489893) internal successors, (15391), 5498 states have internal predecessors, (15391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:31,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 05:29:31,565 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:29:31,566 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 05:29:31,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:29:31,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:29:31,570 INFO L85 PathProgramCache]: Analyzing trace with hash 831, now seen corresponding path program 1 times [2022-12-14 05:29:31,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:29:31,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075196264] [2022-12-14 05:29:31,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:29:31,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:31,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:29:31,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:29:31,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 05:29:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:29:31,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 05:29:31,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:29:31,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:29:31,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:29:31,691 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:29:31,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075196264] [2022-12-14 05:29:31,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075196264] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:29:31,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:29:31,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 05:29:31,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500330183] [2022-12-14 05:29:31,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:29:31,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:29:31,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:29:31,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:29:31,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:29:31,741 INFO L87 Difference]: Start difference. First operand has 5499 states, 4205 states have (on average 3.660166468489893) internal successors, (15391), 5498 states have internal predecessors, (15391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:33,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:29:33,269 INFO L93 Difference]: Finished difference Result 4625 states and 12787 transitions. [2022-12-14 05:29:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:29:33,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-12-14 05:29:33,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:29:33,300 INFO L225 Difference]: With dead ends: 4625 [2022-12-14 05:29:33,300 INFO L226 Difference]: Without dead ends: 4619 [2022-12-14 05:29:33,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:29:33,303 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:29:33,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 05:29:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4619 states. [2022-12-14 05:29:33,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4619 to 4619. [2022-12-14 05:29:33,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4619 states, 3631 states have (on average 3.517763701459653) internal successors, (12773), 4618 states have internal predecessors, (12773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:33,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4619 states to 4619 states and 12773 transitions. [2022-12-14 05:29:33,513 INFO L78 Accepts]: Start accepts. Automaton has 4619 states and 12773 transitions. Word has length 1 [2022-12-14 05:29:33,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:29:33,514 INFO L495 AbstractCegarLoop]: Abstraction has 4619 states and 12773 transitions. [2022-12-14 05:29:33,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:33,514 INFO L276 IsEmpty]: Start isEmpty. Operand 4619 states and 12773 transitions. [2022-12-14 05:29:33,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 05:29:33,515 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:29:33,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 05:29:33,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:29:33,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:33,717 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:29:33,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:29:33,717 INFO L85 PathProgramCache]: Analyzing trace with hash 26531, now seen corresponding path program 1 times [2022-12-14 05:29:33,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:29:33,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834433145] [2022-12-14 05:29:33,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:29:33,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:33,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:29:33,720 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:29:33,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 05:29:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:29:33,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:29:33,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:29:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:29:34,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:29:34,008 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:29:34,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834433145] [2022-12-14 05:29:34,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [834433145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:29:34,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:29:34,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:29:34,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75262634] [2022-12-14 05:29:34,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:29:34,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:29:34,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:29:34,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:29:34,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:34,012 INFO L87 Difference]: Start difference. First operand 4619 states and 12773 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:35,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:29:35,716 INFO L93 Difference]: Finished difference Result 4631 states and 12784 transitions. [2022-12-14 05:29:35,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:29:35,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-12-14 05:29:35,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:29:35,734 INFO L225 Difference]: With dead ends: 4631 [2022-12-14 05:29:35,734 INFO L226 Difference]: Without dead ends: 4631 [2022-12-14 05:29:35,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:35,735 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 14 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 05:29:35,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 48 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 05:29:35,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2022-12-14 05:29:35,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 4617. [2022-12-14 05:29:35,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4617 states, 3631 states have (on average 3.5172128890112915) internal successors, (12771), 4616 states have internal predecessors, (12771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:35,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 12771 transitions. [2022-12-14 05:29:35,872 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 12771 transitions. Word has length 2 [2022-12-14 05:29:35,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:29:35,872 INFO L495 AbstractCegarLoop]: Abstraction has 4617 states and 12771 transitions. [2022-12-14 05:29:35,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:35,872 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 12771 transitions. [2022-12-14 05:29:35,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 05:29:35,873 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:29:35,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 05:29:35,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 05:29:36,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:36,076 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:29:36,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:29:36,077 INFO L85 PathProgramCache]: Analyzing trace with hash 821477, now seen corresponding path program 1 times [2022-12-14 05:29:36,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:29:36,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806817469] [2022-12-14 05:29:36,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:29:36,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:36,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:29:36,084 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:29:36,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 05:29:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:29:36,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:29:36,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:29:36,295 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 7 [2022-12-14 05:29:36,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:29:36,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:29:36,322 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:29:36,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806817469] [2022-12-14 05:29:36,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806817469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:29:36,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:29:36,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:29:36,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125974256] [2022-12-14 05:29:36,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:29:36,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:29:36,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:29:36,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:29:36,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:36,325 INFO L87 Difference]: Start difference. First operand 4617 states and 12771 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:37,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:29:37,783 INFO L93 Difference]: Finished difference Result 4472 states and 12362 transitions. [2022-12-14 05:29:37,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:29:37,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 05:29:37,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:29:37,797 INFO L225 Difference]: With dead ends: 4472 [2022-12-14 05:29:37,797 INFO L226 Difference]: Without dead ends: 4472 [2022-12-14 05:29:37,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:37,798 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 59 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:29:37,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 15 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 05:29:37,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4472 states. [2022-12-14 05:29:37,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4472 to 4472. [2022-12-14 05:29:37,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4472 states, 3536 states have (on average 3.4960407239819005) internal successors, (12362), 4471 states have internal predecessors, (12362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:37,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4472 states to 4472 states and 12362 transitions. [2022-12-14 05:29:37,954 INFO L78 Accepts]: Start accepts. Automaton has 4472 states and 12362 transitions. Word has length 3 [2022-12-14 05:29:37,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:29:37,954 INFO L495 AbstractCegarLoop]: Abstraction has 4472 states and 12362 transitions. [2022-12-14 05:29:37,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:37,955 INFO L276 IsEmpty]: Start isEmpty. Operand 4472 states and 12362 transitions. [2022-12-14 05:29:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 05:29:37,956 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:29:37,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 05:29:37,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 05:29:38,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:38,164 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:29:38,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:29:38,166 INFO L85 PathProgramCache]: Analyzing trace with hash 821478, now seen corresponding path program 1 times [2022-12-14 05:29:38,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:29:38,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490373056] [2022-12-14 05:29:38,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:29:38,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:38,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:29:38,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:29:38,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 05:29:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:29:38,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:29:38,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:29:38,336 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 [2022-12-14 05:29:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:29:38,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:29:38,374 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:29:38,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490373056] [2022-12-14 05:29:38,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490373056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:29:38,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:29:38,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:29:38,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549189471] [2022-12-14 05:29:38,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:29:38,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:29:38,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:29:38,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:29:38,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:38,376 INFO L87 Difference]: Start difference. First operand 4472 states and 12362 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:39,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:29:39,931 INFO L93 Difference]: Finished difference Result 3903 states and 10737 transitions. [2022-12-14 05:29:39,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:29:39,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 05:29:39,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:29:39,944 INFO L225 Difference]: With dead ends: 3903 [2022-12-14 05:29:39,944 INFO L226 Difference]: Without dead ends: 3903 [2022-12-14 05:29:39,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:39,945 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 44 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 05:29:39,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 21 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 05:29:39,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3903 states. [2022-12-14 05:29:40,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3903 to 3899. [2022-12-14 05:29:40,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3899 states, 3159 states have (on average 3.3979107312440644) internal successors, (10734), 3898 states have internal predecessors, (10734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 10734 transitions. [2022-12-14 05:29:40,014 INFO L78 Accepts]: Start accepts. Automaton has 3899 states and 10734 transitions. Word has length 3 [2022-12-14 05:29:40,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:29:40,014 INFO L495 AbstractCegarLoop]: Abstraction has 3899 states and 10734 transitions. [2022-12-14 05:29:40,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:40,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3899 states and 10734 transitions. [2022-12-14 05:29:40,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 05:29:40,015 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:29:40,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 05:29:40,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-12-14 05:29:40,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:40,217 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:29:40,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:29:40,218 INFO L85 PathProgramCache]: Analyzing trace with hash 813517, now seen corresponding path program 1 times [2022-12-14 05:29:40,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:29:40,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168709946] [2022-12-14 05:29:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:29:40,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:40,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:29:40,226 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:29:40,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 05:29:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:29:40,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 05:29:40,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:29:40,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:29:40,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 05:29:40,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:29:40,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:29:40,519 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:29:40,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168709946] [2022-12-14 05:29:40,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168709946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:29:40,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:29:40,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:29:40,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179144840] [2022-12-14 05:29:40,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:29:40,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:29:40,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:29:40,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:29:40,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:40,521 INFO L87 Difference]: Start difference. First operand 3899 states and 10734 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:41,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:29:41,565 INFO L93 Difference]: Finished difference Result 3875 states and 10688 transitions. [2022-12-14 05:29:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:29:41,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 05:29:41,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:29:41,576 INFO L225 Difference]: With dead ends: 3875 [2022-12-14 05:29:41,576 INFO L226 Difference]: Without dead ends: 3875 [2022-12-14 05:29:41,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:41,577 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 66 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:29:41,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 9 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 05:29:41,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3875 states. [2022-12-14 05:29:41,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3875 to 3875. [2022-12-14 05:29:41,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3875 states, 3149 states have (on average 3.394093362972372) internal successors, (10688), 3874 states have internal predecessors, (10688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:41,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3875 states to 3875 states and 10688 transitions. [2022-12-14 05:29:41,663 INFO L78 Accepts]: Start accepts. Automaton has 3875 states and 10688 transitions. Word has length 3 [2022-12-14 05:29:41,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:29:41,663 INFO L495 AbstractCegarLoop]: Abstraction has 3875 states and 10688 transitions. [2022-12-14 05:29:41,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:41,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3875 states and 10688 transitions. [2022-12-14 05:29:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 05:29:41,663 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:29:41,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 05:29:41,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 05:29:41,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:41,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:29:41,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:29:41,866 INFO L85 PathProgramCache]: Analyzing trace with hash 813518, now seen corresponding path program 1 times [2022-12-14 05:29:41,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:29:41,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607826039] [2022-12-14 05:29:41,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:29:41,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:41,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:29:41,890 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:29:41,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-14 05:29:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:29:42,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:29:42,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:29:42,174 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 05:29:42,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-14 05:29:42,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:29:42,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:29:42,214 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:29:42,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607826039] [2022-12-14 05:29:42,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607826039] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:29:42,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:29:42,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:29:42,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864961252] [2022-12-14 05:29:42,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:29:42,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:29:42,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:29:42,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:29:42,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:42,216 INFO L87 Difference]: Start difference. First operand 3875 states and 10688 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:43,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:29:43,937 INFO L93 Difference]: Finished difference Result 3855 states and 10645 transitions. [2022-12-14 05:29:43,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:29:43,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 05:29:43,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:29:43,954 INFO L225 Difference]: With dead ends: 3855 [2022-12-14 05:29:43,954 INFO L226 Difference]: Without dead ends: 3855 [2022-12-14 05:29:43,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:43,955 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 51 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 05:29:43,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 15 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 05:29:43,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2022-12-14 05:29:43,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3851. [2022-12-14 05:29:44,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3139 states have (on average 3.390251672507168) internal successors, (10642), 3850 states have internal predecessors, (10642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:44,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 10642 transitions. [2022-12-14 05:29:44,020 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 10642 transitions. Word has length 3 [2022-12-14 05:29:44,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:29:44,020 INFO L495 AbstractCegarLoop]: Abstraction has 3851 states and 10642 transitions. [2022-12-14 05:29:44,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:44,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 10642 transitions. [2022-12-14 05:29:44,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 05:29:44,021 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:29:44,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 05:29:44,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-14 05:29:44,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:44,221 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:29:44,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:29:44,222 INFO L85 PathProgramCache]: Analyzing trace with hash 25219981, now seen corresponding path program 1 times [2022-12-14 05:29:44,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:29:44,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421785878] [2022-12-14 05:29:44,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:29:44,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:44,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:29:44,224 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:29:44,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-14 05:29:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:29:44,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 05:29:44,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:29:44,354 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 7 [2022-12-14 05:29:44,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:29:44,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:29:44,418 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:29:44,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421785878] [2022-12-14 05:29:44,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421785878] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:29:44,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:29:44,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:29:44,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947498372] [2022-12-14 05:29:44,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:29:44,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:29:44,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:29:44,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:29:44,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:29:44,419 INFO L87 Difference]: Start difference. First operand 3851 states and 10642 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:46,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:29:48,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:29:48,339 INFO L93 Difference]: Finished difference Result 3233 states and 8728 transitions. [2022-12-14 05:29:48,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:29:48,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 05:29:48,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:29:48,354 INFO L225 Difference]: With dead ends: 3233 [2022-12-14 05:29:48,355 INFO L226 Difference]: Without dead ends: 3233 [2022-12-14 05:29:48,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 05:29:48,356 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 160 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:29:48,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 33 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 05:29:48,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2022-12-14 05:29:48,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 3089. [2022-12-14 05:29:48,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 2629 states have (on average 3.222137694941042) internal successors, (8471), 3088 states have internal predecessors, (8471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:48,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 8471 transitions. [2022-12-14 05:29:48,438 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 8471 transitions. Word has length 4 [2022-12-14 05:29:48,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:29:48,438 INFO L495 AbstractCegarLoop]: Abstraction has 3089 states and 8471 transitions. [2022-12-14 05:29:48,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:48,438 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 8471 transitions. [2022-12-14 05:29:48,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 05:29:48,438 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:29:48,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 05:29:48,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-14 05:29:48,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:48,639 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:29:48,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:29:48,640 INFO L85 PathProgramCache]: Analyzing trace with hash 25219982, now seen corresponding path program 1 times [2022-12-14 05:29:48,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:29:48,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880509845] [2022-12-14 05:29:48,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:29:48,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:48,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:29:48,642 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:29:48,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-14 05:29:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:29:48,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 05:29:48,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:29:48,849 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 [2022-12-14 05:29:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:29:48,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:29:48,981 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:29:48,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880509845] [2022-12-14 05:29:48,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1880509845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:29:48,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:29:48,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:29:48,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10979551] [2022-12-14 05:29:48,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:29:48,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:29:48,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:29:48,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:29:48,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:29:48,983 INFO L87 Difference]: Start difference. First operand 3089 states and 8471 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:53,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:29:53,431 INFO L93 Difference]: Finished difference Result 2297 states and 6009 transitions. [2022-12-14 05:29:53,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:29:53,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 05:29:53,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:29:53,444 INFO L225 Difference]: With dead ends: 2297 [2022-12-14 05:29:53,444 INFO L226 Difference]: Without dead ends: 2293 [2022-12-14 05:29:53,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 05:29:53,445 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 126 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:29:53,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 36 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 05:29:53,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2293 states. [2022-12-14 05:29:53,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2293 to 2287. [2022-12-14 05:29:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2287 states, 2058 states have (on average 2.9110787172011663) internal successors, (5991), 2286 states have internal predecessors, (5991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:53,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2287 states to 2287 states and 5991 transitions. [2022-12-14 05:29:53,490 INFO L78 Accepts]: Start accepts. Automaton has 2287 states and 5991 transitions. Word has length 4 [2022-12-14 05:29:53,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:29:53,490 INFO L495 AbstractCegarLoop]: Abstraction has 2287 states and 5991 transitions. [2022-12-14 05:29:53,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:53,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2287 states and 5991 transitions. [2022-12-14 05:29:53,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 05:29:53,491 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:29:53,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 05:29:53,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-14 05:29:53,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:53,692 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:29:53,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:29:53,694 INFO L85 PathProgramCache]: Analyzing trace with hash 789537196, now seen corresponding path program 1 times [2022-12-14 05:29:53,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:29:53,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881046747] [2022-12-14 05:29:53,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:29:53,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:53,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:29:53,699 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:29:53,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-14 05:29:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:29:53,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 05:29:53,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:29:53,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 45 [2022-12-14 05:29:54,035 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:29:54,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 73 treesize of output 93 [2022-12-14 05:29:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:29:54,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:29:54,067 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:29:54,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881046747] [2022-12-14 05:29:54,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881046747] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:29:54,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:29:54,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:29:54,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458817924] [2022-12-14 05:29:54,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:29:54,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:29:54,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:29:54,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:29:54,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:54,069 INFO L87 Difference]: Start difference. First operand 2287 states and 5991 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:56,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:29:56,759 INFO L93 Difference]: Finished difference Result 2598 states and 6835 transitions. [2022-12-14 05:29:56,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:29:56,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 05:29:56,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:29:56,769 INFO L225 Difference]: With dead ends: 2598 [2022-12-14 05:29:56,770 INFO L226 Difference]: Without dead ends: 2598 [2022-12-14 05:29:56,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:56,770 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 05:29:56,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 46 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 05:29:56,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2022-12-14 05:29:56,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2406. [2022-12-14 05:29:56,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2406 states, 2178 states have (on average 2.898530762167126) internal successors, (6313), 2405 states have internal predecessors, (6313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 6313 transitions. [2022-12-14 05:29:56,823 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 6313 transitions. Word has length 5 [2022-12-14 05:29:56,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:29:56,823 INFO L495 AbstractCegarLoop]: Abstraction has 2406 states and 6313 transitions. [2022-12-14 05:29:56,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:56,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 6313 transitions. [2022-12-14 05:29:56,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 05:29:56,824 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:29:56,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 05:29:56,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-14 05:29:57,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:57,025 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:29:57,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:29:57,026 INFO L85 PathProgramCache]: Analyzing trace with hash 781809614, now seen corresponding path program 1 times [2022-12-14 05:29:57,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:29:57,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310167735] [2022-12-14 05:29:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:29:57,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:57,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:29:57,032 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:29:57,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-14 05:29:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:29:57,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 05:29:57,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:29:57,225 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 [2022-12-14 05:29:57,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:29:57,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:29:57,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:29:57,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310167735] [2022-12-14 05:29:57,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310167735] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:29:57,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:29:57,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:29:57,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42447774] [2022-12-14 05:29:57,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:29:57,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:29:57,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:29:57,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:29:57,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:57,294 INFO L87 Difference]: Start difference. First operand 2406 states and 6313 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:59,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:29:59,011 INFO L93 Difference]: Finished difference Result 2123 states and 5525 transitions. [2022-12-14 05:29:59,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:29:59,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 05:29:59,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:29:59,017 INFO L225 Difference]: With dead ends: 2123 [2022-12-14 05:29:59,017 INFO L226 Difference]: Without dead ends: 2123 [2022-12-14 05:29:59,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:59,017 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 05:29:59,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 21 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 05:29:59,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2022-12-14 05:29:59,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 2118. [2022-12-14 05:29:59,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2118 states, 1918 states have (on average 2.87851929092805) internal successors, (5521), 2117 states have internal predecessors, (5521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:59,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2118 states to 2118 states and 5521 transitions. [2022-12-14 05:29:59,043 INFO L78 Accepts]: Start accepts. Automaton has 2118 states and 5521 transitions. Word has length 5 [2022-12-14 05:29:59,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:29:59,044 INFO L495 AbstractCegarLoop]: Abstraction has 2118 states and 5521 transitions. [2022-12-14 05:29:59,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:29:59,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2118 states and 5521 transitions. [2022-12-14 05:29:59,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 05:29:59,044 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:29:59,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 05:29:59,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-14 05:29:59,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:59,246 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:29:59,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:29:59,248 INFO L85 PathProgramCache]: Analyzing trace with hash 781809569, now seen corresponding path program 1 times [2022-12-14 05:29:59,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:29:59,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300459956] [2022-12-14 05:29:59,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:29:59,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:29:59,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:29:59,255 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:29:59,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-14 05:29:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:29:59,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:29:59,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:29:59,483 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 7 [2022-12-14 05:29:59,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:29:59,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:29:59,513 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:29:59,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300459956] [2022-12-14 05:29:59,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300459956] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:29:59,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:29:59,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:29:59,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459285937] [2022-12-14 05:29:59,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:29:59,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:29:59,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:29:59,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:29:59,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:29:59,515 INFO L87 Difference]: Start difference. First operand 2118 states and 5521 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:30:01,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:30:01,316 INFO L93 Difference]: Finished difference Result 2049 states and 5326 transitions. [2022-12-14 05:30:01,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:30:01,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 05:30:01,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:30:01,322 INFO L225 Difference]: With dead ends: 2049 [2022-12-14 05:30:01,322 INFO L226 Difference]: Without dead ends: 2049 [2022-12-14 05:30:01,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:30:01,323 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:30:01,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 15 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 05:30:01,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2022-12-14 05:30:01,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 2046. [2022-12-14 05:30:01,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 1853 states have (on average 2.8726389638424177) internal successors, (5323), 2045 states have internal predecessors, (5323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:30:01,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 5323 transitions. [2022-12-14 05:30:01,346 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 5323 transitions. Word has length 5 [2022-12-14 05:30:01,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:30:01,346 INFO L495 AbstractCegarLoop]: Abstraction has 2046 states and 5323 transitions. [2022-12-14 05:30:01,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:30:01,346 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 5323 transitions. [2022-12-14 05:30:01,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 05:30:01,346 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:30:01,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 05:30:01,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-14 05:30:01,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:30:01,548 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:30:01,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:30:01,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1294149140, now seen corresponding path program 1 times [2022-12-14 05:30:01,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:30:01,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315552225] [2022-12-14 05:30:01,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:30:01,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:30:01,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:30:01,551 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:30:01,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-14 05:30:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:30:01,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 05:30:01,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:30:01,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:30:01,795 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:30:01,795 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:30:01,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-12-14 05:30:01,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:30:01,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:30:01,902 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:30:01,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315552225] [2022-12-14 05:30:01,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315552225] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:30:01,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:30:01,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:30:01,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101209219] [2022-12-14 05:30:01,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:30:01,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:30:01,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:30:01,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:30:01,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:30:01,904 INFO L87 Difference]: Start difference. First operand 2046 states and 5323 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:30:04,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:30:04,292 INFO L93 Difference]: Finished difference Result 2293 states and 5994 transitions. [2022-12-14 05:30:04,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:30:04,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 05:30:04,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:30:04,299 INFO L225 Difference]: With dead ends: 2293 [2022-12-14 05:30:04,299 INFO L226 Difference]: Without dead ends: 2293 [2022-12-14 05:30:04,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:30:04,299 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 15 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:30:04,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 47 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 05:30:04,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2293 states. [2022-12-14 05:30:04,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2293 to 2165. [2022-12-14 05:30:04,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2165 states, 1973 states have (on average 2.894069944247339) internal successors, (5710), 2164 states have internal predecessors, (5710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:30:04,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 5710 transitions. [2022-12-14 05:30:04,333 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 5710 transitions. Word has length 6 [2022-12-14 05:30:04,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:30:04,333 INFO L495 AbstractCegarLoop]: Abstraction has 2165 states and 5710 transitions. [2022-12-14 05:30:04,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:30:04,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 5710 transitions. [2022-12-14 05:30:04,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 05:30:04,334 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:30:04,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 05:30:04,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-12-14 05:30:04,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:30:04,535 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 05:30:04,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:30:04,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1533704521, now seen corresponding path program 1 times [2022-12-14 05:30:04,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:30:04,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350808037] [2022-12-14 05:30:04,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:30:04,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:30:04,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:30:04,537 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:30:04,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a7efdc-ab68-418d-9f3c-ddca8cdc999c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-12-14 05:30:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:30:04,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 05:30:04,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:30:04,702 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 7 [2022-12-14 05:30:04,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:30:04,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:30:04,776 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:30:04,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350808037] [2022-12-14 05:30:04,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350808037] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:30:04,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:30:04,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:30:04,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578990260] [2022-12-14 05:30:04,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:30:04,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:30:04,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:30:04,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:30:04,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:30:04,777 INFO L87 Difference]: Start difference. First operand 2165 states and 5710 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)