./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_clnt.blast.02.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.02.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b0edcf84130f28de31dd252113e98a7277e8f803d45945a4e4ab5373cd867bd6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:56:38,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:56:38,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:56:38,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:56:38,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:56:38,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:56:38,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:56:38,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:56:38,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:56:38,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:56:38,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:56:38,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:56:38,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:56:38,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:56:38,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:56:38,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:56:38,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:56:38,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:56:38,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:56:38,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:56:38,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:56:38,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:56:38,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:56:38,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:56:38,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:56:38,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:56:38,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:56:38,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:56:38,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:56:38,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:56:38,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:56:38,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:56:38,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:56:38,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:56:38,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:56:38,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:56:38,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:56:38,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:56:38,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:56:38,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:56:38,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:56:38,444 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:56:38,470 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:56:38,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:56:38,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:56:38,472 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:56:38,472 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:56:38,472 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:56:38,472 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:56:38,473 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:56:38,473 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:56:38,473 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:56:38,473 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:56:38,473 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:56:38,474 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:56:38,474 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:56:38,474 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:56:38,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:56:38,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:56:38,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:56:38,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:56:38,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:56:38,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:56:38,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:56:38,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:56:38,476 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:56:38,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:56:38,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:56:38,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:56:38,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:56:38,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:56:38,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:56:38,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:56:38,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:56:38,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:56:38,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:56:38,479 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:56:38,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:56:38,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:56:38,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:56:38,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:56:38,480 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0edcf84130f28de31dd252113e98a7277e8f803d45945a4e4ab5373cd867bd6 [2021-11-03 04:56:38,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:56:38,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:56:38,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:56:38,793 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:56:38,794 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:56:38,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/openssl/s3_clnt.blast.02.i.cil-2.c [2021-11-03 04:56:38,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/data/a12a3e461/bc44bee584c043e5a661c50ba838ee37/FLAGccf0c2c13 [2021-11-03 04:56:39,545 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:56:39,546 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/sv-benchmarks/c/openssl/s3_clnt.blast.02.i.cil-2.c [2021-11-03 04:56:39,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/data/a12a3e461/bc44bee584c043e5a661c50ba838ee37/FLAGccf0c2c13 [2021-11-03 04:56:39,877 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/data/a12a3e461/bc44bee584c043e5a661c50ba838ee37 [2021-11-03 04:56:39,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:56:39,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:56:39,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:56:39,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:56:39,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:56:39,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:56:39" (1/1) ... [2021-11-03 04:56:39,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@392482f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:39, skipping insertion in model container [2021-11-03 04:56:39,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:56:39" (1/1) ... [2021-11-03 04:56:39,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:56:39,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:56:40,403 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/sv-benchmarks/c/openssl/s3_clnt.blast.02.i.cil-2.c[65398,65411] [2021-11-03 04:56:40,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:56:40,427 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 04:56:40,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@641d73e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:40, skipping insertion in model container [2021-11-03 04:56:40,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:56:40,428 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:56:40,430 INFO L168 Benchmark]: Toolchain (without parser) took 548.48 ms. Allocated memory is still 100.7 MB. Free memory was 64.5 MB in the beginning and 65.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:56:40,434 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 100.7 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:56:40,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.54 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 65.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:56:40,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 100.7 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 533.54 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 65.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1051]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.02.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b0edcf84130f28de31dd252113e98a7277e8f803d45945a4e4ab5373cd867bd6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:56:42,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:56:42,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:56:42,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:56:42,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:56:42,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:56:42,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:56:42,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:56:42,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:56:42,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:56:42,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:56:42,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:56:42,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:56:42,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:56:42,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:56:42,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:56:42,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:56:42,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:56:42,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:56:42,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:56:42,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:56:42,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:56:42,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:56:42,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:56:42,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:56:42,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:56:42,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:56:42,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:56:42,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:56:42,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:56:42,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:56:42,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:56:42,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:56:42,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:56:42,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:56:42,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:56:42,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:56:42,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:56:42,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:56:42,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:56:42,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:56:42,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:56:42,795 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:56:42,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:56:42,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:56:42,797 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:56:42,798 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:56:42,798 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:56:42,798 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:56:42,798 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:56:42,799 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:56:42,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:56:42,801 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:56:42,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:56:42,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:56:42,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:56:42,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:56:42,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:56:42,803 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:56:42,803 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:56:42,803 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:56:42,803 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:56:42,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:56:42,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:56:42,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:56:42,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:56:42,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:56:42,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:56:42,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:56:42,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:56:42,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:56:42,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:56:42,806 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:56:42,806 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:56:42,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:56:42,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:56:42,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:56:42,807 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_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0edcf84130f28de31dd252113e98a7277e8f803d45945a4e4ab5373cd867bd6 [2021-11-03 04:56:43,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:56:43,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:56:43,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:56:43,230 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:56:43,231 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:56:43,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/openssl/s3_clnt.blast.02.i.cil-2.c [2021-11-03 04:56:43,312 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/data/7d95fd8ac/04a6139aa4e84af0a5dc90afdc40c171/FLAG30d95d40b [2021-11-03 04:56:44,054 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:56:44,057 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/sv-benchmarks/c/openssl/s3_clnt.blast.02.i.cil-2.c [2021-11-03 04:56:44,085 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/data/7d95fd8ac/04a6139aa4e84af0a5dc90afdc40c171/FLAG30d95d40b [2021-11-03 04:56:44,241 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/data/7d95fd8ac/04a6139aa4e84af0a5dc90afdc40c171 [2021-11-03 04:56:44,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:56:44,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:56:44,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:56:44,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:56:44,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:56:44,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:56:44" (1/1) ... [2021-11-03 04:56:44,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363ac094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:44, skipping insertion in model container [2021-11-03 04:56:44,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:56:44" (1/1) ... [2021-11-03 04:56:44,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:56:44,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:56:44,872 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/sv-benchmarks/c/openssl/s3_clnt.blast.02.i.cil-2.c[65398,65411] [2021-11-03 04:56:44,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:56:44,921 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:56:44,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:56:45,082 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/sv-benchmarks/c/openssl/s3_clnt.blast.02.i.cil-2.c[65398,65411] [2021-11-03 04:56:45,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:56:45,118 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:56:45,272 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/sv-benchmarks/c/openssl/s3_clnt.blast.02.i.cil-2.c[65398,65411] [2021-11-03 04:56:45,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:56:45,306 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:56:45,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:45 WrapperNode [2021-11-03 04:56:45,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:56:45,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:56:45,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:56:45,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:56:45,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:45" (1/1) ... [2021-11-03 04:56:45,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:45" (1/1) ... [2021-11-03 04:56:45,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:56:45,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:56:45,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:56:45,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:56:45,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:45" (1/1) ... [2021-11-03 04:56:45,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:45" (1/1) ... [2021-11-03 04:56:45,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:45" (1/1) ... [2021-11-03 04:56:45,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:45" (1/1) ... [2021-11-03 04:56:45,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:45" (1/1) ... [2021-11-03 04:56:45,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:45" (1/1) ... [2021-11-03 04:56:45,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:45" (1/1) ... [2021-11-03 04:56:45,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:56:45,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:56:45,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:56:45,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:56:45,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:45" (1/1) ... [2021-11-03 04:56:45,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:56:45,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:56:45,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:56:45,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:56:45,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:56:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:56:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:56:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:56:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:56:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:56:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:56:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:56:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:56:45,900 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:56:54,841 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-11-03 04:56:54,842 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-11-03 04:56:54,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:56:54,849 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-03 04:56:54,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:56:54 BoogieIcfgContainer [2021-11-03 04:56:54,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:56:54,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:56:54,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:56:54,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:56:54,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:56:44" (1/3) ... [2021-11-03 04:56:54,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a75627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:56:54, skipping insertion in model container [2021-11-03 04:56:54,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:45" (2/3) ... [2021-11-03 04:56:54,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a75627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:56:54, skipping insertion in model container [2021-11-03 04:56:54,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:56:54" (3/3) ... [2021-11-03 04:56:54,859 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.02.i.cil-2.c [2021-11-03 04:56:54,865 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:56:54,865 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 04:56:54,913 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:56:54,918 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:56:54,919 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 04:56:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:54,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 04:56:54,960 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:54,960 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:56:54,961 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:56:54,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:54,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2021-11-03 04:56:54,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:54,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400112660] [2021-11-03 04:56:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:54,979 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:54,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:54,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:54,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:56:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:55,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:56:55,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:55,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:55,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:55,608 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:55,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400112660] [2021-11-03 04:56:55,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400112660] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:55,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:55,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:56:55,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433497390] [2021-11-03 04:56:55,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:56:55,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:55,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:56:55,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:56:55,631 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 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 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:55,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:55,757 INFO L93 Difference]: Finished difference Result 487 states and 823 transitions. [2021-11-03 04:56:55,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:56:55,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 24 [2021-11-03 04:56:55,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:55,772 INFO L225 Difference]: With dead ends: 487 [2021-11-03 04:56:55,772 INFO L226 Difference]: Without dead ends: 314 [2021-11-03 04:56:55,775 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:56:55,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-11-03 04:56:55,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2021-11-03 04:56:55,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 1.5047923322683705) internal successors, (471), 313 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:55,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 471 transitions. [2021-11-03 04:56:55,838 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 471 transitions. Word has length 24 [2021-11-03 04:56:55,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:55,839 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 471 transitions. [2021-11-03 04:56:55,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:55,839 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 471 transitions. [2021-11-03 04:56:55,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 04:56:55,844 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:55,844 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:56:55,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:56,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:56,048 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:56:56,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:56,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1550083377, now seen corresponding path program 1 times [2021-11-03 04:56:56,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:56,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109073272] [2021-11-03 04:56:56,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:56,051 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:56,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:56,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:56,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:56:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:56,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:56:56,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:56,571 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:56,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:56,771 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:56,772 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:56,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109073272] [2021-11-03 04:56:56,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109073272] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:56,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:56,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:56:56,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776305198] [2021-11-03 04:56:56,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:56:56,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:56,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:56:56,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:56:56,777 INFO L87 Difference]: Start difference. First operand 314 states and 471 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:58,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:58,975 INFO L93 Difference]: Finished difference Result 722 states and 1089 transitions. [2021-11-03 04:56:58,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:56:58,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-03 04:56:58,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:58,980 INFO L225 Difference]: With dead ends: 722 [2021-11-03 04:56:58,980 INFO L226 Difference]: Without dead ends: 515 [2021-11-03 04:56:58,982 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:56:58,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2021-11-03 04:56:59,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2021-11-03 04:56:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.4961089494163424) internal successors, (769), 514 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:59,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 769 transitions. [2021-11-03 04:56:59,050 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 769 transitions. Word has length 55 [2021-11-03 04:56:59,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:59,050 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 769 transitions. [2021-11-03 04:56:59,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:59,051 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 769 transitions. [2021-11-03 04:56:59,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-03 04:56:59,072 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:59,072 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:56:59,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:59,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:59,273 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:56:59,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:59,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1327788827, now seen corresponding path program 1 times [2021-11-03 04:56:59,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:59,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740047652] [2021-11-03 04:56:59,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:59,276 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:59,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:59,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:59,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:56:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:59,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:56:59,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:00,015 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-03 04:57:00,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-03 04:57:00,436 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:57:00,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740047652] [2021-11-03 04:57:00,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740047652] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:00,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:00,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:57:00,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090286980] [2021-11-03 04:57:00,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:57:00,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:57:00,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:57:00,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:57:00,439 INFO L87 Difference]: Start difference. First operand 515 states and 769 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:02,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:02,616 INFO L93 Difference]: Finished difference Result 1126 states and 1687 transitions. [2021-11-03 04:57:02,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:57:02,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 94 [2021-11-03 04:57:02,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:02,622 INFO L225 Difference]: With dead ends: 1126 [2021-11-03 04:57:02,622 INFO L226 Difference]: Without dead ends: 718 [2021-11-03 04:57:02,624 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:57:02,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-11-03 04:57:02,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2021-11-03 04:57:02,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 717 states have (on average 1.4909344490934449) internal successors, (1069), 717 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:02,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1069 transitions. [2021-11-03 04:57:02,706 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1069 transitions. Word has length 94 [2021-11-03 04:57:02,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:02,707 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 1069 transitions. [2021-11-03 04:57:02,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:02,707 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1069 transitions. [2021-11-03 04:57:02,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-03 04:57:02,721 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:02,721 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:57:02,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:02,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:57:02,925 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:57:02,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:02,926 INFO L85 PathProgramCache]: Analyzing trace with hash -856312524, now seen corresponding path program 1 times [2021-11-03 04:57:02,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:57:02,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003345032] [2021-11-03 04:57:02,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:02,927 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:57:02,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:57:02,929 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:57:02,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd25ef21-c1fc-4b51-a85b-f1a6b33431cc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:57:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:03,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:57:03,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:19,916 WARN L207 SmtUtils]: Spent 15.87 s on a formula simplification that was a NOOP. DAG size: 19 [2021-11-03 04:57:19,916 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:19,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 4938 treesize of output 4458 [2021-11-03 04:57:58,405 WARN L207 SmtUtils]: Spent 38.44 s on a formula simplification that was a NOOP. DAG size: 23 [2021-11-03 04:57:58,405 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:58,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 4439 treesize of output 4067