./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c6f82e874e2f980b653c53fa0437dd3390b1771d726d8f345336fe56afb2bb6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:55:17,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:55:17,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:55:17,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:55:17,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:55:17,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:55:17,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:55:17,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:55:17,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:55:17,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:55:17,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:55:17,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:55:17,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:55:17,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:55:17,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:55:17,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:55:17,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:55:17,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:55:17,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:55:17,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:55:17,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:55:17,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:55:17,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:55:17,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:55:17,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:55:17,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:55:17,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:55:17,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:55:17,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:55:17,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:55:17,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:55:17,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:55:17,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:55:17,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:55:17,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:55:17,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:55:17,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:55:17,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:55:17,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:55:17,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:55:17,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:55:17,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:55:17,209 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:55:17,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:55:17,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:55:17,210 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:55:17,210 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:55:17,211 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:55:17,211 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:55:17,211 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:55:17,211 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:55:17,212 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:55:17,212 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:55:17,212 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:55:17,212 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:55:17,212 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:55:17,213 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:55:17,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:55:17,214 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:55:17,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:55:17,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:55:17,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:55:17,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:55:17,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:55:17,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:55:17,215 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:55:17,215 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:55:17,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:55:17,216 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:55:17,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:55:17,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:55:17,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:55:17,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:55:17,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:55:17,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:55:17,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:55:17,218 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:55:17,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:55:17,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:55:17,218 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:55:17,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:55:17,219 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_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c6f82e874e2f980b653c53fa0437dd3390b1771d726d8f345336fe56afb2bb6 [2021-11-07 01:55:17,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:55:17,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:55:17,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:55:17,493 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:55:17,493 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:55:17,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-11-07 01:55:17,573 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/data/78bee922b/24cd1a1dcb824746b0a7ea4c123db590/FLAG3f578216d [2021-11-07 01:55:18,231 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:55:18,237 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-11-07 01:55:18,269 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/data/78bee922b/24cd1a1dcb824746b0a7ea4c123db590/FLAG3f578216d [2021-11-07 01:55:18,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/data/78bee922b/24cd1a1dcb824746b0a7ea4c123db590 [2021-11-07 01:55:18,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:55:18,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:55:18,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:55:18,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:55:18,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:55:18,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:18" (1/1) ... [2021-11-07 01:55:18,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9aa7ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:18, skipping insertion in model container [2021-11-07 01:55:18,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:18" (1/1) ... [2021-11-07 01:55:18,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:55:18,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:55:19,072 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_9e862146-9421-414d-a5f4-61c162ce9327/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-11-07 01:55:19,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:55:19,121 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:55:19,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@a513057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:19, skipping insertion in model container [2021-11-07 01:55:19,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:55:19,128 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:55:19,133 INFO L168 Benchmark]: Toolchain (without parser) took 678.01 ms. Allocated memory is still 109.1 MB. Free memory was 72.1 MB in the beginning and 75.2 MB in the end (delta: -3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:55:19,135 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 81.8 MB. Free memory was 55.3 MB in the beginning and 55.3 MB in the end (delta: 32.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:55:19,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.62 ms. Allocated memory is still 109.1 MB. Free memory was 71.9 MB in the beginning and 75.2 MB in the end (delta: -3.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:55:19,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 81.8 MB. Free memory was 55.3 MB in the beginning and 55.3 MB in the end (delta: 32.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 674.62 ms. Allocated memory is still 109.1 MB. Free memory was 71.9 MB in the beginning and 75.2 MB in the end (delta: -3.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1050]: 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_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c6f82e874e2f980b653c53fa0437dd3390b1771d726d8f345336fe56afb2bb6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:55:21,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:55:21,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:55:21,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:55:21,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:55:21,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:55:21,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:55:21,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:55:21,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:55:21,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:55:21,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:55:21,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:55:21,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:55:21,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:55:21,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:55:21,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:55:21,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:55:21,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:55:21,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:55:21,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:55:21,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:55:21,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:55:21,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:55:21,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:55:21,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:55:21,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:55:21,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:55:21,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:55:21,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:55:21,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:55:21,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:55:21,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:55:21,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:55:21,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:55:21,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:55:21,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:55:21,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:55:21,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:55:21,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:55:21,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:55:21,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:55:21,765 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:55:21,812 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:55:21,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:55:21,814 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:55:21,815 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:55:21,815 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:55:21,815 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:55:21,815 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:55:21,816 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:55:21,816 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:55:21,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:55:21,819 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:55:21,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:55:21,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:55:21,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:55:21,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:55:21,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:55:21,820 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:55:21,821 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:55:21,821 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:55:21,821 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:55:21,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:55:21,822 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:55:21,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:55:21,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:55:21,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:55:21,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:55:21,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:55:21,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:55:21,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:55:21,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:55:21,824 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:55:21,825 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:55:21,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:55:21,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:55:21,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:55:21,826 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_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c6f82e874e2f980b653c53fa0437dd3390b1771d726d8f345336fe56afb2bb6 [2021-11-07 01:55:22,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:55:22,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:55:22,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:55:22,312 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:55:22,313 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:55:22,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-11-07 01:55:22,396 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/data/206f6a83b/0d645fb0e1364741805b8fdfaf8ac009/FLAG00761fbb0 [2021-11-07 01:55:23,239 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:55:23,240 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-11-07 01:55:23,273 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/data/206f6a83b/0d645fb0e1364741805b8fdfaf8ac009/FLAG00761fbb0 [2021-11-07 01:55:23,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/data/206f6a83b/0d645fb0e1364741805b8fdfaf8ac009 [2021-11-07 01:55:23,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:55:23,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:55:23,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:55:23,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:55:23,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:55:23,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:23" (1/1) ... [2021-11-07 01:55:23,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733fa843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:23, skipping insertion in model container [2021-11-07 01:55:23,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:23" (1/1) ... [2021-11-07 01:55:23,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:55:23,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:55:23,989 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_9e862146-9421-414d-a5f4-61c162ce9327/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-11-07 01:55:24,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:55:24,022 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:55:24,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:55:24,157 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_9e862146-9421-414d-a5f4-61c162ce9327/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-11-07 01:55:24,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:55:24,177 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:55:24,295 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_9e862146-9421-414d-a5f4-61c162ce9327/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-11-07 01:55:24,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:55:24,346 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:55:24,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:24 WrapperNode [2021-11-07 01:55:24,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:55:24,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:55:24,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:55:24,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:55:24,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:24" (1/1) ... [2021-11-07 01:55:24,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:24" (1/1) ... [2021-11-07 01:55:24,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:55:24,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:55:24,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:55:24,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:55:24,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:24" (1/1) ... [2021-11-07 01:55:24,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:24" (1/1) ... [2021-11-07 01:55:24,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:24" (1/1) ... [2021-11-07 01:55:24,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:24" (1/1) ... [2021-11-07 01:55:24,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:24" (1/1) ... [2021-11-07 01:55:24,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:24" (1/1) ... [2021-11-07 01:55:24,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:24" (1/1) ... [2021-11-07 01:55:24,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:55:24,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:55:24,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:55:24,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:55:24,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:24" (1/1) ... [2021-11-07 01:55:24,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:55:24,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:55:24,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:55:24,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:55:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:55:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:55:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:55:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:55:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:55:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:55:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:55:24,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:55:24,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:55:24,900 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 01:55:35,119 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-07 01:55:35,120 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-07 01:55:35,136 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:55:35,137 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 01:55:35,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:55:35 BoogieIcfgContainer [2021-11-07 01:55:35,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:55:35,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:55:35,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:55:35,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:55:35,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:55:23" (1/3) ... [2021-11-07 01:55:35,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406f392f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:55:35, skipping insertion in model container [2021-11-07 01:55:35,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:24" (2/3) ... [2021-11-07 01:55:35,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406f392f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:55:35, skipping insertion in model container [2021-11-07 01:55:35,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:55:35" (3/3) ... [2021-11-07 01:55:35,150 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-2.c [2021-11-07 01:55:35,156 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:55:35,157 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:55:35,229 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:55:35,239 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:55:35,240 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:55:35,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 148 states have (on average 1.7162162162162162) internal successors, (254), 149 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:35,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 01:55:35,294 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:55:35,295 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:55:35,296 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:55:35,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:55:35,303 INFO L85 PathProgramCache]: Analyzing trace with hash -442385418, now seen corresponding path program 1 times [2021-11-07 01:55:35,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:55:35,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137493721] [2021-11-07 01:55:35,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:55:35,322 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:55:35,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:55:35,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:55:35,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:55:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:55:35,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:55:35,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:55:36,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:55:36,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:55:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:55:36,241 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:55:36,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137493721] [2021-11-07 01:55:36,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137493721] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:55:36,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:55:36,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:55:36,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882372455] [2021-11-07 01:55:36,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:55:36,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:55:36,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:55:36,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:55:36,273 INFO L87 Difference]: Start difference. First operand has 150 states, 148 states have (on average 1.7162162162162162) internal successors, (254), 149 states have internal predecessors, (254), 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 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:36,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:55:36,526 INFO L93 Difference]: Finished difference Result 566 states and 965 transitions. [2021-11-07 01:55:36,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:55:36,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 37 [2021-11-07 01:55:36,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:55:36,556 INFO L225 Difference]: With dead ends: 566 [2021-11-07 01:55:36,556 INFO L226 Difference]: Without dead ends: 387 [2021-11-07 01:55:36,561 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:55:36,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-11-07 01:55:36,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2021-11-07 01:55:36,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.5286458333333333) internal successors, (587), 384 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:36,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 587 transitions. [2021-11-07 01:55:36,663 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 587 transitions. Word has length 37 [2021-11-07 01:55:36,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:55:36,664 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 587 transitions. [2021-11-07 01:55:36,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:36,665 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 587 transitions. [2021-11-07 01:55:36,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 01:55:36,674 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:55:36,674 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:55:36,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:55:36,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:55:36,902 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:55:36,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:55:36,903 INFO L85 PathProgramCache]: Analyzing trace with hash 746604405, now seen corresponding path program 1 times [2021-11-07 01:55:36,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:55:36,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977899329] [2021-11-07 01:55:36,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:55:36,905 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:55:36,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:55:36,906 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:55:36,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:55:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:55:37,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:55:37,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:55:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:55:37,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:55:37,790 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:55:37,791 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:55:37,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977899329] [2021-11-07 01:55:37,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977899329] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:55:37,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:55:37,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:55:37,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402537061] [2021-11-07 01:55:37,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:55:37,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:55:37,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:55:37,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:55:37,797 INFO L87 Difference]: Start difference. First operand 385 states and 587 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:38,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:55:38,472 INFO L93 Difference]: Finished difference Result 879 states and 1353 transitions. [2021-11-07 01:55:38,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:55:38,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 60 [2021-11-07 01:55:38,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:55:38,479 INFO L225 Difference]: With dead ends: 879 [2021-11-07 01:55:38,479 INFO L226 Difference]: Without dead ends: 628 [2021-11-07 01:55:38,482 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:55:38,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2021-11-07 01:55:38,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 626. [2021-11-07 01:55:38,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 625 states have (on average 1.52) internal successors, (950), 625 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:38,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 950 transitions. [2021-11-07 01:55:38,519 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 950 transitions. Word has length 60 [2021-11-07 01:55:38,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:55:38,520 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 950 transitions. [2021-11-07 01:55:38,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:38,520 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 950 transitions. [2021-11-07 01:55:38,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-07 01:55:38,526 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:55:38,527 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:55:38,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 01:55:38,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:55:38,743 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:55:38,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:55:38,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1749353389, now seen corresponding path program 1 times [2021-11-07 01:55:38,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:55:38,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510004214] [2021-11-07 01:55:38,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:55:38,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:55:38,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:55:38,748 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:55:38,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:55:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:55:39,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:55:39,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:55:39,680 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 01:55:39,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:55:40,177 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 01:55:40,177 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:55:40,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510004214] [2021-11-07 01:55:40,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510004214] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:55:40,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:55:40,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:55:40,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725278344] [2021-11-07 01:55:40,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:55:40,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:55:40,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:55:40,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:55:40,181 INFO L87 Difference]: Start difference. First operand 626 states and 950 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:40,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:55:40,910 INFO L93 Difference]: Finished difference Result 1238 states and 1888 transitions. [2021-11-07 01:55:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:55:40,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 119 [2021-11-07 01:55:40,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:55:40,922 INFO L225 Difference]: With dead ends: 1238 [2021-11-07 01:55:40,922 INFO L226 Difference]: Without dead ends: 746 [2021-11-07 01:55:40,928 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:55:40,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-11-07 01:55:40,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2021-11-07 01:55:40,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 745 states have (on average 1.516778523489933) internal successors, (1130), 745 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:40,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1130 transitions. [2021-11-07 01:55:40,962 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1130 transitions. Word has length 119 [2021-11-07 01:55:40,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:55:40,963 INFO L470 AbstractCegarLoop]: Abstraction has 746 states and 1130 transitions. [2021-11-07 01:55:40,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:40,965 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1130 transitions. [2021-11-07 01:55:40,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-07 01:55:40,972 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:55:40,972 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:55:40,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:55:41,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:55:41,177 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:55:41,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:55:41,178 INFO L85 PathProgramCache]: Analyzing trace with hash 433077792, now seen corresponding path program 1 times [2021-11-07 01:55:41,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:55:41,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007407588] [2021-11-07 01:55:41,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:55:41,183 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:55:41,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:55:41,184 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:55:41,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:55:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:55:41,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:55:41,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:55:42,176 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-07 01:55:42,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:55:42,688 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-07 01:55:42,689 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:55:42,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007407588] [2021-11-07 01:55:42,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007407588] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:55:42,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:55:42,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:55:42,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293509411] [2021-11-07 01:55:42,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:55:42,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:55:42,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:55:42,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:55:42,691 INFO L87 Difference]: Start difference. First operand 746 states and 1130 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:43,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:55:43,823 INFO L93 Difference]: Finished difference Result 1605 states and 2443 transitions. [2021-11-07 01:55:43,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:55:43,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 143 [2021-11-07 01:55:43,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:55:43,835 INFO L225 Difference]: With dead ends: 1605 [2021-11-07 01:55:43,835 INFO L226 Difference]: Without dead ends: 993 [2021-11-07 01:55:43,836 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:55:43,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-11-07 01:55:43,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2021-11-07 01:55:43,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.5141129032258065) internal successors, (1502), 992 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:43,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1502 transitions. [2021-11-07 01:55:43,886 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1502 transitions. Word has length 143 [2021-11-07 01:55:43,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:55:43,888 INFO L470 AbstractCegarLoop]: Abstraction has 993 states and 1502 transitions. [2021-11-07 01:55:43,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:55:43,889 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1502 transitions. [2021-11-07 01:55:43,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-07 01:55:43,897 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:55:43,898 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:55:43,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:55:44,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:55:44,117 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:55:44,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:55:44,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1035961974, now seen corresponding path program 1 times [2021-11-07 01:55:44,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:55:44,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566726302] [2021-11-07 01:55:44,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:55:44,119 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:55:44,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:55:44,120 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:55:44,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:55:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:55:44,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 01:55:44,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:55:44,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 01:55:44,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 01:55:45,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:55:45,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:55:45,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:55:45,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 336 [2021-11-07 01:55:45,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 336 treesize of output 319 [2021-11-07 01:55:45,581 INFO L354 Elim1Store]: treesize reduction 1607, result has 2.8 percent of original size [2021-11-07 01:55:45,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 717 treesize of output 669 [2021-11-07 01:55:45,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:55:45,655 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:55:45,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 210 [2021-11-07 01:55:45,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 101 [2021-11-07 01:55:45,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 13 [2021-11-07 01:55:45,921 INFO L354 Elim1Store]: treesize reduction 340, result has 2.6 percent of original size [2021-11-07 01:55:45,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 13 [2021-11-07 01:55:45,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:55:45,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 13 [2021-11-07 01:55:45,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-07 01:55:46,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-07 01:55:46,508 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-07 01:55:46,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:55:47,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:55:47,184 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-11-07 01:55:47,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:55:47,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-11-07 01:55:47,349 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:55:47,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 393 [2021-11-07 01:55:47,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:55:47,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 510 [2021-11-07 01:55:47,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:55:47,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 687 [2021-11-07 01:55:47,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:55:47,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 744 [2021-11-07 01:55:47,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:55:47,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 861 [2021-11-07 01:55:47,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:55:47,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1038 [2021-11-07 01:55:47,961 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-07 01:55:47,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:55:47,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566726302] [2021-11-07 01:55:47,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566726302] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:55:47,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:55:47,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:55:47,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205238310] [2021-11-07 01:55:47,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:55:47,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:55:47,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:55:47,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:55:47,969 INFO L87 Difference]: Start difference. First operand 993 states and 1502 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:25,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:25,605 INFO L93 Difference]: Finished difference Result 1983 states and 3000 transitions. [2021-11-07 01:56:25,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:56:25,608 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 166 [2021-11-07 01:56:25,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:25,615 INFO L225 Difference]: With dead ends: 1983 [2021-11-07 01:56:25,615 INFO L226 Difference]: Without dead ends: 993 [2021-11-07 01:56:25,617 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 323 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:25,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-11-07 01:56:25,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2021-11-07 01:56:25,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.5131048387096775) internal successors, (1501), 992 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:25,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1501 transitions. [2021-11-07 01:56:25,663 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1501 transitions. Word has length 166 [2021-11-07 01:56:25,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:25,663 INFO L470 AbstractCegarLoop]: Abstraction has 993 states and 1501 transitions. [2021-11-07 01:56:25,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:25,664 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1501 transitions. [2021-11-07 01:56:25,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-07 01:56:25,668 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:25,668 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:25,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:56:25,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:56:25,888 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:56:25,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:25,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1534397000, now seen corresponding path program 1 times [2021-11-07 01:56:25,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:25,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125057261] [2021-11-07 01:56:25,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:25,890 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:25,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:25,891 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:25,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:56:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:28,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-07 01:56:28,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:29,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5171 treesize of output 5135 [2021-11-07 01:56:29,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:56:29,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7195 [2021-11-07 01:56:29,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7619 treesize of output 7245 [2021-11-07 01:56:29,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 5484 treesize of output 5077 [2021-11-07 01:56:29,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5659 treesize of output 5439 [2021-11-07 01:56:29,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:29,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,684 WARN L207 SmtUtils]: Spent 7.70 m on a formula simplification. DAG size of input: 342 DAG size of output: 84 [2021-11-07 02:04:11,685 INFO L354 Elim1Store]: treesize reduction 4275, result has 6.1 percent of original size [2021-11-07 02:04:11,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 12 new quantified variables, introduced 22 case distinctions, treesize of input 5652 treesize of output 4945 [2021-11-07 02:04:11,724 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 02:04:11,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:04:11,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8116 [2021-11-07 02:04:11,786 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:04:11,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12631 [2021-11-07 02:04:11,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 8534 treesize of output 7678 [2021-11-07 02:04:11,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:11,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:04:12,202 INFO L244 Elim1Store]: Index analysis took 156 ms [2021-11-07 02:04:12,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 66 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5224 treesize of output 5093 [2021-11-07 02:04:12,263 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:12,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125057261] [2021-11-07 02:04:12,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Some non-self update cases but no top-level DER relation [2021-11-07 02:04:12,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1940250786] [2021-11-07 02:04:12,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:12,265 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:04:12,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:04:12,270 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:04:12,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-07 02:06:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:06:34,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-07 02:06:34,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@77412f6 [2021-11-07 02:06:34,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30135292] [2021-11-07 02:06:34,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:06:34,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:06:34,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:06:34,896 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:06:34,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 02:06:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:06:37,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-07 02:06:37,874 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@77412f6 [2021-11-07 02:06:37,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:06:37,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 02:06:37,875 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-07 02:06:37,875 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 02:06:37,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:06:37,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:06:38,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-11-07 02:06:38,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:06:38,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:06:38,504 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-07 02:06:38,507 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:06:38,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:06:38 BoogieIcfgContainer [2021-11-07 02:06:38,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:06:38,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:06:38,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:06:38,569 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:06:38,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:55:35" (3/4) ... [2021-11-07 02:06:38,573 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 02:06:38,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:06:38,574 INFO L168 Benchmark]: Toolchain (without parser) took 675224.60 ms. Allocated memory was 54.5 MB in the beginning and 123.7 MB in the end (delta: 69.2 MB). Free memory was 30.6 MB in the beginning and 62.5 MB in the end (delta: -31.9 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:38,575 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 54.5 MB. Free memory is still 35.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:06:38,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 996.16 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.4 MB in the beginning and 44.5 MB in the end (delta: -14.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:38,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.53 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 39.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:38,576 INFO L168 Benchmark]: Boogie Preprocessor took 132.59 ms. Allocated memory is still 67.1 MB. Free memory was 39.8 MB in the beginning and 32.5 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:38,576 INFO L168 Benchmark]: RCFGBuilder took 10573.53 ms. Allocated memory was 67.1 MB in the beginning and 102.8 MB in the end (delta: 35.7 MB). Free memory was 32.5 MB in the beginning and 47.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:38,577 INFO L168 Benchmark]: TraceAbstraction took 663426.26 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 47.9 MB in the beginning and 63.5 MB in the end (delta: -15.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:38,577 INFO L168 Benchmark]: Witness Printer took 5.15 ms. Allocated memory is still 123.7 MB. Free memory is still 62.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:06:38,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 54.5 MB. Free memory is still 35.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 996.16 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.4 MB in the beginning and 44.5 MB in the end (delta: -14.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.53 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 39.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 132.59 ms. Allocated memory is still 67.1 MB. Free memory was 39.8 MB in the beginning and 32.5 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10573.53 ms. Allocated memory was 67.1 MB in the beginning and 102.8 MB in the end (delta: 35.7 MB). Free memory was 32.5 MB in the beginning and 47.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 663426.26 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 47.9 MB in the beginning and 63.5 MB in the end (delta: -15.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.15 ms. Allocated memory is still 123.7 MB. Free memory is still 62.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1757]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1087] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1088] s->options = __VERIFIER_nondet_ulong() [L1089] s->verify_mode = __VERIFIER_nondet_int() [L1090] EXPR s->session [L1090] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1091] EXPR s->s3 [L1091] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1093] EXPR s->s3 [L1093] EXPR (s->s3)->tmp.new_cipher [L1093] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1095] COND FALSE !(__VERIFIER_nondet_int()) [L1101] s->cert = malloc(sizeof(struct cert_st)) [L1102] EXPR s->cert [L1102] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1111] BUF_MEM *buf ; [L1112] unsigned long l ; [L1113] unsigned long Time ; [L1114] unsigned long tmp ; [L1115] void (*cb)() ; [L1116] long num1 ; [L1117] int ret ; [L1118] int new_state ; [L1119] int state ; [L1120] int skip ; [L1121] int got_new_session ; [L1122] int tmp___1 = __VERIFIER_nondet_int() ; [L1123] int tmp___2 = __VERIFIER_nondet_int() ; [L1124] int tmp___3 = __VERIFIER_nondet_int() ; [L1125] int tmp___4 = __VERIFIER_nondet_int() ; [L1126] int tmp___5 = __VERIFIER_nondet_int() ; [L1127] int tmp___6 = __VERIFIER_nondet_int() ; [L1128] int tmp___7 ; [L1129] long tmp___8 = __VERIFIER_nondet_long() ; [L1130] int tmp___9 = __VERIFIER_nondet_int() ; [L1131] int tmp___10 = __VERIFIER_nondet_int() ; [L1132] int blastFlag ; [L1136] s->state = 8464 [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) [L1161] EXPR s->cert [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 [L1378] COND FALSE !(ret <= 0) [L1383] s->hit [L1383] COND TRUE s->hit [L1384] s->state = 8656 [L1388] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND TRUE s->state == 8656 [L1601] EXPR s->session [L1601] EXPR s->s3 [L1601] EXPR (s->s3)->tmp.new_cipher [L1601] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1602] COND FALSE !(! tmp___9) [L1608] ret = __VERIFIER_nondet_int() [L1609] COND TRUE blastFlag == 2 [L1610] blastFlag = 3 [L1622] COND FALSE !(ret <= 0) [L1627] s->state = 8672 [L1628] s->init_num = 0 [L1629] COND FALSE !(! tmp___10) [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND FALSE !(s->state == 8656) [L1263] EXPR s->state [L1263] COND FALSE !(s->state == 8657) [L1266] EXPR s->state [L1266] COND TRUE s->state == 8672 [L1638] ret = __VERIFIER_nondet_int() [L1639] COND TRUE blastFlag == 3 [L1640] blastFlag = 4 [L1644] COND FALSE !(ret <= 0) [L1649] s->state = 8448 [L1650] s->hit [L1650] COND TRUE s->hit [L1651] EXPR s->s3 [L1651] (s->s3)->tmp.next_state = 8640 [L1655] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND TRUE s->state == 8640 [L1581] ret = __VERIFIER_nondet_int() [L1582] COND TRUE blastFlag == 4 [L1757] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 150 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 663.2s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 40.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1545 SDtfs, 1147 SDslu, 2282 SDs, 0 SdLazy, 516 SolverSat, 73 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 39.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1042 GetRequests, 1026 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=993occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 469.7s InterpolantComputationTime, 691 NumberOfCodeBlocks, 691 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1040 ConstructedInterpolants, 1 QuantifiedInterpolants, 2069 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1878 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 912/912 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 02:06:38,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e862146-9421-414d-a5f4-61c162ce9327/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN