./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_srvr.blast.01.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_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/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_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/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_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/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 a1fff1f2750aedbe7119b44ad3cdc8a2dbfa05ad8147a422ae9aeb0054d6e253 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:23:30,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:23:30,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:23:30,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:23:30,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:23:30,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:23:30,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:23:30,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:23:30,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:23:30,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:23:30,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:23:30,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:23:30,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:23:30,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:23:30,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:23:30,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:23:30,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:23:30,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:23:30,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:23:30,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:23:30,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:23:30,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:23:30,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:23:30,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:23:30,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:23:30,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:23:30,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:23:30,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:23:30,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:23:30,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:23:30,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:23:30,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:23:30,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:23:30,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:23:30,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:23:30,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:23:30,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:23:30,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:23:30,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:23:30,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:23:30,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:23:30,883 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:23:30,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:23:30,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:23:30,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:23:30,917 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:23:30,917 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:23:30,917 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:23:30,918 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:23:30,918 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:23:30,919 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:23:30,919 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:23:30,919 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:23:30,920 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:23:30,920 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:23:30,921 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:23:30,921 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:23:30,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:23:30,922 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:23:30,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:23:30,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:23:30,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:23:30,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:23:30,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:23:30,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:23:30,925 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:23:30,925 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:23:30,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:23:30,926 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:23:30,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:23:30,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:23:30,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:23:30,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:23:30,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:23:30,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:23:30,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:23:30,929 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:23:30,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:23:30,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:23:30,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:23:30,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:23:30,931 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_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1fff1f2750aedbe7119b44ad3cdc8a2dbfa05ad8147a422ae9aeb0054d6e253 [2021-11-07 02:23:31,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:23:31,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:23:31,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:23:31,192 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:23:31,193 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:23:31,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c [2021-11-07 02:23:31,253 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/data/26262fab8/66de31d847eb4d73844d74277fb29109/FLAG4d227b133 [2021-11-07 02:23:31,917 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:23:31,919 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c [2021-11-07 02:23:31,953 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/data/26262fab8/66de31d847eb4d73844d74277fb29109/FLAG4d227b133 [2021-11-07 02:23:32,094 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/data/26262fab8/66de31d847eb4d73844d74277fb29109 [2021-11-07 02:23:32,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:23:32,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:23:32,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:23:32,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:23:32,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:23:32,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:23:32" (1/1) ... [2021-11-07 02:23:32,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d342a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:32, skipping insertion in model container [2021-11-07 02:23:32,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:23:32" (1/1) ... [2021-11-07 02:23:32,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:23:32,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:23:32,672 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_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-07 02:23:32,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:23:32,693 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 02:23:32,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@488f7aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:32, skipping insertion in model container [2021-11-07 02:23:32,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:23:32,694 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:23:32,696 INFO L168 Benchmark]: Toolchain (without parser) took 597.17 ms. Allocated memory is still 90.2 MB. Free memory was 64.2 MB in the beginning and 56.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:23:32,697 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 63.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:23:32,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.86 ms. Allocated memory is still 90.2 MB. Free memory was 64.1 MB in the beginning and 56.8 MB in the end (delta: 7.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:23:32,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 63.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 594.86 ms. Allocated memory is still 90.2 MB. Free memory was 64.1 MB in the beginning and 56.8 MB in the end (delta: 7.3 MB). Peak memory consumption was 14.7 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_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/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_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/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_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/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 a1fff1f2750aedbe7119b44ad3cdc8a2dbfa05ad8147a422ae9aeb0054d6e253 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:23:34,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:23:34,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:23:34,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:23:34,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:23:34,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:23:34,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:23:34,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:23:34,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:23:34,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:23:34,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:23:34,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:23:34,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:23:34,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:23:34,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:23:34,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:23:34,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:23:34,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:23:35,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:23:35,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:23:35,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:23:35,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:23:35,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:23:35,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:23:35,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:23:35,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:23:35,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:23:35,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:23:35,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:23:35,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:23:35,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:23:35,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:23:35,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:23:35,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:23:35,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:23:35,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:23:35,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:23:35,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:23:35,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:23:35,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:23:35,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:23:35,025 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 02:23:35,051 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:23:35,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:23:35,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:23:35,052 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:23:35,053 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:23:35,053 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:23:35,053 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:23:35,053 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:23:35,054 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:23:35,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:23:35,059 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:23:35,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:23:35,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:23:35,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:23:35,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:23:35,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:23:35,060 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:23:35,061 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:23:35,061 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:23:35,061 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:23:35,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:23:35,062 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:23:35,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:23:35,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:23:35,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:23:35,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:23:35,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:23:35,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:23:35,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:23:35,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:23:35,064 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:23:35,064 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:23:35,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:23:35,065 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:23:35,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:23:35,065 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_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1fff1f2750aedbe7119b44ad3cdc8a2dbfa05ad8147a422ae9aeb0054d6e253 [2021-11-07 02:23:35,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:23:35,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:23:35,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:23:35,483 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:23:35,484 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:23:35,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c [2021-11-07 02:23:35,556 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/data/918edc627/3922be487d5b4d6f96f63c2b4bfdfb78/FLAG828834ea8 [2021-11-07 02:23:36,144 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:23:36,145 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c [2021-11-07 02:23:36,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/data/918edc627/3922be487d5b4d6f96f63c2b4bfdfb78/FLAG828834ea8 [2021-11-07 02:23:36,523 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/data/918edc627/3922be487d5b4d6f96f63c2b4bfdfb78 [2021-11-07 02:23:36,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:23:36,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:23:36,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:23:36,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:23:36,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:23:36,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:23:36" (1/1) ... [2021-11-07 02:23:36,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e906beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:36, skipping insertion in model container [2021-11-07 02:23:36,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:23:36" (1/1) ... [2021-11-07 02:23:36,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:23:36,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:23:37,174 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_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-07 02:23:37,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:23:37,220 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:23:37,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:23:37,381 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_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-07 02:23:37,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:23:37,398 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:23:37,503 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_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-07 02:23:37,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:23:37,522 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:23:37,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:37 WrapperNode [2021-11-07 02:23:37,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:23:37,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:23:37,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:23:37,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:23:37,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:37" (1/1) ... [2021-11-07 02:23:37,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:37" (1/1) ... [2021-11-07 02:23:37,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:23:37,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:23:37,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:23:37,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:23:37,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:37" (1/1) ... [2021-11-07 02:23:37,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:37" (1/1) ... [2021-11-07 02:23:37,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:37" (1/1) ... [2021-11-07 02:23:37,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:37" (1/1) ... [2021-11-07 02:23:37,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:37" (1/1) ... [2021-11-07 02:23:37,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:37" (1/1) ... [2021-11-07 02:23:37,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:37" (1/1) ... [2021-11-07 02:23:37,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:23:37,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:23:37,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:23:37,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:23:37,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:37" (1/1) ... [2021-11-07 02:23:37,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:23:37,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:23:37,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:23:37,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:23:37,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:23:37,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:23:37,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:23:37,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:23:37,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:23:37,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:23:37,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:23:37,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:23:37,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:23:38,194 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 02:23:47,337 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-07 02:23:47,337 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-07 02:23:47,345 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:23:47,346 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 02:23:47,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:23:47 BoogieIcfgContainer [2021-11-07 02:23:47,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:23:47,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:23:47,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:23:47,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:23:47,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:23:36" (1/3) ... [2021-11-07 02:23:47,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c0bfff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:23:47, skipping insertion in model container [2021-11-07 02:23:47,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:37" (2/3) ... [2021-11-07 02:23:47,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c0bfff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:23:47, skipping insertion in model container [2021-11-07 02:23:47,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:23:47" (3/3) ... [2021-11-07 02:23:47,356 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-2.c [2021-11-07 02:23:47,361 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:23:47,361 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:23:47,407 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:23:47,413 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 02:23:47,413 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 02:23:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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 02:23:47,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 02:23:47,456 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:23:47,457 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:23:47,458 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:23:47,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:23:47,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1430116946, now seen corresponding path program 1 times [2021-11-07 02:23:47,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:23:47,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454306605] [2021-11-07 02:23:47,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:23:47,484 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:23:47,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:23:47,490 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:23:47,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:23:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:23:47,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:23:47,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:23:48,133 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 02:23:48,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:23:48,417 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 02:23:48,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:23:48,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454306605] [2021-11-07 02:23:48,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454306605] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:23:48,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:23:48,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:23:48,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930698581] [2021-11-07 02:23:48,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:23:48,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:23:48,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:23:48,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:23:48,446 INFO L87 Difference]: Start difference. First operand has 147 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 02:23:48,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:23:48,609 INFO L93 Difference]: Finished difference Result 551 states and 928 transitions. [2021-11-07 02:23:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:23:48,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 47 [2021-11-07 02:23:48,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:23:48,630 INFO L225 Difference]: With dead ends: 551 [2021-11-07 02:23:48,631 INFO L226 Difference]: Without dead ends: 375 [2021-11-07 02:23:48,634 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 90 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 02:23:48,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-11-07 02:23:48,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2021-11-07 02:23:48,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 1.5188172043010753) internal successors, (565), 372 states have internal predecessors, (565), 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 02:23:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 565 transitions. [2021-11-07 02:23:48,698 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 565 transitions. Word has length 47 [2021-11-07 02:23:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:23:48,699 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 565 transitions. [2021-11-07 02:23:48,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 02:23:48,700 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 565 transitions. [2021-11-07 02:23:48,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 02:23:48,704 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:23:48,704 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, 1, 1, 1, 1, 1] [2021-11-07 02:23:48,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:23:48,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:23:48,911 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:23:48,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:23:48,911 INFO L85 PathProgramCache]: Analyzing trace with hash 315021975, now seen corresponding path program 1 times [2021-11-07 02:23:48,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:23:48,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [816887089] [2021-11-07 02:23:48,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:23:48,913 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:23:48,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:23:48,916 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:23:48,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:23:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:23:49,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:23:49,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:23:49,537 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 02:23:49,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:23:49,829 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 02:23:49,829 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:23:49,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [816887089] [2021-11-07 02:23:49,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [816887089] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:23:49,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:23:49,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:23:49,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829067489] [2021-11-07 02:23:49,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:23:49,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:23:49,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:23:49,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:23:49,833 INFO L87 Difference]: Start difference. First operand 373 states and 565 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 02:23:50,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:23:50,025 INFO L93 Difference]: Finished difference Result 855 states and 1302 transitions. [2021-11-07 02:23:50,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:23:50,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 65 [2021-11-07 02:23:50,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:23:50,034 INFO L225 Difference]: With dead ends: 855 [2021-11-07 02:23:50,035 INFO L226 Difference]: Without dead ends: 613 [2021-11-07 02:23:50,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 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 02:23:50,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-07 02:23:50,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 611. [2021-11-07 02:23:50,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 610 states have (on average 1.5163934426229508) internal successors, (925), 610 states have internal predecessors, (925), 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 02:23:50,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 925 transitions. [2021-11-07 02:23:50,116 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 925 transitions. Word has length 65 [2021-11-07 02:23:50,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:23:50,117 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 925 transitions. [2021-11-07 02:23:50,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 02:23:50,118 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 925 transitions. [2021-11-07 02:23:50,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-07 02:23:50,130 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:23:50,130 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, 2, 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] [2021-11-07 02:23:50,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:23:50,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:23:50,350 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:23:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:23:50,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1540639451, now seen corresponding path program 1 times [2021-11-07 02:23:50,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:23:50,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86346663] [2021-11-07 02:23:50,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:23:50,354 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:23:50,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:23:50,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:23:50,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:23:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:23:50,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:23:50,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:23:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 02:23:51,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:23:51,621 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 02:23:51,621 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:23:51,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86346663] [2021-11-07 02:23:51,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86346663] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:23:51,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:23:51,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:23:51,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224388612] [2021-11-07 02:23:51,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:23:51,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:23:51,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:23:51,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:23:51,624 INFO L87 Difference]: Start difference. First operand 611 states and 925 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 02:23:51,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:23:51,815 INFO L93 Difference]: Finished difference Result 1093 states and 1657 transitions. [2021-11-07 02:23:51,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:23:51,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 125 [2021-11-07 02:23:51,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:23:51,820 INFO L225 Difference]: With dead ends: 1093 [2021-11-07 02:23:51,820 INFO L226 Difference]: Without dead ends: 613 [2021-11-07 02:23:51,821 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 246 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 02:23:51,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-07 02:23:51,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2021-11-07 02:23:51,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 612 states have (on average 1.5049019607843137) internal successors, (921), 612 states have internal predecessors, (921), 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 02:23:51,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 921 transitions. [2021-11-07 02:23:51,850 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 921 transitions. Word has length 125 [2021-11-07 02:23:51,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:23:51,851 INFO L470 AbstractCegarLoop]: Abstraction has 613 states and 921 transitions. [2021-11-07 02:23:51,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 02:23:51,852 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 921 transitions. [2021-11-07 02:23:51,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-07 02:23:51,854 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:23:51,854 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, 2, 2, 2, 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] [2021-11-07 02:23:51,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:23:52,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:23:52,072 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:23:52,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:23:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1760202500, now seen corresponding path program 1 times [2021-11-07 02:23:52,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:23:52,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952271681] [2021-11-07 02:23:52,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:23:52,079 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:23:52,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:23:52,080 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:23:52,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:23:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:23:52,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 02:23:52,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:23:52,782 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 02:23:52,792 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 02:23:52,880 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:23:52,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-07 02:23:52,904 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 169 treesize of output 158 [2021-11-07 02:23:53,408 INFO L354 Elim1Store]: treesize reduction 1607, result has 2.8 percent of original size [2021-11-07 02:23:53,409 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 469 treesize of output 441 [2021-11-07 02:23:53,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:23:53,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-07 02:23:53,459 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 169 treesize of output 158 [2021-11-07 02:23:53,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,581 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 77 treesize of output 49 [2021-11-07 02:23:53,718 INFO L354 Elim1Store]: treesize reduction 340, result has 2.6 percent of original size [2021-11-07 02:23:53,718 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 02:23:53,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:23:53,761 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 02:23:53,800 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 02:23:53,805 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 02:23:54,197 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-11-07 02:23:54,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:23:54,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:23:54,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-11-07 02:23:54,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:23:54,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-11-07 02:23:54,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:23:54,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-07 02:23:54,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:23:54,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 404 [2021-11-07 02:23:54,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:23:54,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 461 [2021-11-07 02:23:54,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:23:54,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 578 [2021-11-07 02:23:55,204 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-11-07 02:23:55,205 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:23:55,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952271681] [2021-11-07 02:23:55,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952271681] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:23:55,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:23:55,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 02:23:55,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823189716] [2021-11-07 02:23:55,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:23:55,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:23:55,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:23:55,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:23:55,209 INFO L87 Difference]: Start difference. First operand 613 states and 921 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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 02:24:12,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:12,701 INFO L93 Difference]: Finished difference Result 1223 states and 1838 transitions. [2021-11-07 02:24:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:24:12,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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 128 [2021-11-07 02:24:12,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:12,707 INFO L225 Difference]: With dead ends: 1223 [2021-11-07 02:24:12,708 INFO L226 Difference]: Without dead ends: 613 [2021-11-07 02:24:12,709 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 247 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 02:24:12,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-07 02:24:12,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2021-11-07 02:24:12,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 612 states have (on average 1.5032679738562091) internal successors, (920), 612 states have internal predecessors, (920), 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 02:24:12,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 920 transitions. [2021-11-07 02:24:12,744 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 920 transitions. Word has length 128 [2021-11-07 02:24:12,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:12,745 INFO L470 AbstractCegarLoop]: Abstraction has 613 states and 920 transitions. [2021-11-07 02:24:12,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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 02:24:12,745 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 920 transitions. [2021-11-07 02:24:12,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-07 02:24:12,747 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:12,747 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, 2, 2, 2, 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] [2021-11-07 02:24:12,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:12,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:12,964 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:24:12,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:12,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1330544194, now seen corresponding path program 1 times [2021-11-07 02:24:12,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:12,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535438670] [2021-11-07 02:24:12,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:12,966 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:12,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:12,968 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:13,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:24:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:13,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:24:13,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:13,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:24:13,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:24:13,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:24:13,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:24:13,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:24:13,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:24:14,090 INFO L354 Elim1Store]: treesize reduction 190, result has 12.8 percent of original size [2021-11-07 02:24:14,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 38 [2021-11-07 02:24:14,178 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:24:14,179 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:24:14,179 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:24:14,630 INFO L354 Elim1Store]: treesize reduction 850, result has 7.0 percent of original size [2021-11-07 02:24:14,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 70 treesize of output 87 [2021-11-07 02:24:16,360 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 02:24:16,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 108 treesize of output 36 [2021-11-07 02:24:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-07 02:24:16,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-07 02:24:17,604 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:17,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535438670] [2021-11-07 02:24:17,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535438670] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:17,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:17,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2021-11-07 02:24:17,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129847168] [2021-11-07 02:24:17,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:24:17,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:17,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:24:17,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:24:17,606 INFO L87 Difference]: Start difference. First operand 613 states and 920 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 02:24:30,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:30,926 INFO L93 Difference]: Finished difference Result 1420 states and 2131 transitions. [2021-11-07 02:24:30,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:24:30,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 128 [2021-11-07 02:24:30,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:30,937 INFO L225 Difference]: With dead ends: 1420 [2021-11-07 02:24:30,937 INFO L226 Difference]: Without dead ends: 817 [2021-11-07 02:24:30,939 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 248 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:24:30,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2021-11-07 02:24:30,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 713. [2021-11-07 02:24:30,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 712 states have (on average 1.5337078651685394) internal successors, (1092), 712 states have internal predecessors, (1092), 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 02:24:30,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1092 transitions. [2021-11-07 02:24:30,976 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1092 transitions. Word has length 128 [2021-11-07 02:24:30,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:30,977 INFO L470 AbstractCegarLoop]: Abstraction has 713 states and 1092 transitions. [2021-11-07 02:24:30,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 02:24:30,978 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1092 transitions. [2021-11-07 02:24:30,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-07 02:24:30,984 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:30,985 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, 2, 2, 2, 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] [2021-11-07 02:24:31,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:31,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:31,204 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:24:31,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:31,205 INFO L85 PathProgramCache]: Analyzing trace with hash -545938624, now seen corresponding path program 1 times [2021-11-07 02:24:31,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:31,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828677345] [2021-11-07 02:24:31,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:31,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:31,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:31,208 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:31,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:24:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:24:34,637 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 02:24:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:24:37,070 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-07 02:24:37,071 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 02:24:37,072 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:24:37,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:37,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:37,284 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-07 02:24:37,287 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:24:37,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:24:37 BoogieIcfgContainer [2021-11-07 02:24:37,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:24:37,436 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:24:37,436 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:24:37,436 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:24:37,437 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:23:47" (3/4) ... [2021-11-07 02:24:37,438 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 02:24:37,559 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 02:24:37,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:24:37,560 INFO L168 Benchmark]: Toolchain (without parser) took 61032.69 ms. Allocated memory was 71.3 MB in the beginning and 109.1 MB in the end (delta: 37.7 MB). Free memory was 48.9 MB in the beginning and 66.8 MB in the end (delta: -17.9 MB). Peak memory consumption was 67.0 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:37,561 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 71.3 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:24:37,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 994.89 ms. Allocated memory is still 71.3 MB. Free memory was 48.7 MB in the beginning and 40.4 MB in the end (delta: 8.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:37,561 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.05 ms. Allocated memory is still 71.3 MB. Free memory was 40.4 MB in the beginning and 35.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:37,562 INFO L168 Benchmark]: Boogie Preprocessor took 140.81 ms. Allocated memory is still 71.3 MB. Free memory was 35.9 MB in the beginning and 28.5 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:37,562 INFO L168 Benchmark]: RCFGBuilder took 9564.16 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 28.5 MB in the beginning and 49.8 MB in the end (delta: -21.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:37,563 INFO L168 Benchmark]: TraceAbstraction took 50085.45 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 49.8 MB in the beginning and 38.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:37,563 INFO L168 Benchmark]: Witness Printer took 123.63 ms. Allocated memory is still 109.1 MB. Free memory was 38.6 MB in the beginning and 66.8 MB in the end (delta: -28.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:37,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 71.3 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 994.89 ms. Allocated memory is still 71.3 MB. Free memory was 48.7 MB in the beginning and 40.4 MB in the end (delta: 8.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 117.05 ms. Allocated memory is still 71.3 MB. Free memory was 40.4 MB in the beginning and 35.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 140.81 ms. Allocated memory is still 71.3 MB. Free memory was 35.9 MB in the beginning and 28.5 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 9564.16 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 28.5 MB in the beginning and 49.8 MB in the end (delta: -21.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 50085.45 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 49.8 MB in the beginning and 38.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. * Witness Printer took 123.63 ms. Allocated memory is still 109.1 MB. Free memory was 38.6 MB in the beginning and 66.8 MB in the end (delta: -28.2 MB). Peak memory consumption was 20.1 MB. 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 - CounterExampleResult [Line: 1737]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; VAL [init=1, SSLv3_server_data={-6:0}] [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)) [L1086] s->state = 8464 [L1088] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1089] s->options = __VERIFIER_nondet_ulong() [L1090] s->verify_mode = __VERIFIER_nondet_int() [L1091] EXPR s->session [L1091] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1096] COND FALSE !(__VERIFIER_nondet_int()) [L1102] s->cert = malloc(sizeof(struct cert_st)) [L1103] EXPR s->cert [L1103] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1112] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1113] unsigned long l ; [L1114] unsigned long Time ; [L1115] unsigned long tmp = __VERIFIER_nondet_long() ; [L1116] void (*cb)() ; [L1117] long num1 ; [L1118] int ret ; [L1119] int new_state ; [L1120] int state ; [L1121] int skip ; [L1122] int got_new_session ; [L1123] int tmp___1 = __VERIFIER_nondet_int() ; [L1124] int tmp___2 = __VERIFIER_nondet_int() ; [L1125] int tmp___3 ; [L1126] int tmp___4 ; [L1127] int tmp___5 ; [L1128] int tmp___6 ; [L1129] int tmp___7 ; [L1130] long tmp___8 = __VERIFIER_nondet_long() ; [L1131] int tmp___9 ; [L1132] int tmp___10 ; [L1133] int blastFlag ; [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] Time = tmp [L1141] cb = (void (*)())((void *)0) [L1142] ret = -1 [L1143] skip = 0 [L1144] got_new_session = 0 [L1145] EXPR s->info_callback VAL [init=1, SSLv3_server_data={-6:0}] [L1145] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1146] EXPR s->info_callback [L1146] cb = s->info_callback [L1150] EXPR s->in_handshake [L1150] s->in_handshake += 1 [L1151] COND FALSE !(tmp___1 & 12288) VAL [init=1, SSLv3_server_data={-6:0}] [L1160] EXPR s->cert VAL [init=1, SSLv3_server_data={-6:0}] [L1160] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1166] COND TRUE 1 VAL [init=1, SSLv3_server_data={-6:0}] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1193] COND TRUE s->state == 8464 [L1349] s->shutdown = 0 [L1350] ret = __VERIFIER_nondet_int() [L1351] COND TRUE blastFlag == 0 [L1352] blastFlag = 1 VAL [init=1, SSLv3_server_data={-6:0}] [L1356] COND FALSE !(ret <= 0) [L1361] got_new_session = 1 [L1362] s->state = 8496 [L1363] s->init_num = 0 VAL [init=1, SSLv3_server_data={-6:0}] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_server_data={-6:0}] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [init=1, SSLv3_server_data={-6:0}] [L1166] COND TRUE 1 VAL [init=1, SSLv3_server_data={-6:0}] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1202] COND TRUE s->state == 8496 [L1367] ret = __VERIFIER_nondet_int() [L1368] COND TRUE blastFlag == 1 [L1369] blastFlag = 2 VAL [init=1, SSLv3_server_data={-6:0}] [L1373] COND FALSE !(ret <= 0) [L1378] s->hit VAL [init=1, SSLv3_server_data={-6:0}] [L1378] COND TRUE s->hit [L1379] s->state = 8656 VAL [init=1, SSLv3_server_data={-6:0}] [L1383] s->init_num = 0 VAL [init=1, SSLv3_server_data={-6:0}] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_server_data={-6:0}] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [init=1, SSLv3_server_data={-6:0}] [L1166] COND TRUE 1 VAL [init=1, SSLv3_server_data={-6:0}] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1202] COND FALSE !(s->state == 8496) [L1205] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1205] COND FALSE !(s->state == 8497) [L1208] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1208] COND FALSE !(s->state == 8512) [L1211] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1211] COND FALSE !(s->state == 8513) [L1214] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1214] COND FALSE !(s->state == 8528) [L1217] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1217] COND FALSE !(s->state == 8529) [L1220] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1220] COND FALSE !(s->state == 8544) [L1223] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1223] COND FALSE !(s->state == 8545) [L1226] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1226] COND FALSE !(s->state == 8560) [L1229] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1229] COND FALSE !(s->state == 8561) [L1232] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1232] COND FALSE !(s->state == 8448) [L1235] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1235] COND FALSE !(s->state == 8576) [L1238] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1238] COND FALSE !(s->state == 8577) [L1241] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1241] COND FALSE !(s->state == 8592) [L1244] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1244] COND FALSE !(s->state == 8593) [L1247] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1247] COND FALSE !(s->state == 8608) [L1250] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1250] COND FALSE !(s->state == 8609) [L1253] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1253] COND FALSE !(s->state == 8640) [L1256] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1256] COND FALSE !(s->state == 8641) [L1259] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1259] COND TRUE s->state == 8656 [L1583] EXPR s->session [L1583] EXPR s->s3 [L1583] EXPR (s->s3)->tmp.new_cipher [L1583] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1584] tmp___9 = __VERIFIER_nondet_int() [L1585] COND FALSE !(! tmp___9) [L1591] ret = __VERIFIER_nondet_int() [L1592] COND TRUE blastFlag == 2 [L1593] blastFlag = 5 VAL [init=1, SSLv3_server_data={-6:0}] [L1597] COND FALSE !(ret <= 0) [L1602] s->state = 8672 [L1603] s->init_num = 0 [L1604] tmp___10 = __VERIFIER_nondet_int() [L1605] COND FALSE !(! tmp___10) VAL [init=1, SSLv3_server_data={-6:0}] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_server_data={-6:0}] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [init=1, SSLv3_server_data={-6:0}] [L1166] COND TRUE 1 VAL [init=1, SSLv3_server_data={-6:0}] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1202] COND FALSE !(s->state == 8496) [L1205] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1205] COND FALSE !(s->state == 8497) [L1208] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1208] COND FALSE !(s->state == 8512) [L1211] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1211] COND FALSE !(s->state == 8513) [L1214] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1214] COND FALSE !(s->state == 8528) [L1217] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1217] COND FALSE !(s->state == 8529) [L1220] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1220] COND FALSE !(s->state == 8544) [L1223] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1223] COND FALSE !(s->state == 8545) [L1226] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1226] COND FALSE !(s->state == 8560) [L1229] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1229] COND FALSE !(s->state == 8561) [L1232] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1232] COND FALSE !(s->state == 8448) [L1235] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1235] COND FALSE !(s->state == 8576) [L1238] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1238] COND FALSE !(s->state == 8577) [L1241] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1241] COND FALSE !(s->state == 8592) [L1244] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1244] COND FALSE !(s->state == 8593) [L1247] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1247] COND FALSE !(s->state == 8608) [L1250] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1250] COND FALSE !(s->state == 8609) [L1253] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1253] COND FALSE !(s->state == 8640) [L1256] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1256] COND FALSE !(s->state == 8641) [L1259] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1259] COND FALSE !(s->state == 8656) [L1262] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1262] COND FALSE !(s->state == 8657) [L1265] EXPR s->state VAL [init=1, SSLv3_server_data={-6:0}] [L1265] COND TRUE s->state == 8672 [L1614] ret = __VERIFIER_nondet_int() [L1615] COND FALSE !(blastFlag == 4) VAL [init=1, SSLv3_server_data={-6:0}] [L1618] COND TRUE blastFlag == 5 VAL [init=1, SSLv3_server_data={-6:0}] [L1737] reach_error() VAL [init=1, SSLv3_server_data={-6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 147 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.8s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 31.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1393 SDtfs, 1235 SDslu, 2054 SDs, 0 SdLazy, 542 SolverSat, 52 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 30.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 979 GetRequests, 957 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=713occurred in iteration=5, InterpolantAutomatonStates: 23, 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, 108 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 4.4s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 621 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 976 ConstructedInterpolants, 1 QuantifiedInterpolants, 3942 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1387 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 636/636 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 proved your program to be incorrect! [2021-11-07 02:24:37,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f69b49-7af0-4ad9-9e53-ede1f16baca0/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE