./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c6f82e874e2f980b653c53fa0437dd3390b1771d726d8f345336fe56afb2bb6 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c6f82e874e2f980b653c53fa0437dd3390b1771d726d8f345336fe56afb2bb6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:33:19,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:33:19,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:33:19,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:33:19,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:33:19,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:33:19,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:33:19,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:33:19,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:33:19,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:33:19,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:33:19,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:33:19,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:33:19,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:33:19,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:33:19,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:33:19,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:33:19,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:33:19,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:33:19,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:33:19,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:33:19,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:33:19,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:33:19,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:33:19,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:33:19,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:33:19,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:33:19,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:33:19,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:33:19,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:33:19,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:33:19,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:33:19,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:33:19,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:33:19,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:33:19,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:33:19,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:33:19,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:33:19,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:33:19,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:33:19,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:33:19,561 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:33:19,593 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:33:19,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:33:19,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:33:19,595 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:33:19,595 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:33:19,595 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:33:19,596 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:33:19,596 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:33:19,596 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:33:19,597 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:33:19,597 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:33:19,597 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:33:19,598 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:33:19,598 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:33:19,598 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:33:19,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:33:19,599 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:33:19,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:33:19,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:33:19,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:33:19,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:33:19,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:33:19,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:33:19,601 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:33:19,602 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:33:19,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:33:19,602 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:33:19,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:33:19,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:33:19,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:33:19,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:33:19,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:33:19,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:33:19,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:33:19,605 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:33:19,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:33:19,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:33:19,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:33:19,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:33:19,606 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_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c6f82e874e2f980b653c53fa0437dd3390b1771d726d8f345336fe56afb2bb6 [2021-10-24 10:33:19,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:33:19,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:33:19,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:33:19,938 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:33:19,939 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:33:19,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-10-24 10:33:20,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/data/71275fa92/58f0b87f58204893b876fecba6064333/FLAG81fefb5b8 [2021-10-24 10:33:20,933 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:33:20,934 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-10-24 10:33:20,968 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/data/71275fa92/58f0b87f58204893b876fecba6064333/FLAG81fefb5b8 [2021-10-24 10:33:21,085 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/data/71275fa92/58f0b87f58204893b876fecba6064333 [2021-10-24 10:33:21,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:33:21,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:33:21,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:33:21,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:33:21,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:33:21,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:33:21" (1/1) ... [2021-10-24 10:33:21,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9c0805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:21, skipping insertion in model container [2021-10-24 10:33:21,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:33:21" (1/1) ... [2021-10-24 10:33:21,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:33:21,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:33:21,854 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_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-10-24 10:33:21,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:33:21,907 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) [2021-10-24 10:33:21,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@52b77c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:21, skipping insertion in model container [2021-10-24 10:33:21,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:33:21,909 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:33:21,916 INFO L168 Benchmark]: Toolchain (without parser) took 816.25 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 64.9 MB in the beginning and 90.0 MB in the end (delta: -25.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:33:21,917 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 100.7 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:33:21,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.41 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 64.7 MB in the beginning and 90.0 MB in the end (delta: -25.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:33:21,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 100.7 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 810.41 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 64.7 MB in the beginning and 90.0 MB in the end (delta: -25.3 MB). Peak memory consumption was 16.8 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:33:24,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:33:24,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:33:25,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:33:25,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:33:25,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:33:25,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:33:25,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:33:25,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:33:25,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:33:25,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:33:25,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:33:25,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:33:25,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:33:25,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:33:25,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:33:25,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:33:25,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:33:25,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:33:25,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:33:25,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:33:25,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:33:25,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:33:25,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:33:25,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:33:25,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:33:25,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:33:25,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:33:25,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:33:25,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:33:25,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:33:25,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:33:25,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:33:25,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:33:25,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:33:25,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:33:25,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:33:25,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:33:25,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:33:25,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:33:25,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:33:25,156 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:33:25,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:33:25,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:33:25,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:33:25,202 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:33:25,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:33:25,203 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:33:25,203 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:33:25,203 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:33:25,204 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:33:25,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:33:25,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:33:25,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:33:25,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:33:25,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:33:25,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:33:25,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:33:25,207 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:33:25,207 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:33:25,208 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:33:25,208 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:33:25,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:33:25,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:33:25,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:33:25,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:33:25,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:33:25,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:33:25,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:33:25,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:33:25,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:33:25,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:33:25,211 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:33:25,211 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:33:25,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:33:25,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:33:25,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:33:25,213 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_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c6f82e874e2f980b653c53fa0437dd3390b1771d726d8f345336fe56afb2bb6 [2021-10-24 10:33:25,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:33:25,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:33:25,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:33:25,719 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:33:25,721 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:33:25,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-10-24 10:33:25,807 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/data/38d04c4dd/30d9ec6928e24dc9a589f742ee658305/FLAG282134fea [2021-10-24 10:33:26,707 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:33:26,708 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-10-24 10:33:26,737 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/data/38d04c4dd/30d9ec6928e24dc9a589f742ee658305/FLAG282134fea [2021-10-24 10:33:26,811 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/data/38d04c4dd/30d9ec6928e24dc9a589f742ee658305 [2021-10-24 10:33:26,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:33:26,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:33:26,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:33:26,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:33:26,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:33:26,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:33:26" (1/1) ... [2021-10-24 10:33:26,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e494e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:26, skipping insertion in model container [2021-10-24 10:33:26,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:33:26" (1/1) ... [2021-10-24 10:33:26,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:33:26,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:33:27,675 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_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-10-24 10:33:27,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:33:27,742 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:33:27,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:33:27,881 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_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-10-24 10:33:27,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:33:27,909 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:33:28,140 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_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-10-24 10:33:28,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:33:28,168 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:33:28,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:28 WrapperNode [2021-10-24 10:33:28,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:33:28,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:33:28,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:33:28,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:33:28,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:28" (1/1) ... [2021-10-24 10:33:28,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:28" (1/1) ... [2021-10-24 10:33:28,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:33:28,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:33:28,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:33:28,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:33:28,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:28" (1/1) ... [2021-10-24 10:33:28,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:28" (1/1) ... [2021-10-24 10:33:28,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:28" (1/1) ... [2021-10-24 10:33:28,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:28" (1/1) ... [2021-10-24 10:33:28,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:28" (1/1) ... [2021-10-24 10:33:28,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:28" (1/1) ... [2021-10-24 10:33:28,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:28" (1/1) ... [2021-10-24 10:33:28,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:33:28,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:33:28,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:33:28,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:33:28,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:28" (1/1) ... [2021-10-24 10:33:28,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:33:28,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:33:28,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:33:28,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:33:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:33:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-24 10:33:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:33:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-24 10:33:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-24 10:33:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-24 10:33:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:33:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:33:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-24 10:33:28,928 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:33:39,539 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-24 10:33:39,539 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-24 10:33:39,550 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:33:39,551 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-24 10:33:39,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:33:39 BoogieIcfgContainer [2021-10-24 10:33:39,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:33:39,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:33:39,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:33:39,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:33:39,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:33:26" (1/3) ... [2021-10-24 10:33:39,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f61a6df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:33:39, skipping insertion in model container [2021-10-24 10:33:39,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:33:28" (2/3) ... [2021-10-24 10:33:39,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f61a6df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:33:39, skipping insertion in model container [2021-10-24 10:33:39,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:33:39" (3/3) ... [2021-10-24 10:33:39,566 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-2.c [2021-10-24 10:33:39,573 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:33:39,574 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:33:39,635 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:33:39,643 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 [2021-10-24 10:33:39,644 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:33:39,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 148 states have (on average 1.7162162162162162) internal successors, (254), 149 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:39,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-24 10:33:39,689 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:33:39,690 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:33:39,692 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:33:39,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:33:39,706 INFO L82 PathProgramCache]: Analyzing trace with hash -442385418, now seen corresponding path program 1 times [2021-10-24 10:33:39,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:33:39,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621253312] [2021-10-24 10:33:39,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:33:39,734 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:33:39,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:33:39,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:33:39,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:33:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:33:40,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:33:40,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:33:40,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:33:40,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:33:40,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:33:40,797 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:33:40,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621253312] [2021-10-24 10:33:40,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621253312] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:33:40,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:33:40,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:33:40,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670989064] [2021-10-24 10:33:40,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:33:40,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:33:40,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:33:40,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:33:40,829 INFO L87 Difference]: Start difference. First operand has 150 states, 148 states have (on average 1.7162162162162162) internal successors, (254), 149 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:41,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:33:41,135 INFO L93 Difference]: Finished difference Result 566 states and 965 transitions. [2021-10-24 10:33:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:33:41,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-24 10:33:41,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:33:41,169 INFO L225 Difference]: With dead ends: 566 [2021-10-24 10:33:41,169 INFO L226 Difference]: Without dead ends: 387 [2021-10-24 10:33:41,175 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:33:41,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-10-24 10:33:41,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2021-10-24 10:33:41,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.5286458333333333) internal successors, (587), 384 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:41,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 587 transitions. [2021-10-24 10:33:41,264 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 587 transitions. Word has length 37 [2021-10-24 10:33:41,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:33:41,265 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 587 transitions. [2021-10-24 10:33:41,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:41,265 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 587 transitions. [2021-10-24 10:33:41,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-24 10:33:41,270 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:33:41,271 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:33:41,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:33:41,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:33:41,488 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:33:41,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:33:41,489 INFO L82 PathProgramCache]: Analyzing trace with hash 746604405, now seen corresponding path program 1 times [2021-10-24 10:33:41,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:33:41,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923776459] [2021-10-24 10:33:41,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:33:41,492 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:33:41,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:33:41,494 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:33:41,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:33:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:33:41,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:33:41,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:33:42,175 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:33:42,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:33:42,499 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:33:42,500 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:33:42,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923776459] [2021-10-24 10:33:42,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923776459] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:33:42,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:33:42,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:33:42,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053618399] [2021-10-24 10:33:42,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:33:42,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:33:42,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:33:42,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:33:42,509 INFO L87 Difference]: Start difference. First operand 385 states and 587 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:43,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:33:43,291 INFO L93 Difference]: Finished difference Result 879 states and 1353 transitions. [2021-10-24 10:33:43,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:33:43,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-10-24 10:33:43,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:33:43,299 INFO L225 Difference]: With dead ends: 879 [2021-10-24 10:33:43,299 INFO L226 Difference]: Without dead ends: 628 [2021-10-24 10:33:43,302 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:33:43,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2021-10-24 10:33:43,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 626. [2021-10-24 10:33:43,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 625 states have (on average 1.52) internal successors, (950), 625 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:43,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 950 transitions. [2021-10-24 10:33:43,385 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 950 transitions. Word has length 60 [2021-10-24 10:33:43,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:33:43,386 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 950 transitions. [2021-10-24 10:33:43,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:43,397 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 950 transitions. [2021-10-24 10:33:43,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-10-24 10:33:43,412 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:33:43,414 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:33:43,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:33:43,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:33:43,632 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:33:43,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:33:43,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1749353389, now seen corresponding path program 1 times [2021-10-24 10:33:43,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:33:43,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409982017] [2021-10-24 10:33:43,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:33:43,636 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:33:43,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:33:43,654 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:33:43,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:33:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:33:44,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:33:44,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:33:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-24 10:33:44,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:33:45,234 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-24 10:33:45,235 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:33:45,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409982017] [2021-10-24 10:33:45,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409982017] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:33:45,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:33:45,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:33:45,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042345871] [2021-10-24 10:33:45,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:33:45,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:33:45,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:33:45,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:33:45,239 INFO L87 Difference]: Start difference. First operand 626 states and 950 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:46,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:33:46,203 INFO L93 Difference]: Finished difference Result 1238 states and 1888 transitions. [2021-10-24 10:33:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:33:46,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-10-24 10:33:46,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:33:46,212 INFO L225 Difference]: With dead ends: 1238 [2021-10-24 10:33:46,213 INFO L226 Difference]: Without dead ends: 746 [2021-10-24 10:33:46,214 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:33:46,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-10-24 10:33:46,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2021-10-24 10:33:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 745 states have (on average 1.516778523489933) internal successors, (1130), 745 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:46,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1130 transitions. [2021-10-24 10:33:46,248 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1130 transitions. Word has length 119 [2021-10-24 10:33:46,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:33:46,249 INFO L470 AbstractCegarLoop]: Abstraction has 746 states and 1130 transitions. [2021-10-24 10:33:46,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:46,250 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1130 transitions. [2021-10-24 10:33:46,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-10-24 10:33:46,253 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:33:46,253 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:33:46,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:33:46,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:33:46,471 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:33:46,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:33:46,471 INFO L82 PathProgramCache]: Analyzing trace with hash 433077792, now seen corresponding path program 1 times [2021-10-24 10:33:46,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:33:46,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566887010] [2021-10-24 10:33:46,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:33:46,474 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:33:46,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:33:46,477 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:33:46,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:33:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:33:46,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:33:46,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:33:47,480 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-24 10:33:47,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:33:47,946 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-24 10:33:47,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:33:47,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566887010] [2021-10-24 10:33:47,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566887010] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:33:47,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:33:47,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:33:47,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679945030] [2021-10-24 10:33:47,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:33:47,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:33:47,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:33:47,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:33:47,949 INFO L87 Difference]: Start difference. First operand 746 states and 1130 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:48,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:33:48,551 INFO L93 Difference]: Finished difference Result 1605 states and 2443 transitions. [2021-10-24 10:33:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:33:48,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-10-24 10:33:48,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:33:48,561 INFO L225 Difference]: With dead ends: 1605 [2021-10-24 10:33:48,561 INFO L226 Difference]: Without dead ends: 993 [2021-10-24 10:33:48,563 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:33:48,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-10-24 10:33:48,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2021-10-24 10:33:48,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.5141129032258065) internal successors, (1502), 992 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:48,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1502 transitions. [2021-10-24 10:33:48,624 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1502 transitions. Word has length 143 [2021-10-24 10:33:48,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:33:48,625 INFO L470 AbstractCegarLoop]: Abstraction has 993 states and 1502 transitions. [2021-10-24 10:33:48,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:33:48,625 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1502 transitions. [2021-10-24 10:33:48,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-10-24 10:33:48,630 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:33:48,630 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:33:48,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:33:48,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:33:48,851 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:33:48,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:33:48,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1035961974, now seen corresponding path program 1 times [2021-10-24 10:33:48,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:33:48,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250685736] [2021-10-24 10:33:48,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:33:48,854 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:33:48,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:33:48,856 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:33:48,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:33:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:33:49,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-24 10:33:49,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:33:49,937 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 [2021-10-24 10:33:49,953 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 [2021-10-24 10:33:50,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:33:50,086 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-10-24 10:33:50,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:33:50,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 336 [2021-10-24 10:33:50,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 336 treesize of output 319 [2021-10-24 10:33:50,696 INFO L354 Elim1Store]: treesize reduction 1607, result has 2.8 percent of original size [2021-10-24 10:33:50,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 717 treesize of output 669 [2021-10-24 10:33:50,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:33:50,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-10-24 10:33:50,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 210 [2021-10-24 10:33:50,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 101 [2021-10-24 10:33:50,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:50,948 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 [2021-10-24 10:33:51,095 INFO L354 Elim1Store]: treesize reduction 340, result has 2.6 percent of original size [2021-10-24 10:33:51,096 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 [2021-10-24 10:33:51,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:51,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:51,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:51,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:51,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:51,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:51,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:51,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:51,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:51,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:33:51,139 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 [2021-10-24 10:33:51,183 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 [2021-10-24 10:33:51,190 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 [2021-10-24 10:33:51,800 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-10-24 10:33:51,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:33:52,554 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:33:52,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-10-24 10:33:52,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:33:52,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-10-24 10:33:52,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:33:52,775 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 393 [2021-10-24 10:33:52,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:33:52,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 510 [2021-10-24 10:33:52,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:33:52,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 687 [2021-10-24 10:33:52,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:33:52,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 744 [2021-10-24 10:33:52,849 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:33:52,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 861 [2021-10-24 10:33:52,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:33:52,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1038 [2021-10-24 10:33:53,543 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-10-24 10:33:53,543 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:33:53,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250685736] [2021-10-24 10:33:53,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250685736] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:33:53,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:33:53,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 10:33:53,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554828160] [2021-10-24 10:33:53,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:33:53,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:33:53,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:33:53,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:33:53,548 INFO L87 Difference]: Start difference. First operand 993 states and 1502 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:34:25,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:34:25,213 INFO L93 Difference]: Finished difference Result 1983 states and 3000 transitions. [2021-10-24 10:34:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:34:25,215 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2021-10-24 10:34:25,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:34:25,223 INFO L225 Difference]: With dead ends: 1983 [2021-10-24 10:34:25,223 INFO L226 Difference]: Without dead ends: 993 [2021-10-24 10:34:25,225 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 323 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 310.2ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:34:25,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-10-24 10:34:25,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2021-10-24 10:34:25,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.5131048387096775) internal successors, (1501), 992 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:34:25,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1501 transitions. [2021-10-24 10:34:25,272 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1501 transitions. Word has length 166 [2021-10-24 10:34:25,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:34:25,273 INFO L470 AbstractCegarLoop]: Abstraction has 993 states and 1501 transitions. [2021-10-24 10:34:25,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:34:25,290 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1501 transitions. [2021-10-24 10:34:25,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-10-24 10:34:25,296 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:34:25,296 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:34:25,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:34:25,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:34:25,520 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:34:25,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:34:25,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1534397000, now seen corresponding path program 1 times [2021-10-24 10:34:25,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:34:25,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419000056] [2021-10-24 10:34:25,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:34:25,523 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:34:25,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:34:25,524 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:34:25,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:34:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:34:28,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 59 conjunts are in the unsatisfiable core [2021-10-24 10:34:28,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:34:28,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5171 treesize of output 5135 [2021-10-24 10:34:28,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:34:28,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7195 [2021-10-24 10:34:28,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7619 treesize of output 7245 [2021-10-24 10:34:28,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:34:28,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 5484 treesize of output 5077 [2021-10-24 10:35:06,998 WARN L207 SmtUtils]: Spent 38.24 s on a formula simplification. DAG size of input: 31 DAG size of output: 9 [2021-10-24 10:35:06,998 INFO L354 Elim1Store]: treesize reduction 58, result has 15.9 percent of original size [2021-10-24 10:35:06,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 5659 treesize of output 5392 [2021-10-24 10:35:07,043 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:35:07,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 5598 treesize of output 5389 [2021-10-24 10:35:07,054 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-10-24 10:37:50,254 WARN L207 SmtUtils]: Spent 2.72 m on a formula simplification. DAG size of input: 110 DAG size of output: 29 [2021-10-24 10:37:50,254 INFO L354 Elim1Store]: treesize reduction 1868, result has 2.5 percent of original size [2021-10-24 10:37:50,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 5569 treesize of output 5409 [2021-10-24 10:37:50,284 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 5642 treesize of output 5426 [2021-10-24 10:37:50,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:37:50,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8310 [2021-10-24 10:37:50,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:37:50,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13065 [2021-10-24 10:37:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 7653 treesize of output 6817 [2021-10-24 10:37:50,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:37:50,775 INFO L244 Elim1Store]: Index analysis took 175 ms [2021-10-24 10:37:50,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 66 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5023 treesize of output 4892 [2021-10-24 10:38:43,210 WARN L207 SmtUtils]: Spent 52.36 s on a formula simplification. DAG size of input: 41 DAG size of output: 15 [2021-10-24 10:38:43,210 INFO L354 Elim1Store]: treesize reduction 130, result has 13.9 percent of original size [2021-10-24 10:38:43,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 4811 treesize of output 4725 [2021-10-24 10:38:43,219 INFO L883 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-10-24 10:38:43,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 4728 treesize of output 4732 [2021-10-24 10:38:43,330 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-24 10:38:43,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4732 treesize of output 4716 [2021-10-24 10:38:43,393 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-24 10:38:43,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4711 treesize of output 4701 [2021-10-24 10:38:43,438 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 4690 treesize of output 4678 [2021-10-24 10:38:43,487 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:38:43,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419000056] [2021-10-24 10:38:43,488 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Some non-self update cases but no top-level DER relation [2021-10-24 10:38:43,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1926380531] [2021-10-24 10:38:43,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:38:43,489 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:38:43,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:38:43,495 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:38:43,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-24 10:41:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:41:10,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-24 10:41:10,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@4765f528 [2021-10-24 10:41:10,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418102385] [2021-10-24 10:41:10,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:41:10,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:41:10,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:41:10,398 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:41:10,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-24 10:41:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:41:13,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-24 10:41:13,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@4765f528 [2021-10-24 10:41:13,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:41:13,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-24 10:41:13,324 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-24 10:41:13,324 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-24 10:41:13,336 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:41:13,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-10-24 10:41:13,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-24 10:41:13,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-24 10:41:13,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:41:13,972 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:41:14,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:41:14 BoogieIcfgContainer [2021-10-24 10:41:14,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:41:14,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:41:14,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:41:14,049 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:41:14,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:33:39" (3/4) ... [2021-10-24 10:41:14,054 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:41:14,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:41:14,055 INFO L168 Benchmark]: Toolchain (without parser) took 467233.69 ms. Allocated memory was 71.3 MB in the beginning and 121.6 MB in the end (delta: 50.3 MB). Free memory was 49.8 MB in the beginning and 68.4 MB in the end (delta: -18.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:41:14,056 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 71.3 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:41:14,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1343.18 ms. Allocated memory is still 71.3 MB. Free memory was 49.6 MB in the beginning and 39.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:41:14,057 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.55 ms. Allocated memory is still 71.3 MB. Free memory was 39.6 MB in the beginning and 34.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:41:14,057 INFO L168 Benchmark]: Boogie Preprocessor took 135.25 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 34.9 MB in the beginning and 71.6 MB in the end (delta: -36.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:41:14,058 INFO L168 Benchmark]: RCFGBuilder took 11106.57 ms. Allocated memory is still 96.5 MB. Free memory was 71.6 MB in the beginning and 60.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. [2021-10-24 10:41:14,058 INFO L168 Benchmark]: TraceAbstraction took 454491.25 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 60.9 MB in the beginning and 69.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:41:14,059 INFO L168 Benchmark]: Witness Printer took 5.39 ms. Allocated memory is still 121.6 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:41:14,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 71.3 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1343.18 ms. Allocated memory is still 71.3 MB. Free memory was 49.6 MB in the beginning and 39.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 140.55 ms. Allocated memory is still 71.3 MB. Free memory was 39.6 MB in the beginning and 34.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 135.25 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 34.9 MB in the beginning and 71.6 MB in the end (delta: -36.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11106.57 ms. Allocated memory is still 96.5 MB. Free memory was 71.6 MB in the beginning and 60.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 454491.25 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 60.9 MB in the beginning and 69.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.39 ms. Allocated memory is still 121.6 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1757]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1087] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1088] s->options = __VERIFIER_nondet_ulong() [L1089] s->verify_mode = __VERIFIER_nondet_int() [L1090] EXPR s->session [L1090] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1091] EXPR s->s3 [L1091] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1093] EXPR s->s3 [L1093] EXPR (s->s3)->tmp.new_cipher [L1093] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1095] COND FALSE !(__VERIFIER_nondet_int()) [L1101] s->cert = malloc(sizeof(struct cert_st)) [L1102] EXPR s->cert [L1102] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1111] BUF_MEM *buf ; [L1112] unsigned long l ; [L1113] unsigned long Time ; [L1114] unsigned long tmp ; [L1115] void (*cb)() ; [L1116] long num1 ; [L1117] int ret ; [L1118] int new_state ; [L1119] int state ; [L1120] int skip ; [L1121] int got_new_session ; [L1122] int tmp___1 = __VERIFIER_nondet_int() ; [L1123] int tmp___2 = __VERIFIER_nondet_int() ; [L1124] int tmp___3 = __VERIFIER_nondet_int() ; [L1125] int tmp___4 = __VERIFIER_nondet_int() ; [L1126] int tmp___5 = __VERIFIER_nondet_int() ; [L1127] int tmp___6 = __VERIFIER_nondet_int() ; [L1128] int tmp___7 ; [L1129] long tmp___8 = __VERIFIER_nondet_long() ; [L1130] int tmp___9 = __VERIFIER_nondet_int() ; [L1131] int tmp___10 = __VERIFIER_nondet_int() ; [L1132] int blastFlag ; [L1136] s->state = 8464 [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) [L1161] EXPR s->cert [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 [L1378] COND FALSE !(ret <= 0) [L1383] s->hit [L1383] COND TRUE s->hit [L1384] s->state = 8656 [L1388] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND TRUE s->state == 8656 [L1601] EXPR s->session [L1601] EXPR s->s3 [L1601] EXPR (s->s3)->tmp.new_cipher [L1601] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1602] COND FALSE !(! tmp___9) [L1608] ret = __VERIFIER_nondet_int() [L1609] COND TRUE blastFlag == 2 [L1610] blastFlag = 3 [L1622] COND FALSE !(ret <= 0) [L1627] s->state = 8672 [L1628] s->init_num = 0 [L1629] COND FALSE !(! tmp___10) [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND FALSE !(s->state == 8656) [L1263] EXPR s->state [L1263] COND FALSE !(s->state == 8657) [L1266] EXPR s->state [L1266] COND TRUE s->state == 8672 [L1638] ret = __VERIFIER_nondet_int() [L1639] COND TRUE blastFlag == 3 [L1640] blastFlag = 4 [L1644] COND FALSE !(ret <= 0) [L1649] s->state = 8448 [L1650] s->hit [L1650] COND TRUE s->hit [L1651] EXPR s->s3 [L1651] (s->s3)->tmp.next_state = 8640 [L1655] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND TRUE s->state == 8640 [L1581] ret = __VERIFIER_nondet_int() [L1582] COND TRUE blastFlag == 4 [L1757] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 150 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 454337.7ms, OverallIterations: 6, TraceHistogramMax: 5, EmptinessCheckTime: 60.2ms, AutomataDifference: 34432.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1545 SDtfs, 1147 SDslu, 2282 SDs, 0 SdLazy, 516 SolverSat, 73 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 33009.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1042 GetRequests, 1026 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 372.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=993occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 294.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 271.8ms SsaConstructionTime, 1393.6ms SatisfiabilityAnalysisTime, 7305.3ms InterpolantComputationTime, 525 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1040 ConstructedInterpolants, 1 QuantifiedInterpolants, 2069 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1459 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 912/912 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-24 10:41:14,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa61d48a-ca31-4616-ab99-e88dcfcfbddf/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...