./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ssh/s3_clnt.blast.02.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ssh/s3_clnt.blast.02.i.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1a8c31b6096ea6fe5b4c20c6d9bfd1b6b4c291f ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ssh/s3_clnt.blast.02.i.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1a8c31b6096ea6fe5b4c20c6d9bfd1b6b4c291f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:17:12,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:17:12,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:17:12,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:17:12,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:17:12,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:17:12,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:17:12,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:17:12,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:17:12,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:17:12,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:17:12,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:17:12,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:17:12,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:17:12,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:17:12,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:17:12,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:17:12,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:17:12,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:17:12,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:17:12,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:17:12,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:17:12,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:17:12,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:17:12,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:17:12,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:17:12,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:17:12,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:17:12,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:17:12,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:17:12,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:17:12,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:17:12,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:17:12,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:17:12,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:17:12,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:17:12,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:17:12,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:17:12,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:17:12,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:17:12,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:17:12,543 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 13:17:12,557 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:17:12,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:17:12,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:17:12,558 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:17:12,558 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:17:12,558 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:17:12,558 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 13:17:12,558 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:17:12,559 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:17:12,559 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 13:17:12,559 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 13:17:12,559 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:17:12,559 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 13:17:12,560 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 13:17:12,560 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 13:17:12,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:17:12,561 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:17:12,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:17:12,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:17:12,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:17:12,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:17:12,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:17:12,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:17:12,562 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:17:12,562 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:17:12,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:17:12,562 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:17:12,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:17:12,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:17:12,563 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:17:12,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:17:12,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:17:12,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:17:12,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:17:12,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:17:12,564 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 13:17:12,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:17:12,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:17:12,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:17:12,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:17:12,565 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan 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(__VERIFIER_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 -> f1a8c31b6096ea6fe5b4c20c6d9bfd1b6b4c291f [2019-12-07 13:17:12,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:17:12,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:17:12,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:17:12,679 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:17:12,679 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:17:12,680 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/../../sv-benchmarks/c/ssh/s3_clnt.blast.02.i.cil-2.c [2019-12-07 13:17:12,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/data/b7d288738/e1671f21a0354f798b8762e8d7ebd6a1/FLAG45ba2e7c9 [2019-12-07 13:17:13,221 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:17:13,221 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/sv-benchmarks/c/ssh/s3_clnt.blast.02.i.cil-2.c [2019-12-07 13:17:13,234 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/data/b7d288738/e1671f21a0354f798b8762e8d7ebd6a1/FLAG45ba2e7c9 [2019-12-07 13:17:13,699 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/data/b7d288738/e1671f21a0354f798b8762e8d7ebd6a1 [2019-12-07 13:17:13,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:17:13,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:17:13,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:17:13,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:17:13,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:17:13,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:17:13" (1/1) ... [2019-12-07 13:17:13,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d89530c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:13, skipping insertion in model container [2019-12-07 13:17:13,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:17:13" (1/1) ... [2019-12-07 13:17:13,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:17:13,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:17:14,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:17:14,017 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) [2019-12-07 13:17:14,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3c78741e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:14, skipping insertion in model container [2019-12-07 13:17:14,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:17:14,018 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 13:17:14,019 INFO L168 Benchmark]: Toolchain (without parser) took 316.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -141.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:17:14,020 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:17:14,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -141.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:17:14,021 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 315.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -141.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1039]: 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 0.1.25-f470102 [2019-12-07 13:17:15,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:17:15,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:17:15,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:17:15,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:17:15,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:17:15,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:17:15,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:17:15,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:17:15,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:17:15,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:17:15,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:17:15,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:17:15,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:17:15,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:17:15,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:17:15,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:17:15,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:17:15,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:17:15,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:17:15,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:17:15,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:17:15,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:17:15,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:17:15,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:17:15,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:17:15,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:17:15,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:17:15,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:17:15,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:17:15,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:17:15,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:17:15,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:17:15,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:17:15,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:17:15,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:17:15,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:17:15,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:17:15,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:17:15,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:17:15,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:17:15,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 13:17:15,225 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:17:15,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:17:15,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:17:15,226 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:17:15,226 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:17:15,227 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:17:15,227 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:17:15,227 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:17:15,227 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:17:15,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:17:15,228 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:17:15,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:17:15,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:17:15,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:17:15,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:17:15,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:17:15,229 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:17:15,229 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:17:15,229 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:17:15,229 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:17:15,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:17:15,229 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:17:15,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:17:15,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:17:15,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:17:15,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:17:15,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:17:15,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:17:15,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:17:15,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:17:15,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:17:15,231 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 13:17:15,231 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:17:15,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:17:15,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:17:15,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:17:15,231 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan 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(__VERIFIER_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 -> f1a8c31b6096ea6fe5b4c20c6d9bfd1b6b4c291f [2019-12-07 13:17:15,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:17:15,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:17:15,422 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:17:15,423 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:17:15,423 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:17:15,424 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/../../sv-benchmarks/c/ssh/s3_clnt.blast.02.i.cil-2.c [2019-12-07 13:17:15,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/data/d9ff4d90d/61a6b817293443a8903791ee1d1005d9/FLAG83ffaf9d2 [2019-12-07 13:17:15,972 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:17:15,972 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/sv-benchmarks/c/ssh/s3_clnt.blast.02.i.cil-2.c [2019-12-07 13:17:15,984 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/data/d9ff4d90d/61a6b817293443a8903791ee1d1005d9/FLAG83ffaf9d2 [2019-12-07 13:17:16,491 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/data/d9ff4d90d/61a6b817293443a8903791ee1d1005d9 [2019-12-07 13:17:16,493 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:17:16,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:17:16,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:17:16,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:17:16,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:17:16,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:17:16" (1/1) ... [2019-12-07 13:17:16,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2636b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:16, skipping insertion in model container [2019-12-07 13:17:16,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:17:16" (1/1) ... [2019-12-07 13:17:16,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:17:16,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:17:16,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:17:16,841 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 13:17:16,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:17:16,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:17:16,926 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:17:16,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:17:17,015 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:17:17,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:17 WrapperNode [2019-12-07 13:17:17,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:17:17,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:17:17,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:17:17,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:17:17,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:17" (1/1) ... [2019-12-07 13:17:17,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:17" (1/1) ... [2019-12-07 13:17:17,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:17:17,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:17:17,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:17:17,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:17:17,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:17" (1/1) ... [2019-12-07 13:17:17,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:17" (1/1) ... [2019-12-07 13:17:17,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:17" (1/1) ... [2019-12-07 13:17:17,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:17" (1/1) ... [2019-12-07 13:17:17,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:17" (1/1) ... [2019-12-07 13:17:17,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:17" (1/1) ... [2019-12-07 13:17:17,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:17" (1/1) ... [2019-12-07 13:17:17,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:17:17,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:17:17,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:17:17,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:17:17,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:17:17,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 13:17:17,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:17:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 13:17:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 13:17:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 13:17:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:17:17,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:17:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 13:17:17,356 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 13:17:26,535 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2019-12-07 13:17:26,535 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2019-12-07 13:17:26,536 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:17:26,537 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 13:17:26,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:17:26 BoogieIcfgContainer [2019-12-07 13:17:26,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:17:26,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:17:26,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:17:26,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:17:26,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:17:16" (1/3) ... [2019-12-07 13:17:26,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715a8e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:17:26, skipping insertion in model container [2019-12-07 13:17:26,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:17:17" (2/3) ... [2019-12-07 13:17:26,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715a8e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:17:26, skipping insertion in model container [2019-12-07 13:17:26,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:17:26" (3/3) ... [2019-12-07 13:17:26,543 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.02.i.cil-2.c [2019-12-07 13:17:26,550 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:17:26,555 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:17:26,563 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:17:26,579 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:17:26,579 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:17:26,580 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:17:26,580 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:17:26,580 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:17:26,580 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:17:26,580 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:17:26,580 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:17:26,592 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-12-07 13:17:26,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 13:17:26,597 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:17:26,597 INFO L410 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] [2019-12-07 13:17:26,598 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:17:26,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:17:26,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2019-12-07 13:17:26,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:17:26,610 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587908562] [2019-12-07 13:17:26,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 13:17:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:17:26,762 INFO L264 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:17:26,767 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:17:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:17:26,794 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:17:26,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:17:26,807 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587908562] [2019-12-07 13:17:26,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:17:26,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 13:17:26,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358488216] [2019-12-07 13:17:26,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:17:26,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:17:26,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:17:26,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:17:26,823 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 4 states. [2019-12-07 13:17:26,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:17:26,924 INFO L93 Difference]: Finished difference Result 487 states and 823 transitions. [2019-12-07 13:17:26,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:17:26,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 13:17:26,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:17:26,941 INFO L225 Difference]: With dead ends: 487 [2019-12-07 13:17:26,941 INFO L226 Difference]: Without dead ends: 314 [2019-12-07 13:17:26,945 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:17:26,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-12-07 13:17:26,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2019-12-07 13:17:26,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2019-12-07 13:17:26,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 471 transitions. [2019-12-07 13:17:26,997 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 471 transitions. Word has length 24 [2019-12-07 13:17:26,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:17:26,998 INFO L462 AbstractCegarLoop]: Abstraction has 314 states and 471 transitions. [2019-12-07 13:17:26,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:17:26,998 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 471 transitions. [2019-12-07 13:17:27,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-12-07 13:17:27,002 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:17:27,002 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:17:27,203 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:17:27,203 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:17:27,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:17:27,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1550083377, now seen corresponding path program 1 times [2019-12-07 13:17:27,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:17:27,207 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23370602] [2019-12-07 13:17:27,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 13:17:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:17:27,471 INFO L264 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:17:27,475 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:17:27,484 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:17:27,484 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:17:27,496 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:17:27,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23370602] [2019-12-07 13:17:27,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:17:27,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 13:17:27,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818475189] [2019-12-07 13:17:27,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:17:27,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:17:27,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:17:27,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:17:27,499 INFO L87 Difference]: Start difference. First operand 314 states and 471 transitions. Second operand 4 states. [2019-12-07 13:17:29,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:17:29,577 INFO L93 Difference]: Finished difference Result 722 states and 1089 transitions. [2019-12-07 13:17:29,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:17:29,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2019-12-07 13:17:29,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:17:29,582 INFO L225 Difference]: With dead ends: 722 [2019-12-07 13:17:29,582 INFO L226 Difference]: Without dead ends: 515 [2019-12-07 13:17:29,584 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:17:29,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2019-12-07 13:17:29,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2019-12-07 13:17:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2019-12-07 13:17:29,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 769 transitions. [2019-12-07 13:17:29,614 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 769 transitions. Word has length 55 [2019-12-07 13:17:29,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:17:29,615 INFO L462 AbstractCegarLoop]: Abstraction has 515 states and 769 transitions. [2019-12-07 13:17:29,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:17:29,615 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 769 transitions. [2019-12-07 13:17:29,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-12-07 13:17:29,620 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:17:29,620 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:17:29,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 13:17:29,821 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:17:29,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:17:29,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1327788827, now seen corresponding path program 1 times [2019-12-07 13:17:29,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:17:29,824 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574858713] [2019-12-07 13:17:29,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 13:17:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:17:30,067 INFO L264 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:17:30,071 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:17:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-12-07 13:17:30,082 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:17:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-12-07 13:17:30,097 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574858713] [2019-12-07 13:17:30,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:17:30,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 13:17:30,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617538866] [2019-12-07 13:17:30,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:17:30,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:17:30,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:17:30,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:17:30,099 INFO L87 Difference]: Start difference. First operand 515 states and 769 transitions. Second operand 4 states. [2019-12-07 13:17:32,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:17:32,173 INFO L93 Difference]: Finished difference Result 1224 states and 1832 transitions. [2019-12-07 13:17:32,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:17:32,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-12-07 13:17:32,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:17:32,177 INFO L225 Difference]: With dead ends: 1224 [2019-12-07 13:17:32,177 INFO L226 Difference]: Without dead ends: 816 [2019-12-07 13:17:32,179 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:17:32,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2019-12-07 13:17:32,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 718. [2019-12-07 13:17:32,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 718 states. [2019-12-07 13:17:32,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1069 transitions. [2019-12-07 13:17:32,197 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1069 transitions. Word has length 94 [2019-12-07 13:17:32,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:17:32,197 INFO L462 AbstractCegarLoop]: Abstraction has 718 states and 1069 transitions. [2019-12-07 13:17:32,197 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:17:32,197 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1069 transitions. [2019-12-07 13:17:32,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-12-07 13:17:32,199 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:17:32,199 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:17:32,400 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 13:17:32,400 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:17:32,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:17:32,401 INFO L82 PathProgramCache]: Analyzing trace with hash -856312524, now seen corresponding path program 1 times [2019-12-07 13:17:32,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:17:32,403 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808427347] [2019-12-07 13:17:32,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 13:17:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:17:32,783 INFO L264 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 13:17:32,787 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:17:32,813 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 13:17:32,814 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 13:17:32,815 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 13:17:32,816 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 13:17:32,817 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 13:17:32,818 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 13:27:21,333 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-12-07 13:27:21,334 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808427347] [2019-12-07 13:27:21,335 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") [2019-12-07 13:27:21,335 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [171141881] [2019-12-07 13:27:21,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:27:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:27:22,265 INFO L264 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 13:27:22,266 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken [2019-12-07 13:27:22,267 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068051590] [2019-12-07 13:27:22,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a9102b-eb8d-40fd-96c9-fa701b91984e/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:27:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:27:22,413 INFO L264 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:27:22,417 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:27:22,424 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by |v_#memory_int_173| [2019-12-07 13:27:22,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:27:22,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2019-12-07 13:27:22,424 ERROR L206 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2019-12-07 13:27:22,425 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:27:23,030 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt --rewrite-divk,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:27:23,064 WARN L229 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-12-07 13:27:23,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:27:23 BoogieIcfgContainer [2019-12-07 13:27:23,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:27:23,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:27:23,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:27:23,065 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:27:23,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:17:26" (3/4) ... [2019-12-07 13:27:23,068 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 13:27:23,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:27:23,069 INFO L168 Benchmark]: Toolchain (without parser) took 606574.78 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 271.6 MB). Free memory was 947.0 MB in the beginning and 802.6 MB in the end (delta: 144.4 MB). Peak memory consumption was 416.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:27:23,070 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:27:23,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -115.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:27:23,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:27:23,071 INFO L168 Benchmark]: Boogie Preprocessor took 63.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:27:23,071 INFO L168 Benchmark]: RCFGBuilder took 9398.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 937.7 MB in the end (delta: 117.8 MB). Peak memory consumption was 117.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:27:23,072 INFO L168 Benchmark]: TraceAbstraction took 596526.45 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 151.0 MB). Free memory was 937.7 MB in the beginning and 802.6 MB in the end (delta: 135.0 MB). Peak memory consumption was 286.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:27:23,072 INFO L168 Benchmark]: Witness Printer took 2.84 ms. Allocated memory is still 1.3 GB. Free memory is still 802.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:27:23,075 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 521.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -115.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9398.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 937.7 MB in the end (delta: 117.8 MB). Peak memory consumption was 117.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 596526.45 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 151.0 MB). Free memory was 937.7 MB in the beginning and 802.6 MB in the end (delta: 135.0 MB). Peak memory consumption was 286.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.84 ms. Allocated memory is still 1.3 GB. Free memory is still 802.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1642]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1043] static int init = 1; [L1044] static SSL_METHOD SSLv3_client_data ; [L1066] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1070] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1071] s->ctx = malloc(sizeof(SSL_CTX)) [L1072] s->session = malloc(sizeof(SSL_SESSION)) [L1073] s->state = 12292 [L1074] s->version = __VERIFIER_nondet_int() [L1081] BUF_MEM *buf ; [L1082] unsigned long tmp ; [L1083] unsigned long l ; [L1084] long num1 ; [L1085] void (*cb)() ; [L1086] int ret ; [L1087] int new_state ; [L1088] int state ; [L1089] int skip ; [L1090] int tmp___1 = __VERIFIER_nondet_int() ; [L1091] int tmp___2 = __VERIFIER_nondet_int() ; [L1092] int tmp___3 = __VERIFIER_nondet_int() ; [L1093] int tmp___4 = __VERIFIER_nondet_int() ; [L1094] int tmp___5 = __VERIFIER_nondet_int() ; [L1095] int tmp___6 = __VERIFIER_nondet_int() ; [L1096] int tmp___7 = __VERIFIER_nondet_int() ; [L1097] int tmp___8 = __VERIFIER_nondet_int() ; [L1098] long tmp___9 = __VERIFIER_nondet_long() ; [L1099] int blastFlag ; [L1102] blastFlag = 0 [L1103] s->hit=__VERIFIER_nondet_int () [L1104] s->state = 12292 [L1105] tmp = __VERIFIER_nondet_int() [L1106] cb = (void (*)())((void *)0) [L1107] ret = -1 [L1108] skip = 0 [L1109] EXPR s->info_callback [L1109] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1110] EXPR s->info_callback [L1110] cb = s->info_callback [L1118] EXPR s->in_handshake [L1118] s->in_handshake += 1 [L1119] COND FALSE !(tmp___1 & 12288) [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND TRUE s->state == 4368 [L1291] s->shutdown = 0 [L1292] ret = __VERIFIER_nondet_int() [L1293] COND TRUE blastFlag == 0 [L1294] blastFlag = 1 [L1302] COND FALSE !(ret <= 0) [L1307] s->state = 4384 [L1308] s->init_num = 0 [L1309] EXPR s->bbio [L1309] EXPR s->wbio [L1309] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1601] EXPR s->s3 [L1601] EXPR (s->s3)->tmp.reuse_message [L1601] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1630] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND TRUE s->state == 4384 [L1317] ret = __VERIFIER_nondet_int() [L1318] COND TRUE blastFlag == 1 [L1319] blastFlag = 2 [L1323] COND FALSE !(ret <= 0) [L1328] s->hit [L1328] COND TRUE s->hit [L1329] s->state = 4560 [L1333] s->init_num = 0 [L1601] EXPR s->s3 [L1601] EXPR (s->s3)->tmp.reuse_message [L1601] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1630] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND FALSE !(s->state == 4384) [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 4385) [L1159] EXPR s->state [L1159] COND TRUE s->state == 4400 [L1337] EXPR s->s3 [L1337] EXPR (s->s3)->tmp.new_cipher [L1337] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1337] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1340] ret = __VERIFIER_nondet_int() [L1341] COND TRUE blastFlag == 2 [L1342] blastFlag = 3 [L1346] COND FALSE !(ret <= 0) [L1352] s->state = 4416 [L1353] s->init_num = 0 [L1601] EXPR s->s3 [L1601] EXPR (s->s3)->tmp.reuse_message [L1601] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1630] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND FALSE !(s->state == 4384) [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 4385) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 4400) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4401) [L1165] EXPR s->state [L1165] COND TRUE s->state == 4416 [L1357] ret = __VERIFIER_nondet_int() [L1358] COND TRUE blastFlag == 3 [L1359] blastFlag = 4 [L1363] COND FALSE !(ret <= 0) [L1368] s->state = 4432 [L1369] s->init_num = 0 [L1370] COND FALSE !(! tmp___6) [L1601] EXPR s->s3 [L1601] EXPR (s->s3)->tmp.reuse_message [L1601] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1630] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND TRUE s->state == 4368 [L1291] s->shutdown = 0 [L1292] ret = __VERIFIER_nondet_int() [L1293] COND FALSE !(blastFlag == 0) [L1296] COND TRUE blastFlag == 4 [L1297] blastFlag = 5 [L1302] COND FALSE !(ret <= 0) [L1307] s->state = 4384 [L1308] s->init_num = 0 [L1309] EXPR s->bbio [L1309] EXPR s->wbio [L1309] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1601] EXPR s->s3 [L1601] EXPR (s->s3)->tmp.reuse_message [L1601] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1630] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND FALSE !(s->state == 4384) [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 4385) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 4400) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4401) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 4416) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4417) [L1171] EXPR s->state [L1171] COND TRUE s->state == 4432 [L1379] ret = __VERIFIER_nondet_int() [L1380] COND TRUE blastFlag == 5 [L1642] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Result: UNKNOWN, OverallTime: 596.4s, OverallIterations: 4, TraceHistogramMax: 6, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 942 SDtfs, 1074 SDslu, 1128 SDs, 0 SdLazy, 97 SolverSat, 33 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 340 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=718occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 98 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 41153 SizeOfPredicates, 1 NumberOfNonLiveVariables, 516 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 286/286 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: 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 Received shutdown request...