./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ssh/s3_clnt.blast.03.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_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ssh/s3_clnt.blast.03.i.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/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 a9e85c0038d1608b1041d2a9bd9534081fc54745 ...................................................................................................................................... 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_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ssh/s3_clnt.blast.03.i.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/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 a9e85c0038d1608b1041d2a9bd9534081fc54745 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:04:22,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:04:22,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:04:22,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:04:22,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:04:22,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:04:22,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:04:22,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:04:22,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:04:22,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:04:22,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:04:22,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:04:22,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:04:22,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:04:22,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:04:22,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:04:22,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:04:22,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:04:22,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:04:22,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:04:22,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:04:22,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:04:22,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:04:22,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:04:22,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:04:22,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:04:22,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:04:22,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:04:22,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:04:22,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:04:22,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:04:22,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:04:22,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:04:22,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:04:22,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:04:22,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:04:22,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:04:22,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:04:22,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:04:22,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:04:22,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:04:22,220 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:04:22,229 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:04:22,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:04:22,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:04:22,230 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:04:22,230 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:04:22,230 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:04:22,230 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:04:22,231 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:04:22,231 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:04:22,231 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:04:22,231 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:04:22,231 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:04:22,231 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:04:22,231 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:04:22,231 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:04:22,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:04:22,232 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:04:22,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:04:22,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:04:22,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:04:22,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:04:22,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:04:22,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:04:22,233 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:04:22,233 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:04:22,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:04:22,233 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:04:22,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:04:22,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:04:22,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:04:22,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:04:22,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:04:22,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:04:22,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:04:22,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:04:22,234 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:04:22,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:04:22,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:04:22,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:04:22,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:04:22,235 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_590f7750-96f7-4bbf-80c6-dc2b005a2b78/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 -> a9e85c0038d1608b1041d2a9bd9534081fc54745 [2019-12-07 11:04:22,331 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:04:22,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:04:22,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:04:22,342 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:04:22,342 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:04:22,343 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/../../sv-benchmarks/c/ssh/s3_clnt.blast.03.i.cil-2.c [2019-12-07 11:04:22,380 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/data/651dfc7c8/17c89dc5a9be4a1eb433d6909072d6d0/FLAGc766dafce [2019-12-07 11:04:22,865 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:04:22,865 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/sv-benchmarks/c/ssh/s3_clnt.blast.03.i.cil-2.c [2019-12-07 11:04:22,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/data/651dfc7c8/17c89dc5a9be4a1eb433d6909072d6d0/FLAGc766dafce [2019-12-07 11:04:22,886 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/data/651dfc7c8/17c89dc5a9be4a1eb433d6909072d6d0 [2019-12-07 11:04:22,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:04:22,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:04:22,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:04:22,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:04:22,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:04:22,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:04:22" (1/1) ... [2019-12-07 11:04:22,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3266040e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:22, skipping insertion in model container [2019-12-07 11:04:22,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:04:22" (1/1) ... [2019-12-07 11:04:22,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:04:22,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:04:23,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:04:23,207 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 11:04:23,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ad2ac2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:23, skipping insertion in model container [2019-12-07 11:04:23,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:04:23,207 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 11:04:23,209 INFO L168 Benchmark]: Toolchain (without parser) took 319.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:04:23,209 INFO L168 Benchmark]: CDTParser took 0.14 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 11:04:23,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:04:23,211 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 317.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1038]: 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 11:04:24,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:04:24,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:04:24,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:04:24,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:04:24,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:04:24,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:04:24,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:04:24,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:04:24,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:04:24,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:04:24,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:04:24,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:04:24,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:04:24,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:04:24,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:04:24,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:04:24,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:04:24,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:04:24,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:04:24,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:04:24,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:04:24,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:04:24,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:04:24,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:04:24,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:04:24,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:04:24,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:04:24,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:04:24,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:04:24,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:04:24,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:04:24,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:04:24,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:04:24,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:04:24,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:04:24,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:04:24,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:04:24,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:04:24,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:04:24,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:04:24,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 11:04:24,366 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:04:24,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:04:24,367 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:04:24,367 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:04:24,367 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:04:24,368 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:04:24,368 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:04:24,368 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:04:24,368 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:04:24,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:04:24,369 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:04:24,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:04:24,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:04:24,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:04:24,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:04:24,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:04:24,369 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:04:24,370 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:04:24,370 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:04:24,370 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:04:24,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:04:24,370 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:04:24,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:04:24,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:04:24,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:04:24,371 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:04:24,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:04:24,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:04:24,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:04:24,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:04:24,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:04:24,371 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 11:04:24,371 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:04:24,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:04:24,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:04:24,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:04:24,372 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_590f7750-96f7-4bbf-80c6-dc2b005a2b78/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 -> a9e85c0038d1608b1041d2a9bd9534081fc54745 [2019-12-07 11:04:24,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:04:24,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:04:24,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:04:24,550 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:04:24,550 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:04:24,551 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/../../sv-benchmarks/c/ssh/s3_clnt.blast.03.i.cil-2.c [2019-12-07 11:04:24,588 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/data/ceb78abdb/deb210093fc94032b9d0a8d689b1b83d/FLAG199600077 [2019-12-07 11:04:25,125 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:04:25,125 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/sv-benchmarks/c/ssh/s3_clnt.blast.03.i.cil-2.c [2019-12-07 11:04:25,137 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/data/ceb78abdb/deb210093fc94032b9d0a8d689b1b83d/FLAG199600077 [2019-12-07 11:04:25,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/bin/utaipan/data/ceb78abdb/deb210093fc94032b9d0a8d689b1b83d [2019-12-07 11:04:25,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:04:25,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:04:25,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:04:25,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:04:25,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:04:25,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:04:25" (1/1) ... [2019-12-07 11:04:25,582 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 11:04:25, skipping insertion in model container [2019-12-07 11:04:25,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:04:25" (1/1) ... [2019-12-07 11:04:25,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:04:25,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:04:25,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:04:25,896 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 11:04:25,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:04:25,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:04:25,964 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:04:26,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:04:26,031 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:04:26,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:26 WrapperNode [2019-12-07 11:04:26,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:04:26,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:04:26,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:04:26,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:04:26,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:26" (1/1) ... [2019-12-07 11:04:26,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:26" (1/1) ... [2019-12-07 11:04:26,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:04:26,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:04:26,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:04:26,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:04:26,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:26" (1/1) ... [2019-12-07 11:04:26,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:26" (1/1) ... [2019-12-07 11:04:26,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:26" (1/1) ... [2019-12-07 11:04:26,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:26" (1/1) ... [2019-12-07 11:04:26,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:26" (1/1) ... [2019-12-07 11:04:26,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:26" (1/1) ... [2019-12-07 11:04:26,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:26" (1/1) ... [2019-12-07 11:04:26,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:04:26,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:04:26,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:04:26,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:04:26,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/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 11:04:26,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 11:04:26,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:04:26,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 11:04:26,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 11:04:26,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 11:04:26,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:04:26,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:04:26,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 11:04:26,305 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 11:04:34,137 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2019-12-07 11:04:34,137 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2019-12-07 11:04:34,139 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:04:34,139 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 11:04:34,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:04:34 BoogieIcfgContainer [2019-12-07 11:04:34,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:04:34,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:04:34,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:04:34,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:04:34,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:04:25" (1/3) ... [2019-12-07 11:04:34,144 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 11:04:34, skipping insertion in model container [2019-12-07 11:04:34,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:26" (2/3) ... [2019-12-07 11:04:34,144 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 11:04:34, skipping insertion in model container [2019-12-07 11:04:34,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:04:34" (3/3) ... [2019-12-07 11:04:34,145 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-2.c [2019-12-07 11:04:34,152 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:04:34,156 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:04:34,164 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:04:34,180 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:04:34,181 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:04:34,181 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:04:34,181 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:04:34,181 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:04:34,181 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:04:34,181 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:04:34,181 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:04:34,194 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-12-07 11:04:34,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 11:04:34,199 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:34,199 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 11:04:34,200 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:04:34,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:34,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2019-12-07 11:04:34,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:04:34,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587908562] [2019-12-07 11:04:34,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/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 11:04:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:34,333 INFO L264 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:04:34,339 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:04:34,366 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 11:04:34,366 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:04:34,380 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 11:04:34,381 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587908562] [2019-12-07 11:04:34,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:04:34,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:04:34,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358488216] [2019-12-07 11:04:34,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:04:34,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:04:34,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:04:34,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:04:34,397 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 4 states. [2019-12-07 11:04:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:34,500 INFO L93 Difference]: Finished difference Result 488 states and 825 transitions. [2019-12-07 11:04:34,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:04:34,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 11:04:34,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:34,516 INFO L225 Difference]: With dead ends: 488 [2019-12-07 11:04:34,516 INFO L226 Difference]: Without dead ends: 315 [2019-12-07 11:04:34,520 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 11:04:34,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2019-12-07 11:04:34,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2019-12-07 11:04:34,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-12-07 11:04:34,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 472 transitions. [2019-12-07 11:04:34,579 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 472 transitions. Word has length 24 [2019-12-07 11:04:34,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:34,580 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 472 transitions. [2019-12-07 11:04:34,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:04:34,580 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 472 transitions. [2019-12-07 11:04:34,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-07 11:04:34,584 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:34,584 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 11:04:34,785 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:04:34,785 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:04:34,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:34,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1013386387, now seen corresponding path program 1 times [2019-12-07 11:04:34,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:04:34,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23370602] [2019-12-07 11:04:34,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/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 11:04:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:34,926 INFO L264 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:04:34,929 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:04:34,940 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:34,940 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:04:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:34,948 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23370602] [2019-12-07 11:04:34,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:04:34,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 11:04:34,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818475189] [2019-12-07 11:04:34,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:04:34,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:04:34,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:04:34,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:04:34,951 INFO L87 Difference]: Start difference. First operand 315 states and 472 transitions. Second operand 3 states. [2019-12-07 11:04:37,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:37,001 INFO L93 Difference]: Finished difference Result 621 states and 935 transitions. [2019-12-07 11:04:37,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:04:37,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-12-07 11:04:37,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:37,004 INFO L225 Difference]: With dead ends: 621 [2019-12-07 11:04:37,004 INFO L226 Difference]: Without dead ends: 414 [2019-12-07 11:04:37,006 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:04:37,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2019-12-07 11:04:37,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2019-12-07 11:04:37,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-12-07 11:04:37,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 618 transitions. [2019-12-07 11:04:37,031 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 618 transitions. Word has length 58 [2019-12-07 11:04:37,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:37,032 INFO L462 AbstractCegarLoop]: Abstraction has 414 states and 618 transitions. [2019-12-07 11:04:37,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:04:37,032 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 618 transitions. [2019-12-07 11:04:37,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-12-07 11:04:37,036 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:37,036 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2019-12-07 11:04:37,237 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:04:37,237 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:04:37,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:37,238 INFO L82 PathProgramCache]: Analyzing trace with hash 734843988, now seen corresponding path program 1 times [2019-12-07 11:04:37,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:04:37,241 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987053689] [2019-12-07 11:04:37,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/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 11:04:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:37,457 INFO L264 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:04:37,460 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:04:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-07 11:04:37,470 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:04:37,479 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-07 11:04:37,480 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987053689] [2019-12-07 11:04:37,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:04:37,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:04:37,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499599925] [2019-12-07 11:04:37,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:04:37,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:04:37,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:04:37,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:04:37,481 INFO L87 Difference]: Start difference. First operand 414 states and 618 transitions. Second operand 4 states. [2019-12-07 11:04:39,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:39,555 INFO L93 Difference]: Finished difference Result 1020 states and 1528 transitions. [2019-12-07 11:04:39,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:04:39,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2019-12-07 11:04:39,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:39,558 INFO L225 Difference]: With dead ends: 1020 [2019-12-07 11:04:39,558 INFO L226 Difference]: Without dead ends: 714 [2019-12-07 11:04:39,559 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 148 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 11:04:39,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2019-12-07 11:04:39,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 616. [2019-12-07 11:04:39,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-12-07 11:04:39,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 918 transitions. [2019-12-07 11:04:39,573 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 918 transitions. Word has length 76 [2019-12-07 11:04:39,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:39,573 INFO L462 AbstractCegarLoop]: Abstraction has 616 states and 918 transitions. [2019-12-07 11:04:39,573 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:04:39,573 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 918 transitions. [2019-12-07 11:04:39,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-12-07 11:04:39,576 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:39,576 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:04:39,777 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:04:39,778 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:04:39,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:39,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1308457232, now seen corresponding path program 1 times [2019-12-07 11:04:39,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:04:39,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586836912] [2019-12-07 11:04:39,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/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 11:04:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:40,401 INFO L264 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 11:04:40,406 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:04:40,435 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:40,436 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:40,436 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:40,437 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:40,438 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:04:40,439 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 11:14:21,011 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-12-07 11:14:21,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586836912] [2019-12-07 11:14:21,013 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 11:14:21,013 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [603617158] [2019-12-07 11:14:21,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/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 11:14:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:14:21,903 INFO L264 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 11:14:21,904 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 11:14:21,904 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469022005] [2019-12-07 11:14:21,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_590f7750-96f7-4bbf-80c6-dc2b005a2b78/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 11:14:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:14:22,068 INFO L264 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:14:22,071 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:14:22,075 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by |v_#memory_int_172| [2019-12-07 11:14:22,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:14:22,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2019-12-07 11:14:22,076 ERROR L206 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2019-12-07 11:14:22,076 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:14:22,680 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 11:14:22,713 WARN L229 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-12-07 11:14:22,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:14:22 BoogieIcfgContainer [2019-12-07 11:14:22,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:14:22,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:14:22,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:14:22,713 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:14:22,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:04:34" (3/4) ... [2019-12-07 11:14:22,716 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 11:14:22,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:14:22,718 INFO L168 Benchmark]: Toolchain (without parser) took 597141.71 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 288.9 MB). Free memory was 947.0 MB in the beginning and 1.3 GB in the end (delta: -310.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:14:22,718 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 11:14:22,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -146.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:14:22,719 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-12-07 11:14:22,719 INFO L168 Benchmark]: Boogie Preprocessor took 53.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-12-07 11:14:22,719 INFO L168 Benchmark]: RCFGBuilder took 8001.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.7 MB in the end (delta: 114.7 MB). Peak memory consumption was 114.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:14:22,720 INFO L168 Benchmark]: TraceAbstraction took 588572.35 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 149.4 MB). Free memory was 959.7 MB in the beginning and 1.3 GB in the end (delta: -298.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:14:22,720 INFO L168 Benchmark]: Witness Printer took 2.98 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:14:22,722 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 455.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -146.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8001.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.7 MB in the end (delta: 114.7 MB). Peak memory consumption was 114.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 588572.35 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 149.4 MB). Free memory was 959.7 MB in the beginning and 1.3 GB in the end (delta: -298.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 2.98 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1641]: 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: [L1042] static int init = 1; [L1043] static SSL_METHOD SSLv3_client_data ; [L1065] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1069] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1070] s->ctx = malloc(sizeof(SSL_CTX)) [L1071] s->session = malloc(sizeof(SSL_SESSION)) [L1072] s->state = 12292 [L1073] s->version = __VERIFIER_nondet_int() [L1080] BUF_MEM *buf ; [L1081] unsigned long tmp ; [L1082] unsigned long l ; [L1083] long num1 ; [L1084] void (*cb)() ; [L1085] int ret ; [L1086] int new_state ; [L1087] int state ; [L1088] int skip ; [L1089] int tmp___1 = __VERIFIER_nondet_int() ; [L1090] int tmp___2 = __VERIFIER_nondet_int() ; [L1091] int tmp___3 = __VERIFIER_nondet_int() ; [L1092] int tmp___4 = __VERIFIER_nondet_int() ; [L1093] int tmp___5 = __VERIFIER_nondet_int() ; [L1094] int tmp___6 = __VERIFIER_nondet_int() ; [L1095] int tmp___7 = __VERIFIER_nondet_int() ; [L1096] int tmp___8 = __VERIFIER_nondet_int() ; [L1097] long tmp___9 = __VERIFIER_nondet_long() ; [L1098] int blastFlag ; [L1101] blastFlag = 0 [L1102] s->hit=__VERIFIER_nondet_int () [L1103] s->state = 12292 [L1104] tmp = __VERIFIER_nondet_int() [L1105] cb = (void (*)())((void *)0) [L1106] ret = -1 [L1107] skip = 0 [L1108] EXPR s->info_callback [L1108] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1109] EXPR s->info_callback [L1109] cb = s->info_callback [L1117] EXPR s->in_handshake [L1117] s->in_handshake += 1 [L1118] COND FALSE !(tmp___1 & 12288) [L1128] COND TRUE 1 [L1130] EXPR s->state [L1130] state = s->state [L1131] EXPR s->state [L1131] COND FALSE !(s->state == 12292) [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 16384) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 4096) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 20480) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 4099) [L1146] EXPR s->state [L1146] COND TRUE s->state == 4368 [L1290] s->shutdown = 0 [L1291] ret = __VERIFIER_nondet_int() [L1292] COND TRUE blastFlag == 0 [L1293] blastFlag = 1 [L1297] COND FALSE !(ret <= 0) [L1302] s->state = 4384 [L1303] s->init_num = 0 [L1304] EXPR s->bbio [L1304] EXPR s->wbio [L1304] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1600] EXPR s->s3 [L1600] EXPR (s->s3)->tmp.reuse_message [L1600] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1629] skip = 0 [L1128] COND TRUE 1 [L1130] EXPR s->state [L1130] state = s->state [L1131] EXPR s->state [L1131] COND FALSE !(s->state == 12292) [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 16384) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 4096) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 20480) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 4099) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4368) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4369) [L1152] EXPR s->state [L1152] COND TRUE s->state == 4384 [L1312] ret = __VERIFIER_nondet_int() [L1313] COND TRUE blastFlag == 1 [L1314] blastFlag = 2 [L1322] COND FALSE !(ret <= 0) [L1327] s->hit [L1327] COND TRUE s->hit [L1328] s->state = 4560 [L1332] s->init_num = 0 [L1600] EXPR s->s3 [L1600] EXPR (s->s3)->tmp.reuse_message [L1600] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1629] skip = 0 [L1128] COND TRUE 1 [L1130] EXPR s->state [L1130] state = s->state [L1131] EXPR s->state [L1131] COND FALSE !(s->state == 12292) [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 16384) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 4096) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 20480) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 4099) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4368) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4369) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4384) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4385) [L1158] EXPR s->state [L1158] COND TRUE s->state == 4400 [L1336] EXPR s->s3 [L1336] EXPR (s->s3)->tmp.new_cipher [L1336] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1336] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1339] ret = __VERIFIER_nondet_int() [L1340] COND TRUE blastFlag == 2 [L1341] blastFlag = 3 [L1345] COND FALSE !(ret <= 0) [L1351] s->state = 4416 [L1352] s->init_num = 0 [L1600] EXPR s->s3 [L1600] EXPR (s->s3)->tmp.reuse_message [L1600] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1629] skip = 0 [L1128] COND TRUE 1 [L1130] EXPR s->state [L1130] state = s->state [L1131] EXPR s->state [L1131] COND FALSE !(s->state == 12292) [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 16384) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 4096) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 20480) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 4099) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4368) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4369) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4384) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4385) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4400) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4401) [L1164] EXPR s->state [L1164] COND TRUE s->state == 4416 [L1356] ret = __VERIFIER_nondet_int() [L1357] COND TRUE blastFlag == 3 [L1358] blastFlag = 4 [L1362] COND FALSE !(ret <= 0) [L1367] s->state = 4432 [L1368] s->init_num = 0 [L1369] COND FALSE !(! tmp___6) [L1600] EXPR s->s3 [L1600] EXPR (s->s3)->tmp.reuse_message [L1600] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1629] skip = 0 [L1128] COND TRUE 1 [L1130] EXPR s->state [L1130] state = s->state [L1131] EXPR s->state [L1131] COND FALSE !(s->state == 12292) [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 16384) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 4096) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 20480) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 4099) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4368) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4369) [L1152] EXPR s->state [L1152] COND TRUE s->state == 4384 [L1312] ret = __VERIFIER_nondet_int() [L1313] COND FALSE !(blastFlag == 1) [L1316] COND TRUE blastFlag == 4 [L1317] blastFlag = 5 [L1322] COND FALSE !(ret <= 0) [L1327] s->hit [L1327] COND TRUE s->hit [L1328] s->state = 4560 [L1332] s->init_num = 0 [L1600] EXPR s->s3 [L1600] EXPR (s->s3)->tmp.reuse_message [L1600] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1629] skip = 0 [L1128] COND TRUE 1 [L1130] EXPR s->state [L1130] state = s->state [L1131] EXPR s->state [L1131] COND FALSE !(s->state == 12292) [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 16384) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 4096) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 20480) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 4099) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4368) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4369) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4384) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4385) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4400) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4401) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4416) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4417) [L1170] EXPR s->state [L1170] COND TRUE s->state == 4432 [L1378] ret = __VERIFIER_nondet_int() [L1379] COND TRUE blastFlag == 5 [L1641] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Result: UNKNOWN, OverallTime: 588.5s, OverallIterations: 4, TraceHistogramMax: 6, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 954 SDtfs, 933 SDslu, 981 SDs, 0 SdLazy, 83 SolverSat, 28 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=616occurred 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 32222 SizeOfPredicates, 1 NumberOfNonLiveVariables, 473 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 194/194 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...