./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ssh/s3_clnt.blast.01.i.cil-1.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_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ssh/s3_clnt.blast.01.i.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/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 86985028c31ac38cb951d6f73c1e89691e53b5e6 ...................................................................................................................................... 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_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ssh/s3_clnt.blast.01.i.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/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 86985028c31ac38cb951d6f73c1e89691e53b5e6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:50:06,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:50:06,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:50:06,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:50:06,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:50:06,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:50:06,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:50:06,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:50:06,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:50:06,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:50:06,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:50:06,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:50:06,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:50:06,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:50:06,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:50:06,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:50:06,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:50:06,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:50:06,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:50:06,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:50:06,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:50:06,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:50:06,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:50:06,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:50:06,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:50:06,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:50:06,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:50:06,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:50:06,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:50:06,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:50:06,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:50:06,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:50:06,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:50:06,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:50:06,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:50:06,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:50:06,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:50:06,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:50:06,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:50:06,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:50:06,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:50:06,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:50:06,112 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:50:06,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:50:06,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:50:06,113 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:50:06,113 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:50:06,113 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:50:06,113 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:50:06,114 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:50:06,114 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:50:06,114 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:50:06,114 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:50:06,114 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:50:06,114 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:50:06,114 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:50:06,114 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:50:06,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:50:06,115 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:50:06,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:50:06,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:50:06,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:50:06,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:50:06,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:50:06,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:50:06,116 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:50:06,116 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:50:06,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:50:06,116 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:50:06,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:50:06,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:50:06,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:50:06,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:50:06,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:50:06,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:50:06,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:50:06,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:50:06,118 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:50:06,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:50:06,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:50:06,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:50:06,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:50:06,118 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_a4b21edc-a278-4f69-8326-bc2743cca340/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 -> 86985028c31ac38cb951d6f73c1e89691e53b5e6 [2019-12-07 11:50:06,223 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:50:06,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:50:06,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:50:06,237 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:50:06,237 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:50:06,238 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/../../sv-benchmarks/c/ssh/s3_clnt.blast.01.i.cil-1.c [2019-12-07 11:50:06,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/data/8fd1a232e/7744fd603d804228b37175d1aaa32256/FLAG7998bb553 [2019-12-07 11:50:06,690 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:50:06,691 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/sv-benchmarks/c/ssh/s3_clnt.blast.01.i.cil-1.c [2019-12-07 11:50:06,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/data/8fd1a232e/7744fd603d804228b37175d1aaa32256/FLAG7998bb553 [2019-12-07 11:50:06,711 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/data/8fd1a232e/7744fd603d804228b37175d1aaa32256 [2019-12-07 11:50:06,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:50:06,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:50:06,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:50:06,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:50:06,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:50:06,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:50:06" (1/1) ... [2019-12-07 11:50:06,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2b21b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:06, skipping insertion in model container [2019-12-07 11:50:06,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:50:06" (1/1) ... [2019-12-07 11:50:06,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:50:06,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:50:07,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:50:07,041 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 11:50:07,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@591bfce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:07, skipping insertion in model container [2019-12-07 11:50:07,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:50:07,042 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 11:50:07,044 INFO L168 Benchmark]: Toolchain (without parser) took 329.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -140.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:07,045 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:50:07,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:07,047 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 327.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 24.0 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 11:50:08,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:50:08,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:50:08,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:50:08,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:50:08,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:50:08,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:50:08,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:50:08,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:50:08,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:50:08,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:50:08,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:50:08,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:50:08,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:50:08,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:50:08,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:50:08,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:50:08,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:50:08,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:50:08,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:50:08,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:50:08,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:50:08,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:50:08,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:50:08,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:50:08,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:50:08,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:50:08,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:50:08,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:50:08,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:50:08,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:50:08,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:50:08,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:50:08,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:50:08,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:50:08,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:50:08,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:50:08,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:50:08,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:50:08,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:50:08,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:50:08,225 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 11:50:08,235 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:50:08,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:50:08,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:50:08,236 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:50:08,236 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:50:08,236 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:50:08,236 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:50:08,236 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:50:08,236 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:50:08,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:50:08,237 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:50:08,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:50:08,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:50:08,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:50:08,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:50:08,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:50:08,238 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:50:08,238 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:50:08,238 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:50:08,238 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:50:08,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:50:08,238 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:50:08,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:50:08,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:50:08,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:50:08,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:50:08,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:50:08,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:50:08,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:50:08,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:50:08,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:50:08,240 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 11:50:08,240 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:50:08,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:50:08,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:50:08,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:50:08,240 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_a4b21edc-a278-4f69-8326-bc2743cca340/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 -> 86985028c31ac38cb951d6f73c1e89691e53b5e6 [2019-12-07 11:50:08,414 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:50:08,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:50:08,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:50:08,424 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:50:08,425 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:50:08,425 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/../../sv-benchmarks/c/ssh/s3_clnt.blast.01.i.cil-1.c [2019-12-07 11:50:08,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/data/aa2e69f9d/867d492ccbca491f8754d95031017217/FLAG7f8f8073f [2019-12-07 11:50:08,971 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:50:08,971 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/sv-benchmarks/c/ssh/s3_clnt.blast.01.i.cil-1.c [2019-12-07 11:50:08,983 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/data/aa2e69f9d/867d492ccbca491f8754d95031017217/FLAG7f8f8073f [2019-12-07 11:50:09,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/bin/utaipan/data/aa2e69f9d/867d492ccbca491f8754d95031017217 [2019-12-07 11:50:09,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:50:09,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:50:09,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:50:09,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:50:09,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:50:09,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:50:09" (1/1) ... [2019-12-07 11:50:09,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf9ed9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09, skipping insertion in model container [2019-12-07 11:50:09,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:50:09" (1/1) ... [2019-12-07 11:50:09,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:50:09,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:50:09,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:50:09,770 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 11:50:09,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:50:09,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:50:09,837 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:50:09,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:50:09,903 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:50:09,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09 WrapperNode [2019-12-07 11:50:09,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:50:09,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:50:09,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:50:09,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:50:09,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09" (1/1) ... [2019-12-07 11:50:09,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09" (1/1) ... [2019-12-07 11:50:09,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:50:09,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:50:09,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:50:09,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:50:09,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09" (1/1) ... [2019-12-07 11:50:09,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09" (1/1) ... [2019-12-07 11:50:09,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09" (1/1) ... [2019-12-07 11:50:09,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09" (1/1) ... [2019-12-07 11:50:09,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09" (1/1) ... [2019-12-07 11:50:10,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09" (1/1) ... [2019-12-07 11:50:10,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09" (1/1) ... [2019-12-07 11:50:10,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:50:10,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:50:10,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:50:10,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:50:10,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/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 11:50:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 11:50:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:50:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 11:50:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 11:50:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 11:50:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:50:10,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:50:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 11:50:10,174 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 11:50:20,469 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2019-12-07 11:50:20,469 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2019-12-07 11:50:20,471 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:50:20,471 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 11:50:20,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:50:20 BoogieIcfgContainer [2019-12-07 11:50:20,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:50:20,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:50:20,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:50:20,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:50:20,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:50:09" (1/3) ... [2019-12-07 11:50:20,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e32853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:50:20, skipping insertion in model container [2019-12-07 11:50:20,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:09" (2/3) ... [2019-12-07 11:50:20,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e32853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:50:20, skipping insertion in model container [2019-12-07 11:50:20,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:50:20" (3/3) ... [2019-12-07 11:50:20,478 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-1.c [2019-12-07 11:50:20,485 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:50:20,490 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:50:20,498 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:50:20,514 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:50:20,514 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:50:20,514 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:50:20,515 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:50:20,515 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:50:20,515 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:50:20,515 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:50:20,515 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:50:20,528 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2019-12-07 11:50:20,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 11:50:20,533 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:50:20,533 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 11:50:20,534 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:50:20,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:50:20,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1457703966, now seen corresponding path program 1 times [2019-12-07 11:50:20,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:50:20,547 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428552310] [2019-12-07 11:50:20,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/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 11:50:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:50:20,688 INFO L264 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:50:20,693 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:50:20,718 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 11:50:20,719 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:50:20,731 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 11:50:20,732 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428552310] [2019-12-07 11:50:20,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:50:20,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:50:20,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214288428] [2019-12-07 11:50:20,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:50:20,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:50:20,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:50:20,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:50:20,753 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 4 states. [2019-12-07 11:50:20,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:50:20,855 INFO L93 Difference]: Finished difference Result 496 states and 829 transitions. [2019-12-07 11:50:20,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:50:20,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 11:50:20,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:50:20,871 INFO L225 Difference]: With dead ends: 496 [2019-12-07 11:50:20,871 INFO L226 Difference]: Without dead ends: 321 [2019-12-07 11:50:20,875 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 11:50:20,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-12-07 11:50:20,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2019-12-07 11:50:20,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2019-12-07 11:50:20,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 478 transitions. [2019-12-07 11:50:20,922 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 478 transitions. Word has length 24 [2019-12-07 11:50:20,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:50:20,923 INFO L462 AbstractCegarLoop]: Abstraction has 321 states and 478 transitions. [2019-12-07 11:50:20,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:50:20,923 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 478 transitions. [2019-12-07 11:50:20,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-12-07 11:50:20,926 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:50:20,926 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:50:21,127 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:50:21,128 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:50:21,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:50:21,129 INFO L82 PathProgramCache]: Analyzing trace with hash 908084980, now seen corresponding path program 1 times [2019-12-07 11:50:21,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:50:21,132 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412390467] [2019-12-07 11:50:21,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/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 11:50:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:50:21,407 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:50:21,410 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:50:21,421 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:50:21,421 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:50:21,434 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:50:21,434 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412390467] [2019-12-07 11:50:21,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:50:21,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:50:21,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694478541] [2019-12-07 11:50:21,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:50:21,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:50:21,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:50:21,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:50:21,437 INFO L87 Difference]: Start difference. First operand 321 states and 478 transitions. Second operand 4 states. [2019-12-07 11:50:23,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:50:23,504 INFO L93 Difference]: Finished difference Result 736 states and 1103 transitions. [2019-12-07 11:50:23,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:50:23,504 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2019-12-07 11:50:23,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:50:23,508 INFO L225 Difference]: With dead ends: 736 [2019-12-07 11:50:23,508 INFO L226 Difference]: Without dead ends: 525 [2019-12-07 11:50:23,509 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:50:23,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2019-12-07 11:50:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2019-12-07 11:50:23,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2019-12-07 11:50:23,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 779 transitions. [2019-12-07 11:50:23,533 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 779 transitions. Word has length 65 [2019-12-07 11:50:23,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:50:23,533 INFO L462 AbstractCegarLoop]: Abstraction has 525 states and 779 transitions. [2019-12-07 11:50:23,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:50:23,534 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 779 transitions. [2019-12-07 11:50:23,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-12-07 11:50:23,538 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:50:23,539 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:50:23,739 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:50:23,740 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:50:23,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:50:23,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1159650437, now seen corresponding path program 1 times [2019-12-07 11:50:23,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:50:23,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273394505] [2019-12-07 11:50:23,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/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 11:50:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:50:23,977 INFO L264 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:50:23,983 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:50:23,994 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-12-07 11:50:23,994 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:50:24,008 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-12-07 11:50:24,008 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273394505] [2019-12-07 11:50:24,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:50:24,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:50:24,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750121754] [2019-12-07 11:50:24,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:50:24,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:50:24,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:50:24,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:50:24,010 INFO L87 Difference]: Start difference. First operand 525 states and 779 transitions. Second operand 4 states. [2019-12-07 11:50:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:50:26,073 INFO L93 Difference]: Finished difference Result 1147 states and 1708 transitions. [2019-12-07 11:50:26,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:50:26,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2019-12-07 11:50:26,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:50:26,077 INFO L225 Difference]: With dead ends: 1147 [2019-12-07 11:50:26,077 INFO L226 Difference]: Without dead ends: 732 [2019-12-07 11:50:26,078 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 204 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 11:50:26,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2019-12-07 11:50:26,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2019-12-07 11:50:26,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2019-12-07 11:50:26,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1083 transitions. [2019-12-07 11:50:26,096 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1083 transitions. Word has length 104 [2019-12-07 11:50:26,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:50:26,096 INFO L462 AbstractCegarLoop]: Abstraction has 732 states and 1083 transitions. [2019-12-07 11:50:26,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:50:26,097 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1083 transitions. [2019-12-07 11:50:26,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-12-07 11:50:26,098 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:50:26,098 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:50:26,299 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:50:26,299 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:50:26,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:50:26,300 INFO L82 PathProgramCache]: Analyzing trace with hash 876212838, now seen corresponding path program 1 times [2019-12-07 11:50:26,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:50:26,300 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599428406] [2019-12-07 11:50:26,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/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 11:50:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:50:26,663 INFO L264 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 11:50:26,669 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:50:26,699 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:50:26,700 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:50:26,700 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:50:26,701 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:50:26,702 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 11:50:26,703 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 12:00:20,274 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-12-07 12:00:20,275 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599428406] [2019-12-07 12:00:20,276 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 12:00:20,276 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1884904331] [2019-12-07 12:00:20,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/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 12:00:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:00:21,245 INFO L264 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 12:00:21,246 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 12:00:21,246 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710718072] [2019-12-07 12:00:21,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a4b21edc-a278-4f69-8326-bc2743cca340/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 12:00:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:00:21,402 INFO L264 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:00:21,406 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:00:21,410 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by |v_#memory_int_173| [2019-12-07 12:00:21,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:00:21,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2019-12-07 12:00:21,410 ERROR L206 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2019-12-07 12:00:21,410 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:00:22,016 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 12:00:22,075 WARN L229 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-12-07 12:00:22,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:00:22 BoogieIcfgContainer [2019-12-07 12:00:22,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:00:22,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:00:22,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:00:22,076 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:00:22,076 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:50:20" (3/4) ... [2019-12-07 12:00:22,078 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:00:22,078 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:00:22,080 INFO L168 Benchmark]: Toolchain (without parser) took 612629.53 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 287.8 MB). Free memory was 947.0 MB in the beginning and 1.3 GB in the end (delta: -323.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:00:22,080 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 12:00:22,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 452.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -125.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:00:22,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:00:22,081 INFO L168 Benchmark]: Boogie Preprocessor took 51.42 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:00:22,081 INFO L168 Benchmark]: RCFGBuilder took 10462.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.2 MB in the end (delta: 118.3 MB). Peak memory consumption was 118.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:00:22,082 INFO L168 Benchmark]: TraceAbstraction took 601602.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 157.8 MB). Free memory was 947.2 MB in the beginning and 1.3 GB in the end (delta: -323.2 MB). Peak memory consumption was 286.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:00:22,082 INFO L168 Benchmark]: Witness Printer took 2.70 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 12:00:22,084 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 452.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -125.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.42 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10462.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.2 MB in the end (delta: 118.3 MB). Peak memory consumption was 118.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 601602.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 157.8 MB). Free memory was 947.2 MB in the beginning and 1.3 GB in the end (delta: -323.2 MB). Peak memory consumption was 286.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.70 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: 1644]: 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 = (BUF_MEM *)__VERIFIER_nondet_ulong(); [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 ; [L1092] int tmp___4 ; [L1093] int tmp___5 ; [L1094] int tmp___6 ; [L1095] int tmp___7 ; [L1096] int tmp___8 ; [L1097] long tmp___9 ; [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 [L1287] s->shutdown = 0 [L1288] ret = __VERIFIER_nondet_int() [L1289] COND TRUE blastFlag == 0 [L1290] blastFlag = 1 [L1294] COND FALSE !(ret <= 0) [L1299] s->state = 4384 [L1300] s->init_num = 0 [L1301] EXPR s->bbio [L1301] EXPR s->wbio [L1301] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] 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 [L1309] ret = __VERIFIER_nondet_int() [L1310] COND TRUE blastFlag == 1 [L1311] blastFlag = 2 [L1315] COND FALSE !(ret <= 0) [L1320] s->hit [L1320] COND TRUE s->hit [L1321] s->state = 4560 [L1325] s->init_num = 0 [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] 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 [L1329] EXPR s->s3 [L1329] EXPR (s->s3)->tmp.new_cipher [L1329] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1329] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1332] ret = __VERIFIER_nondet_int() [L1333] COND TRUE blastFlag == 2 [L1334] blastFlag = 3 [L1338] COND FALSE !(ret <= 0) [L1344] s->state = 4416 [L1345] s->init_num = 0 [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] 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 [L1349] ret = __VERIFIER_nondet_int() [L1350] COND TRUE blastFlag == 3 [L1351] blastFlag = 4 [L1355] COND FALSE !(ret <= 0) [L1360] s->state = 4432 [L1361] s->init_num = 0 [L1362] tmp___6 = __VERIFIER_nondet_int() [L1363] COND FALSE !(! tmp___6) [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] 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 FALSE !(s->state == 4432) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4433) [L1177] EXPR s->state [L1177] COND TRUE s->state == 4448 [L1388] ret = __VERIFIER_nondet_int() [L1389] COND TRUE blastFlag == 4 [L1390] blastFlag = 5 [L1394] COND FALSE !(ret <= 0) [L1399] EXPR s->s3 [L1399] (s->s3)->tmp.cert_req [L1399] COND TRUE (s->s3)->tmp.cert_req [L1400] s->state = 4464 [L1404] s->init_num = 0 [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] 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 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 5 [L1644] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 131 locations, 1 error locations. Result: UNKNOWN, OverallTime: 601.5s, OverallIterations: 4, TraceHistogramMax: 6, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 810 SDtfs, 1079 SDslu, 987 SDs, 0 SdLazy, 92 SolverSat, 36 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 380 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=732occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 380 ConstructedInterpolants, 0 QuantifiedInterpolants, 52213 SizeOfPredicates, 1 NumberOfNonLiveVariables, 552 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 318/318 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...