./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ssh/s3_clnt.blast.04.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_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ssh/s3_clnt.blast.04.i.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/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 e017d7bcecd9326dc3a012dec9b0fc34b9541a8f ...................................................................................................................................... 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_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ssh/s3_clnt.blast.04.i.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/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 e017d7bcecd9326dc3a012dec9b0fc34b9541a8f ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:31:18,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:31:18,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:31:18,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:31:18,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:31:18,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:31:18,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:31:18,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:31:18,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:31:18,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:31:18,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:31:18,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:31:18,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:31:18,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:31:18,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:31:18,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:31:18,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:31:18,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:31:18,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:31:18,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:31:18,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:31:18,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:31:18,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:31:18,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:31:18,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:31:18,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:31:18,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:31:18,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:31:18,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:31:18,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:31:18,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:31:18,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:31:18,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:31:18,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:31:18,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:31:18,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:31:18,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:31:18,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:31:18,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:31:18,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:31:18,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:31:18,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:31:18,611 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:31:18,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:31:18,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:31:18,612 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:31:18,612 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:31:18,612 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:31:18,612 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:31:18,612 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:31:18,612 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:31:18,612 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:31:18,613 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:31:18,613 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:31:18,613 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:31:18,613 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:31:18,613 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:31:18,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:31:18,614 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:31:18,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:31:18,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:31:18,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:31:18,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:31:18,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:31:18,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:31:18,614 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:31:18,614 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:31:18,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:31:18,615 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:31:18,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:31:18,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:31:18,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:31:18,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:31:18,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:31:18,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:31:18,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:31:18,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:31:18,616 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:31:18,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:31:18,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:31:18,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:31:18,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:31:18,616 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_f72c6932-19d2-4409-a4c4-68f974b1772c/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 -> e017d7bcecd9326dc3a012dec9b0fc34b9541a8f [2019-12-07 12:31:18,718 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:31:18,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:31:18,729 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:31:18,730 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:31:18,730 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:31:18,731 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/../../sv-benchmarks/c/ssh/s3_clnt.blast.04.i.cil-2.c [2019-12-07 12:31:18,769 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/data/2fbf2413d/edd50f1f16524feea0483fe329448f4f/FLAG9b22d112b [2019-12-07 12:31:19,146 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:31:19,146 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/sv-benchmarks/c/ssh/s3_clnt.blast.04.i.cil-2.c [2019-12-07 12:31:19,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/data/2fbf2413d/edd50f1f16524feea0483fe329448f4f/FLAG9b22d112b [2019-12-07 12:31:19,167 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/data/2fbf2413d/edd50f1f16524feea0483fe329448f4f [2019-12-07 12:31:19,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:31:19,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:31:19,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:31:19,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:31:19,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:31:19,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:31:19" (1/1) ... [2019-12-07 12:31:19,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479ce930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:19, skipping insertion in model container [2019-12-07 12:31:19,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:31:19" (1/1) ... [2019-12-07 12:31:19,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:31:19,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:31:19,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:31:19,481 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 12:31:19,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4e75dc97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:19, skipping insertion in model container [2019-12-07 12:31:19,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:31:19,481 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 12:31:19,483 INFO L168 Benchmark]: Toolchain (without parser) took 312.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:31:19,483 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:31:19,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:31:19,485 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -149.3 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 12:31:20,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:31:20,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:31:20,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:31:20,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:31:20,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:31:20,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:31:20,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:31:20,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:31:20,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:31:20,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:31:20,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:31:20,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:31:20,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:31:20,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:31:20,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:31:20,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:31:20,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:31:20,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:31:20,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:31:20,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:31:20,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:31:20,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:31:20,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:31:20,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:31:20,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:31:20,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:31:20,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:31:20,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:31:20,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:31:20,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:31:20,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:31:20,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:31:20,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:31:20,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:31:20,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:31:20,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:31:20,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:31:20,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:31:20,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:31:20,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:31:20,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 12:31:20,661 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:31:20,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:31:20,662 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:31:20,662 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:31:20,663 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:31:20,663 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:31:20,663 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:31:20,663 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:31:20,663 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:31:20,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:31:20,664 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:31:20,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:31:20,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:31:20,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:31:20,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:31:20,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:31:20,665 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:31:20,665 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:31:20,665 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:31:20,665 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:31:20,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:31:20,665 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:31:20,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:31:20,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:31:20,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:31:20,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:31:20,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:31:20,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:31:20,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:31:20,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:31:20,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:31:20,667 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 12:31:20,667 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:31:20,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:31:20,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:31:20,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:31:20,668 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_f72c6932-19d2-4409-a4c4-68f974b1772c/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 -> e017d7bcecd9326dc3a012dec9b0fc34b9541a8f [2019-12-07 12:31:20,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:31:20,836 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:31:20,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:31:20,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:31:20,840 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:31:20,840 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/../../sv-benchmarks/c/ssh/s3_clnt.blast.04.i.cil-2.c [2019-12-07 12:31:20,883 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/data/ecc653199/2f2e9825a3ee4aa790a938ba91ddb58d/FLAG67b01e45a [2019-12-07 12:31:21,350 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:31:21,350 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/sv-benchmarks/c/ssh/s3_clnt.blast.04.i.cil-2.c [2019-12-07 12:31:21,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/data/ecc653199/2f2e9825a3ee4aa790a938ba91ddb58d/FLAG67b01e45a [2019-12-07 12:31:21,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/bin/utaipan/data/ecc653199/2f2e9825a3ee4aa790a938ba91ddb58d [2019-12-07 12:31:21,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:31:21,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:31:21,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:31:21,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:31:21,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:31:21,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:31:21" (1/1) ... [2019-12-07 12:31:21,871 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 12:31:21, skipping insertion in model container [2019-12-07 12:31:21,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:31:21" (1/1) ... [2019-12-07 12:31:21,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:31:21,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:31:22,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:31:22,204 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 12:31:22,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:31:22,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:31:22,298 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:31:22,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:31:22,384 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:31:22,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:22 WrapperNode [2019-12-07 12:31:22,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:31:22,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:31:22,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:31:22,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:31:22,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:22" (1/1) ... [2019-12-07 12:31:22,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:22" (1/1) ... [2019-12-07 12:31:22,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:31:22,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:31:22,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:31:22,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:31:22,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:22" (1/1) ... [2019-12-07 12:31:22,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:22" (1/1) ... [2019-12-07 12:31:22,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:22" (1/1) ... [2019-12-07 12:31:22,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:22" (1/1) ... [2019-12-07 12:31:22,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:22" (1/1) ... [2019-12-07 12:31:22,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:22" (1/1) ... [2019-12-07 12:31:22,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:22" (1/1) ... [2019-12-07 12:31:22,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:31:22,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:31:22,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:31:22,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:31:22,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/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 12:31:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 12:31:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:31:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 12:31:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 12:31:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 12:31:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:31:22,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:31:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 12:31:22,687 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 12:31:32,953 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2019-12-07 12:31:32,953 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2019-12-07 12:31:32,955 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:31:32,955 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 12:31:32,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:31:32 BoogieIcfgContainer [2019-12-07 12:31:32,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:31:32,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:31:32,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:31:32,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:31:32,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:31:21" (1/3) ... [2019-12-07 12:31:32,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668cfd98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:31:32, skipping insertion in model container [2019-12-07 12:31:32,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:22" (2/3) ... [2019-12-07 12:31:32,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668cfd98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:31:32, skipping insertion in model container [2019-12-07 12:31:32,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:31:32" (3/3) ... [2019-12-07 12:31:32,963 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-2.c [2019-12-07 12:31:32,969 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:31:32,974 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:31:32,982 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:31:33,000 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:31:33,000 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:31:33,000 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:31:33,000 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:31:33,001 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:31:33,001 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:31:33,001 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:31:33,001 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:31:33,014 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-12-07 12:31:33,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 12:31:33,020 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:31:33,020 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 12:31:33,021 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:31:33,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:31:33,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2019-12-07 12:31:33,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:31:33,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571952865] [2019-12-07 12:31:33,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/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 12:31:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:31:33,172 INFO L264 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:31:33,177 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:31:33,202 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 12:31:33,202 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:31:33,213 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 12:31:33,214 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571952865] [2019-12-07 12:31:33,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:31:33,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:31:33,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650551876] [2019-12-07 12:31:33,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:31:33,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:31:33,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:31:33,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:31:33,229 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 4 states. [2019-12-07 12:31:33,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:31:33,321 INFO L93 Difference]: Finished difference Result 488 states and 825 transitions. [2019-12-07 12:31:33,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:31:33,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 12:31:33,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:31:33,334 INFO L225 Difference]: With dead ends: 488 [2019-12-07 12:31:33,334 INFO L226 Difference]: Without dead ends: 315 [2019-12-07 12:31:33,337 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 12:31:33,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2019-12-07 12:31:33,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2019-12-07 12:31:33,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-12-07 12:31:33,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 472 transitions. [2019-12-07 12:31:33,380 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 472 transitions. Word has length 24 [2019-12-07 12:31:33,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:31:33,380 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 472 transitions. [2019-12-07 12:31:33,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:31:33,380 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 472 transitions. [2019-12-07 12:31:33,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-12-07 12:31:33,383 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:31:33,384 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:31:33,584 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:31:33,585 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:31:33,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:31:33,586 INFO L82 PathProgramCache]: Analyzing trace with hash -919689487, now seen corresponding path program 1 times [2019-12-07 12:31:33,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:31:33,588 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7058661] [2019-12-07 12:31:33,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/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 12:31:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:31:33,818 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:31:33,821 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:31:33,831 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:31:33,831 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:31:33,847 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:31:33,847 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7058661] [2019-12-07 12:31:33,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:31:33,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:31:33,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340302650] [2019-12-07 12:31:33,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:31:33,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:31:33,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:31:33,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:31:33,850 INFO L87 Difference]: Start difference. First operand 315 states and 472 transitions. Second operand 4 states. [2019-12-07 12:31:35,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:31:35,932 INFO L93 Difference]: Finished difference Result 724 states and 1092 transitions. [2019-12-07 12:31:35,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:31:35,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2019-12-07 12:31:35,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:31:35,935 INFO L225 Difference]: With dead ends: 724 [2019-12-07 12:31:35,935 INFO L226 Difference]: Without dead ends: 517 [2019-12-07 12:31:35,937 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 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 12:31:35,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2019-12-07 12:31:35,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2019-12-07 12:31:35,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2019-12-07 12:31:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 772 transitions. [2019-12-07 12:31:35,963 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 772 transitions. Word has length 60 [2019-12-07 12:31:35,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:31:35,964 INFO L462 AbstractCegarLoop]: Abstraction has 517 states and 772 transitions. [2019-12-07 12:31:35,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:31:35,964 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 772 transitions. [2019-12-07 12:31:35,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-12-07 12:31:35,969 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:31:35,969 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2019-12-07 12:31:36,169 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:31:36,170 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:31:36,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:31:36,170 INFO L82 PathProgramCache]: Analyzing trace with hash -874096830, now seen corresponding path program 1 times [2019-12-07 12:31:36,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:31:36,173 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752598828] [2019-12-07 12:31:36,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/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 12:31:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:31:36,408 INFO L264 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:31:36,412 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:31:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-12-07 12:31:36,424 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:31:36,437 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-12-07 12:31:36,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752598828] [2019-12-07 12:31:36,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:31:36,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:31:36,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279976549] [2019-12-07 12:31:36,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:31:36,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:31:36,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:31:36,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:31:36,439 INFO L87 Difference]: Start difference. First operand 517 states and 772 transitions. Second operand 4 states. [2019-12-07 12:31:38,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:31:38,509 INFO L93 Difference]: Finished difference Result 1128 states and 1691 transitions. [2019-12-07 12:31:38,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:31:38,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2019-12-07 12:31:38,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:31:38,512 INFO L225 Difference]: With dead ends: 1128 [2019-12-07 12:31:38,512 INFO L226 Difference]: Without dead ends: 719 [2019-12-07 12:31:38,514 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 194 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 12:31:38,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2019-12-07 12:31:38,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2019-12-07 12:31:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2019-12-07 12:31:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1071 transitions. [2019-12-07 12:31:38,531 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1071 transitions. Word has length 99 [2019-12-07 12:31:38,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:31:38,531 INFO L462 AbstractCegarLoop]: Abstraction has 719 states and 1071 transitions. [2019-12-07 12:31:38,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:31:38,531 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1071 transitions. [2019-12-07 12:31:38,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-12-07 12:31:38,535 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:31:38,535 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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 12:31:38,735 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:31:38,736 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:31:38,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:31:38,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1561396444, now seen corresponding path program 1 times [2019-12-07 12:31:38,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:31:38,738 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628527575] [2019-12-07 12:31:38,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/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 12:31:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:31:39,108 INFO L264 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:31:39,113 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:31:39,141 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 12:31:39,142 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 12:31:39,143 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 12:31:39,144 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 12:31:39,145 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 12:31:39,146 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 12:41:15,190 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-12-07 12:41:15,191 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628527575] [2019-12-07 12:41:15,192 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 12:41:15,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2021995656] [2019-12-07 12:41:15,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/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 12:41:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:41:24,125 INFO L264 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 12:41:24,126 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 12:41:24,127 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122918334] [2019-12-07 12:41:24,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f72c6932-19d2-4409-a4c4-68f974b1772c/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 12:41:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:41:24,283 INFO L264 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:41:24,286 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:41:24,290 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by |v_ULTIMATE.start_ssl3_connect_#t~nondet18_6| [2019-12-07 12:41:24,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:41:24,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2019-12-07 12:41:24,291 ERROR L206 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2019-12-07 12:41:24,291 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:41:24,896 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 12:41:24,931 WARN L229 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-12-07 12:41:24,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:41:24 BoogieIcfgContainer [2019-12-07 12:41:24,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:41:24,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:41:24,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:41:24,932 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:41:24,932 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:31:32" (3/4) ... [2019-12-07 12:41:24,935 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:41:24,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:41:24,936 INFO L168 Benchmark]: Toolchain (without parser) took 603070.02 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 289.9 MB). Free memory was 947.0 MB in the beginning and 824.8 MB in the end (delta: 122.3 MB). Peak memory consumption was 412.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:41:24,936 INFO L168 Benchmark]: CDTParser took 0.17 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 12:41:24,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -124.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:41:24,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.15 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:41:24,938 INFO L168 Benchmark]: Boogie Preprocessor took 62.82 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:41:24,938 INFO L168 Benchmark]: RCFGBuilder took 10442.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 937.8 MB in the end (delta: 120.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:41:24,938 INFO L168 Benchmark]: TraceAbstraction took 591974.07 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 165.7 MB). Free memory was 937.8 MB in the beginning and 824.8 MB in the end (delta: 113.1 MB). Peak memory consumption was 278.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:41:24,939 INFO L168 Benchmark]: Witness Printer took 2.97 ms. Allocated memory is still 1.3 GB. Free memory is still 824.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:41:24,941 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 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 518.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -124.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.15 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.82 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10442.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 937.8 MB in the end (delta: 120.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 591974.07 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 165.7 MB). Free memory was 937.8 MB in the beginning and 824.8 MB in the end (delta: 113.1 MB). Peak memory consumption was 278.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.97 ms. Allocated memory is still 1.3 GB. Free memory is still 824.8 MB. 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 [L1318] COND FALSE !(ret <= 0) [L1323] s->hit [L1323] COND TRUE s->hit [L1324] s->state = 4560 [L1328] 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 [L1332] EXPR s->s3 [L1332] EXPR (s->s3)->tmp.new_cipher [L1332] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1332] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1335] ret = __VERIFIER_nondet_int() [L1336] COND TRUE blastFlag == 2 [L1337] 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 FALSE !(s->state == 4384) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4385) [L1158] EXPR s->state [L1158] COND TRUE s->state == 4400 [L1332] EXPR s->s3 [L1332] EXPR (s->s3)->tmp.new_cipher [L1332] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1332] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1335] ret = __VERIFIER_nondet_int() [L1336] COND FALSE !(blastFlag == 2) [L1339] COND TRUE blastFlag == 4 [L1340] blastFlag = 5 [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 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: 591.8s, OverallIterations: 4, TraceHistogramMax: 6, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 801 SDtfs, 1075 SDslu, 981 SDs, 0 SdLazy, 92 SolverSat, 36 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=719occurred 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, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 360 ConstructedInterpolants, 0 QuantifiedInterpolants, 46618 SizeOfPredicates, 1 NumberOfNonLiveVariables, 528 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 298/298 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...