./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 782042467f0cb3a7476d3c48a134dfd084f9a32e ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 782042467f0cb3a7476d3c48a134dfd084f9a32e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:38:23,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:38:23,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:38:23,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:38:23,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:38:23,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:38:23,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:38:23,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:38:23,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:38:23,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:38:23,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:38:23,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:38:23,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:38:23,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:38:23,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:38:23,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:38:23,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:38:23,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:38:23,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:38:23,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:38:23,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:38:23,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:38:23,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:38:23,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:38:23,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:38:23,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:38:23,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:38:23,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:38:23,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:38:23,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:38:23,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:38:23,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:38:23,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:38:23,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:38:23,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:38:23,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:38:23,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:38:23,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:38:23,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:38:23,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:38:23,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:38:23,850 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:38:23,890 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:38:23,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:38:23,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:38:23,891 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:38:23,892 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:38:23,892 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:38:23,892 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:38:23,892 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:38:23,892 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:38:23,893 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:38:23,893 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:38:23,893 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:38:23,893 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:38:23,893 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:38:23,894 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:38:23,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:38:23,895 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:38:23,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:38:23,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:38:23,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:38:23,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:38:23,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:38:23,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:38:23,896 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:38:23,896 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:38:23,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:38:23,897 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:38:23,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:38:23,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:38:23,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:38:23,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:38:23,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:38:23,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:38:23,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:38:23,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:38:23,899 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:38:23,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:38:23,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:38:23,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:38:23,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:38:23,899 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 782042467f0cb3a7476d3c48a134dfd084f9a32e [2020-11-30 01:38:24,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:38:24,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:38:24,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:38:24,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:38:24,205 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:38:24,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c [2020-11-30 01:38:24,291 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/data/09039230e/6fccfab1fd844335a5682480bb0650f3/FLAGa8b599aa4 [2020-11-30 01:38:24,871 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:38:24,871 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c [2020-11-30 01:38:24,889 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/data/09039230e/6fccfab1fd844335a5682480bb0650f3/FLAGa8b599aa4 [2020-11-30 01:38:25,118 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/data/09039230e/6fccfab1fd844335a5682480bb0650f3 [2020-11-30 01:38:25,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:38:25,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:38:25,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:38:25,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:38:25,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:38:25,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:38:25" (1/1) ... [2020-11-30 01:38:25,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36091f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:25, skipping insertion in model container [2020-11-30 01:38:25,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:38:25" (1/1) ... [2020-11-30 01:38:25,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:38:25,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:38:25,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:38:25,696 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) [2020-11-30 01:38:25,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@306cac74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:25, skipping insertion in model container [2020-11-30 01:38:25,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:38:25,702 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-30 01:38:25,705 INFO L168 Benchmark]: Toolchain (without parser) took 579.29 ms. Allocated memory is still 94.4 MB. Free memory was 61.5 MB in the beginning and 62.8 MB in the end (delta: -1.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:38:25,707 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory is still 51.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:38:25,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 574.37 ms. Allocated memory is still 94.4 MB. Free memory was 61.3 MB in the beginning and 62.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:38:25,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory is still 51.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 574.37 ms. Allocated memory is still 94.4 MB. Free memory was 61.3 MB in the beginning and 62.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1040]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:38:28,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:38:28,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:38:28,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:38:28,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:38:28,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:38:28,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:38:28,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:38:28,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:38:28,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:38:28,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:38:28,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:38:28,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:38:28,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:38:28,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:38:28,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:38:28,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:38:28,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:38:28,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:38:28,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:38:28,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:38:28,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:38:28,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:38:28,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:38:28,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:38:28,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:38:28,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:38:28,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:38:28,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:38:28,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:38:28,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:38:28,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:38:28,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:38:28,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:38:28,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:38:28,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:38:28,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:38:28,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:38:28,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:38:28,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:38:28,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:38:28,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 01:38:28,299 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:38:28,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:38:28,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:38:28,302 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:38:28,302 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:38:28,302 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:38:28,303 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:38:28,303 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:38:28,303 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:38:28,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:38:28,306 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:38:28,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:38:28,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:38:28,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:38:28,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:38:28,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:38:28,307 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:38:28,307 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:38:28,308 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:38:28,308 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:38:28,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:38:28,308 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:38:28,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:38:28,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:38:28,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:38:28,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:38:28,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:38:28,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:38:28,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:38:28,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:38:28,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:38:28,311 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 01:38:28,311 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:38:28,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:38:28,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:38:28,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:38:28,312 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 782042467f0cb3a7476d3c48a134dfd084f9a32e [2020-11-30 01:38:28,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:38:28,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:38:28,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:38:28,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:38:28,783 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:38:28,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c [2020-11-30 01:38:28,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/data/ab7105d7a/9739f5910a8f4c02887e0377cea779df/FLAG9f444eb3c [2020-11-30 01:38:29,445 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:38:29,446 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c [2020-11-30 01:38:29,469 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/data/ab7105d7a/9739f5910a8f4c02887e0377cea779df/FLAG9f444eb3c [2020-11-30 01:38:29,707 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/bin/utaipan/data/ab7105d7a/9739f5910a8f4c02887e0377cea779df [2020-11-30 01:38:29,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:38:29,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:38:29,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:38:29,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:38:29,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:38:29,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:38:29" (1/1) ... [2020-11-30 01:38:29,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8bd0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:29, skipping insertion in model container [2020-11-30 01:38:29,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:38:29" (1/1) ... [2020-11-30 01:38:29,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:38:29,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:38:30,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:38:30,350 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-30 01:38:30,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:38:30,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:38:30,496 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:38:30,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:38:30,690 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:38:30,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:30 WrapperNode [2020-11-30 01:38:30,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:38:30,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:38:30,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:38:30,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:38:30,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:30" (1/1) ... [2020-11-30 01:38:30,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:30" (1/1) ... [2020-11-30 01:38:30,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:38:30,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:38:30,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:38:30,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:38:30,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:30" (1/1) ... [2020-11-30 01:38:30,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:30" (1/1) ... [2020-11-30 01:38:30,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:30" (1/1) ... [2020-11-30 01:38:30,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:30" (1/1) ... [2020-11-30 01:38:30,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:30" (1/1) ... [2020-11-30 01:38:30,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:30" (1/1) ... [2020-11-30 01:38:30,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:30" (1/1) ... [2020-11-30 01:38:30,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:38:30,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:38:30,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:38:30,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:38:30,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/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 [2020-11-30 01:38:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:38:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 01:38:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:38:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:38:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 01:38:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 01:38:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:38:31,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:38:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:38:31,298 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:38:44,447 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-11-30 01:38:44,448 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-11-30 01:38:44,471 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:38:44,471 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 01:38:44,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:38:44 BoogieIcfgContainer [2020-11-30 01:38:44,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:38:44,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:38:44,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:38:44,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:38:44,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:38:29" (1/3) ... [2020-11-30 01:38:44,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7aff4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:38:44, skipping insertion in model container [2020-11-30 01:38:44,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:38:30" (2/3) ... [2020-11-30 01:38:44,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7aff4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:38:44, skipping insertion in model container [2020-11-30 01:38:44,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:38:44" (3/3) ... [2020-11-30 01:38:44,483 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-2.c [2020-11-30 01:38:44,494 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:38:44,499 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:38:44,512 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:38:44,551 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:38:44,551 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:38:44,551 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:38:44,551 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:38:44,552 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:38:44,552 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:38:44,552 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:38:44,552 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:38:44,574 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-11-30 01:38:44,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:38:44,584 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:38:44,585 INFO L422 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] [2020-11-30 01:38:44,585 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:38:44,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:38:44,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1457703967, now seen corresponding path program 1 times [2020-11-30 01:38:44,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:38:44,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312649423] [2020-11-30 01:38:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/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 [2020-11-30 01:38:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:38:44,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:38:44,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:38:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:38:44,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:38:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:38:44,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312649423] [2020-11-30 01:38:44,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:38:44,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 01:38:44,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6483642] [2020-11-30 01:38:44,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:38:44,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:38:44,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:38:44,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:38:44,958 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 4 states. [2020-11-30 01:38:45,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:38:45,118 INFO L93 Difference]: Finished difference Result 376 states and 627 transitions. [2020-11-30 01:38:45,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:38:45,120 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-30 01:38:45,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:38:45,142 INFO L225 Difference]: With dead ends: 376 [2020-11-30 01:38:45,143 INFO L226 Difference]: Without dead ends: 217 [2020-11-30 01:38:45,148 INFO L677 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 [2020-11-30 01:38:45,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-11-30 01:38:45,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-11-30 01:38:45,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-11-30 01:38:45,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 320 transitions. [2020-11-30 01:38:45,253 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 320 transitions. Word has length 24 [2020-11-30 01:38:45,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:38:45,254 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 320 transitions. [2020-11-30 01:38:45,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:38:45,254 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 320 transitions. [2020-11-30 01:38:45,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-30 01:38:45,258 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:38:45,258 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-30 01:38:45,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:38:45,479 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:38:45,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:38:45,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1495258694, now seen corresponding path program 1 times [2020-11-30 01:38:45,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:38:45,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711395652] [2020-11-30 01:38:45,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/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 [2020-11-30 01:38:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:38:45,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:38:45,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:38:45,700 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:38:45,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:38:45,714 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:38:45,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [711395652] [2020-11-30 01:38:45,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:38:45,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 01:38:45,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553754237] [2020-11-30 01:38:45,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:38:45,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:38:45,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:38:45,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:38:45,721 INFO L87 Difference]: Start difference. First operand 217 states and 320 transitions. Second operand 4 states. [2020-11-30 01:38:47,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:38:47,891 INFO L93 Difference]: Finished difference Result 528 states and 787 transitions. [2020-11-30 01:38:47,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:38:47,893 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-11-30 01:38:47,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:38:47,896 INFO L225 Difference]: With dead ends: 528 [2020-11-30 01:38:47,896 INFO L226 Difference]: Without dead ends: 421 [2020-11-30 01:38:47,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:38:47,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-11-30 01:38:47,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2020-11-30 01:38:47,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-11-30 01:38:47,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 622 transitions. [2020-11-30 01:38:47,940 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 622 transitions. Word has length 41 [2020-11-30 01:38:47,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:38:47,948 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 622 transitions. [2020-11-30 01:38:47,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:38:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 622 transitions. [2020-11-30 01:38:47,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-11-30 01:38:47,955 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:38:47,955 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:38:48,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:38:48,162 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:38:48,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:38:48,162 INFO L82 PathProgramCache]: Analyzing trace with hash 924360661, now seen corresponding path program 1 times [2020-11-30 01:38:48,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:38:48,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870305051] [2020-11-30 01:38:48,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/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 [2020-11-30 01:38:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:38:48,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:38:48,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:38:48,485 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-30 01:38:48,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:38:48,516 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-30 01:38:48,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870305051] [2020-11-30 01:38:48,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:38:48,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 01:38:48,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335964259] [2020-11-30 01:38:48,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:38:48,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:38:48,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:38:48,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:38:48,518 INFO L87 Difference]: Start difference. First operand 421 states and 622 transitions. Second operand 4 states. [2020-11-30 01:38:50,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:38:50,669 INFO L93 Difference]: Finished difference Result 939 states and 1394 transitions. [2020-11-30 01:38:50,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:38:50,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2020-11-30 01:38:50,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:38:50,674 INFO L225 Difference]: With dead ends: 939 [2020-11-30 01:38:50,674 INFO L226 Difference]: Without dead ends: 628 [2020-11-30 01:38:50,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:38:50,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-11-30 01:38:50,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-11-30 01:38:50,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-11-30 01:38:50,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 927 transitions. [2020-11-30 01:38:50,715 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 927 transitions. Word has length 80 [2020-11-30 01:38:50,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:38:50,718 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 927 transitions. [2020-11-30 01:38:50,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:38:50,719 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 927 transitions. [2020-11-30 01:38:50,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-11-30 01:38:50,725 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:38:50,726 INFO L422 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, 1] [2020-11-30 01:38:50,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:38:50,946 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:38:50,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:38:50,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1855651051, now seen corresponding path program 1 times [2020-11-30 01:38:50,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:38:50,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852953702] [2020-11-30 01:38:50,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/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 [2020-11-30 01:38:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:38:51,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:38:51,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:38:51,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 01:38:51,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 01:38:51,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 01:38:51,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 01:38:51,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 01:38:51,546 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-30 01:53:51,885 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-11-30 01:53:51,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852953702] [2020-11-30 01:53:51,887 WARN L332 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") [2020-11-30 01:53:51,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1662508206] [2020-11-30 01:53:51,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/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 [2020-11-30 01:53:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:53:53,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:53:53,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:53:53,065 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken [2020-11-30 01:53:53,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738904755] [2020-11-30 01:53:53,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c90bbc1-a506-4238-8241-6d4d551d69c3/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 [2020-11-30 01:53:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:53:53,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:53:53,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:53:53,347 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@57cf47e1 [2020-11-30 01:53:53,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:53:53,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-11-30 01:53:53,347 ERROR L205 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2020-11-30 01:53:53,348 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:53:53,952 WARN L518 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 [2020-11-30 01:53:53,985 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-30 01:53:53,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:53:53 BoogieIcfgContainer [2020-11-30 01:53:53,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:53:53,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:53:53,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:53:53,989 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:53:53,990 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:38:44" (3/4) ... [2020-11-30 01:53:53,993 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:53:53,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:53:53,996 INFO L168 Benchmark]: Toolchain (without parser) took 924284.41 ms. Allocated memory was 56.6 MB in the beginning and 96.5 MB in the end (delta: 39.8 MB). Free memory was 32.9 MB in the beginning and 51.5 MB in the end (delta: -18.6 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:53:53,997 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory is still 38.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:53:54,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 979.39 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 32.8 MB in the beginning and 43.1 MB in the end (delta: -10.3 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:53:54,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.55 ms. Allocated memory is still 73.4 MB. Free memory was 43.1 MB in the beginning and 38.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:53:54,004 INFO L168 Benchmark]: Boogie Preprocessor took 124.50 ms. Allocated memory is still 73.4 MB. Free memory was 38.9 MB in the beginning and 49.4 MB in the end (delta: -10.5 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:53:54,005 INFO L168 Benchmark]: RCFGBuilder took 13540.24 ms. Allocated memory was 73.4 MB in the beginning and 96.5 MB in the end (delta: 23.1 MB). Free memory was 49.4 MB in the beginning and 34.5 MB in the end (delta: 14.9 MB). Peak memory consumption was 40.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:53:54,005 INFO L168 Benchmark]: TraceAbstraction took 909511.30 ms. Allocated memory is still 96.5 MB. Free memory was 33.7 MB in the beginning and 52.4 MB in the end (delta: -18.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:53:54,007 INFO L168 Benchmark]: Witness Printer took 6.39 ms. Allocated memory is still 96.5 MB. Free memory was 52.4 MB in the beginning and 51.5 MB in the end (delta: 886.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:53:54,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory is still 38.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 979.39 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 32.8 MB in the beginning and 43.1 MB in the end (delta: -10.3 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 115.55 ms. Allocated memory is still 73.4 MB. Free memory was 43.1 MB in the beginning and 38.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 124.50 ms. Allocated memory is still 73.4 MB. Free memory was 38.9 MB in the beginning and 49.4 MB in the end (delta: -10.5 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 13540.24 ms. Allocated memory was 73.4 MB in the beginning and 96.5 MB in the end (delta: 23.1 MB). Free memory was 49.4 MB in the beginning and 34.5 MB in the end (delta: 14.9 MB). Peak memory consumption was 40.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 909511.30 ms. Allocated memory is still 96.5 MB. Free memory was 33.7 MB in the beginning and 52.4 MB in the end (delta: -18.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.39 ms. Allocated memory is still 96.5 MB. Free memory was 52.4 MB in the beginning and 51.5 MB in the end (delta: 886.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: 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: [L1044] static int init = 1; [L1045] static SSL_METHOD SSLv3_client_data ; [L1067] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1071] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1072] s->ctx = malloc(sizeof(SSL_CTX)) [L1073] s->session = malloc(sizeof(SSL_SESSION)) [L1074] s->state = 12292 [L1075] s->version = __VERIFIER_nondet_int() [L1082] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1083] unsigned long tmp ; [L1084] unsigned long l ; [L1085] long num1 ; [L1086] void (*cb)() ; [L1087] int ret ; [L1088] int new_state ; [L1089] int state ; [L1090] int skip ; [L1091] int tmp___1 = __VERIFIER_nondet_int() ; [L1092] int tmp___2 = __VERIFIER_nondet_int() ; [L1093] int tmp___3 ; [L1094] int tmp___4 ; [L1095] int tmp___5 ; [L1096] int tmp___6 ; [L1097] int tmp___7 ; [L1098] int tmp___8 ; [L1099] long tmp___9 ; [L1101] int blastFlag ; [L1104] blastFlag = 0 [L1105] s->hit=__VERIFIER_nondet_int () [L1106] s->state = 12292 [L1107] tmp = __VERIFIER_nondet_int() [L1108] cb = (void (*)())((void *)0) [L1109] ret = -1 [L1110] skip = 0 [L1111] EXPR s->info_callback [L1111] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1112] EXPR s->info_callback [L1112] cb = s->info_callback [L1120] EXPR s->in_handshake [L1120] s->in_handshake += 1 [L1121] COND FALSE !(tmp___1 & 12288) [L1131] COND TRUE 1 [L1133] EXPR s->state [L1133] state = s->state [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 12292) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 16384) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 4096) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 20480) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4099) [L1149] EXPR s->state [L1149] COND TRUE s->state == 4368 [L1289] s->shutdown = 0 [L1290] ret = __VERIFIER_nondet_int() [L1291] COND TRUE blastFlag == 0 [L1292] blastFlag = 1 [L1296] COND FALSE !(ret <= 0) [L1301] s->state = 4384 [L1302] s->init_num = 0 [L1303] EXPR s->bbio [L1303] EXPR s->wbio [L1303] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1605] EXPR s->s3 [L1605] EXPR (s->s3)->tmp.reuse_message [L1605] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1634] skip = 0 [L1131] COND TRUE 1 [L1133] EXPR s->state [L1133] state = s->state [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 12292) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 16384) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 4096) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 20480) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4099) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4368) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4369) [L1155] EXPR s->state [L1155] COND TRUE s->state == 4384 [L1311] ret = __VERIFIER_nondet_int() [L1312] COND TRUE blastFlag == 1 [L1313] blastFlag = 2 [L1317] COND FALSE !(ret <= 0) [L1322] s->hit [L1322] COND TRUE s->hit [L1323] s->state = 4560 [L1327] s->init_num = 0 [L1605] EXPR s->s3 [L1605] EXPR (s->s3)->tmp.reuse_message [L1605] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1634] skip = 0 [L1131] COND TRUE 1 [L1133] EXPR s->state [L1133] state = s->state [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 12292) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 16384) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 4096) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 20480) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4099) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4368) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4369) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4384) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4385) [L1161] EXPR s->state [L1161] COND TRUE s->state == 4400 [L1331] EXPR s->s3 [L1331] EXPR (s->s3)->tmp.new_cipher [L1331] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1331] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1334] ret = __VERIFIER_nondet_int() [L1335] COND TRUE blastFlag == 2 [L1336] blastFlag = 3 [L1340] COND FALSE !(ret <= 0) [L1346] s->state = 4416 [L1347] s->init_num = 0 [L1605] EXPR s->s3 [L1605] EXPR (s->s3)->tmp.reuse_message [L1605] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1634] skip = 0 [L1131] COND TRUE 1 [L1133] EXPR s->state [L1133] state = s->state [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 12292) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 16384) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 4096) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 20480) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4099) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4368) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4369) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4384) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4385) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4400) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4401) [L1167] EXPR s->state [L1167] COND TRUE s->state == 4416 [L1351] ret = __VERIFIER_nondet_int() [L1352] COND TRUE blastFlag == 3 [L1353] blastFlag = 4 [L1357] COND FALSE !(ret <= 0) [L1362] s->state = 4432 [L1363] s->init_num = 0 [L1364] tmp___6 = __VERIFIER_nondet_int() [L1365] COND FALSE !(! tmp___6) [L1605] EXPR s->s3 [L1605] EXPR (s->s3)->tmp.reuse_message [L1605] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1634] skip = 0 [L1131] COND TRUE 1 [L1133] EXPR s->state [L1133] state = s->state [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 12292) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 16384) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 4096) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 20480) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4099) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4368) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4369) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4384) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4385) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4400) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4401) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4416) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4417) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 4432) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 4433) [L1179] EXPR s->state [L1179] COND TRUE s->state == 4448 [L1390] ret = __VERIFIER_nondet_int() [L1391] COND TRUE blastFlag == 4 [L3] __assert_fail("0", "s3_clnt.blast.01.i.cil-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 132 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 909.4s, OverallIterations: 4, TraceHistogramMax: 5, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 809 SDtfs, 1079 SDslu, 799 SDs, 0 SdLazy, 83 SolverSat, 29 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=628occurred 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 32845 SizeOfPredicates, 2 NumberOfNonLiveVariables, 496 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 150/150 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...