./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE --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 781939b227b3ba0a20ad2d0323c2d13ae338349fb5c0bf292cccf74fd05cfb42 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE --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 781939b227b3ba0a20ad2d0323c2d13ae338349fb5c0bf292cccf74fd05cfb42 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 09:47:15,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:47:15,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:47:15,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:47:15,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:47:15,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:47:15,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:47:15,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:47:15,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:47:15,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:47:15,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:47:15,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:47:15,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:47:15,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:47:15,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:47:15,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:47:15,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:47:15,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:47:15,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:47:15,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:47:15,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:47:15,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:47:15,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:47:15,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:47:15,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:47:15,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:47:15,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:47:15,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:47:15,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:47:15,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:47:15,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:47:15,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:47:15,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:47:15,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:47:15,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:47:15,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:47:15,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:47:15,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:47:15,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:47:15,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:47:15,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:47:15,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 09:47:15,973 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:47:15,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:47:15,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:47:15,974 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:47:15,975 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:47:15,975 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:47:15,976 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 09:47:15,976 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:47:15,976 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:47:15,977 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 09:47:15,977 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 09:47:15,977 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:47:15,977 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 09:47:15,978 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 09:47:15,978 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 09:47:15,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:47:15,979 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:47:15,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 09:47:15,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:47:15,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:47:15,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 09:47:15,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:47:15,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 09:47:15,981 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:47:15,981 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:47:15,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 09:47:15,982 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:47:15,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 09:47:15,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:47:15,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:47:15,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:47:15,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:47:15,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:47:15,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 09:47:15,984 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 09:47:15,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 09:47:15,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 09:47:15,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:47:15,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:47:15,985 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_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 781939b227b3ba0a20ad2d0323c2d13ae338349fb5c0bf292cccf74fd05cfb42 [2021-10-24 09:47:16,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:47:16,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:47:16,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:47:16,281 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:47:16,282 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:47:16,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c [2021-10-24 09:47:16,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/data/2f8c7ba84/01b16dc928c74e06afcc04d3ce492bc6/FLAG32c6f02c6 [2021-10-24 09:47:16,963 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:47:16,964 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c [2021-10-24 09:47:17,012 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/data/2f8c7ba84/01b16dc928c74e06afcc04d3ce492bc6/FLAG32c6f02c6 [2021-10-24 09:47:17,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/data/2f8c7ba84/01b16dc928c74e06afcc04d3ce492bc6 [2021-10-24 09:47:17,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:47:17,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:47:17,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:47:17,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:47:17,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:47:17,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:47:17" (1/1) ... [2021-10-24 09:47:17,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54a5e20c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:17, skipping insertion in model container [2021-10-24 09:47:17,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:47:17" (1/1) ... [2021-10-24 09:47:17,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:47:17,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:47:17,721 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c[65520,65533] [2021-10-24 09:47:17,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:47:17,751 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) [2021-10-24 09:47:17,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@533abfea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:17, skipping insertion in model container [2021-10-24 09:47:17,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:47:17,753 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 09:47:17,755 INFO L168 Benchmark]: Toolchain (without parser) took 545.30 ms. Allocated memory is still 130.0 MB. Free memory was 90.0 MB in the beginning and 96.0 MB in the end (delta: -6.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:17,756 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 130.0 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:47:17,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.24 ms. Allocated memory is still 130.0 MB. Free memory was 89.8 MB in the beginning and 96.0 MB in the end (delta: -6.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:17,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 130.0 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 538.24 ms. Allocated memory is still 130.0 MB. Free memory was 89.8 MB in the beginning and 96.0 MB in the end (delta: -6.2 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: 1050]: 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 0.2.1-dev-e943c26 [2021-10-24 09:47:19,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:47:19,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:47:20,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:47:20,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:47:20,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:47:20,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:47:20,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:47:20,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:47:20,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:47:20,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:47:20,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:47:20,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:47:20,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:47:20,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:47:20,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:47:20,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:47:20,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:47:20,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:47:20,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:47:20,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:47:20,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:47:20,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:47:20,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:47:20,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:47:20,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:47:20,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:47:20,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:47:20,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:47:20,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:47:20,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:47:20,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:47:20,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:47:20,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:47:20,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:47:20,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:47:20,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:47:20,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:47:20,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:47:20,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:47:20,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:47:20,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 09:47:20,166 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:47:20,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:47:20,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:47:20,168 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:47:20,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:47:20,169 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:47:20,169 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:47:20,169 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:47:20,170 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:47:20,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:47:20,172 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:47:20,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:47:20,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:47:20,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 09:47:20,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:47:20,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 09:47:20,174 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:47:20,174 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 09:47:20,174 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 09:47:20,174 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:47:20,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 09:47:20,175 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:47:20,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 09:47:20,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:47:20,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 09:47:20,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:47:20,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:47:20,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:47:20,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:47:20,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 09:47:20,177 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 09:47:20,177 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 09:47:20,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 09:47:20,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:47:20,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:47:20,178 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_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 781939b227b3ba0a20ad2d0323c2d13ae338349fb5c0bf292cccf74fd05cfb42 [2021-10-24 09:47:20,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:47:20,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:47:20,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:47:20,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:47:20,560 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:47:20,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c [2021-10-24 09:47:20,625 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/data/b62e949bd/f9e962eba67c4ac89f024dad38e6c614/FLAG9d7e9e0e7 [2021-10-24 09:47:21,362 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:47:21,363 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c [2021-10-24 09:47:21,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/data/b62e949bd/f9e962eba67c4ac89f024dad38e6c614/FLAG9d7e9e0e7 [2021-10-24 09:47:21,534 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/data/b62e949bd/f9e962eba67c4ac89f024dad38e6c614 [2021-10-24 09:47:21,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:47:21,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:47:21,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:47:21,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:47:21,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:47:21,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:47:21" (1/1) ... [2021-10-24 09:47:21,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31aa80a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:21, skipping insertion in model container [2021-10-24 09:47:21,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:47:21" (1/1) ... [2021-10-24 09:47:21,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:47:21,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:47:22,083 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c[65520,65533] [2021-10-24 09:47:22,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:47:22,139 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 09:47:22,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:47:22,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c[65520,65533] [2021-10-24 09:47:22,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:47:22,307 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 09:47:22,435 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c[65520,65533] [2021-10-24 09:47:22,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:47:22,470 INFO L208 MainTranslator]: Completed translation [2021-10-24 09:47:22,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:22 WrapperNode [2021-10-24 09:47:22,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:47:22,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 09:47:22,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 09:47:22,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 09:47:22,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:22" (1/1) ... [2021-10-24 09:47:22,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:22" (1/1) ... [2021-10-24 09:47:22,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 09:47:22,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 09:47:22,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 09:47:22,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 09:47:22,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:22" (1/1) ... [2021-10-24 09:47:22,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:22" (1/1) ... [2021-10-24 09:47:22,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:22" (1/1) ... [2021-10-24 09:47:22,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:22" (1/1) ... [2021-10-24 09:47:22,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:22" (1/1) ... [2021-10-24 09:47:22,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:22" (1/1) ... [2021-10-24 09:47:22,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:22" (1/1) ... [2021-10-24 09:47:22,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 09:47:22,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 09:47:22,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 09:47:22,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 09:47:22,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:22" (1/1) ... [2021-10-24 09:47:22,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:47:22,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:47:22,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 09:47:22,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 09:47:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 09:47:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-24 09:47:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 09:47:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-24 09:47:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-24 09:47:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-24 09:47:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 09:47:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 09:47:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-24 09:47:23,097 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:47:31,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-24 09:47:31,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-24 09:47:31,733 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 09:47:31,733 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-24 09:47:31,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:47:31 BoogieIcfgContainer [2021-10-24 09:47:31,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 09:47:31,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 09:47:31,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 09:47:31,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 09:47:31,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:47:21" (1/3) ... [2021-10-24 09:47:31,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7364d03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:47:31, skipping insertion in model container [2021-10-24 09:47:31,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:22" (2/3) ... [2021-10-24 09:47:31,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7364d03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:47:31, skipping insertion in model container [2021-10-24 09:47:31,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:47:31" (3/3) ... [2021-10-24 09:47:31,759 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-2.c [2021-10-24 09:47:31,764 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 09:47:31,764 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 09:47:31,812 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 09:47:31,817 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 09:47:31,817 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 09:47:31,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.689922480620155) internal successors, (218), 130 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:31,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 09:47:31,843 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:31,844 INFO L512 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] [2021-10-24 09:47:31,844 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:31,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:31,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1457703967, now seen corresponding path program 1 times [2021-10-24 09:47:31,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:31,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197501492] [2021-10-24 09:47:31,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:31,871 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:31,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:31,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:31,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 09:47:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:32,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:32,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:32,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:32,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:32,598 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:32,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197501492] [2021-10-24 09:47:32,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197501492] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:32,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:32,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:47:32,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008746735] [2021-10-24 09:47:32,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:47:32,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:32,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:47:32,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:32,631 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.689922480620155) internal successors, (218), 130 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:32,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:32,799 INFO L93 Difference]: Finished difference Result 375 states and 626 transitions. [2021-10-24 09:47:32,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:47:32,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 09:47:32,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:32,813 INFO L225 Difference]: With dead ends: 375 [2021-10-24 09:47:32,813 INFO L226 Difference]: Without dead ends: 217 [2021-10-24 09:47:32,816 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:32,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-10-24 09:47:32,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-10-24 09:47:32,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.4814814814814814) internal successors, (320), 216 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:32,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 320 transitions. [2021-10-24 09:47:32,870 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 320 transitions. Word has length 24 [2021-10-24 09:47:32,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:32,871 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 320 transitions. [2021-10-24 09:47:32,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:32,871 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 320 transitions. [2021-10-24 09:47:32,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-24 09:47:32,874 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:32,875 INFO L512 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] [2021-10-24 09:47:32,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:33,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:33,092 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:33,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:33,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1495258694, now seen corresponding path program 1 times [2021-10-24 09:47:33,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:33,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575012459] [2021-10-24 09:47:33,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:33,095 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:33,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:33,096 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:33,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 09:47:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:33,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:33,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:33,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:33,850 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:33,851 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:33,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575012459] [2021-10-24 09:47:33,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575012459] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:33,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:33,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:47:33,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012065393] [2021-10-24 09:47:33,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:47:33,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:33,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:47:33,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:33,854 INFO L87 Difference]: Start difference. First operand 217 states and 320 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:36,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:36,078 INFO L93 Difference]: Finished difference Result 628 states and 933 transitions. [2021-10-24 09:47:36,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:47:36,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-10-24 09:47:36,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:36,084 INFO L225 Difference]: With dead ends: 628 [2021-10-24 09:47:36,085 INFO L226 Difference]: Without dead ends: 521 [2021-10-24 09:47:36,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2021-10-24 09:47:36,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 421. [2021-10-24 09:47:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.480952380952381) internal successors, (622), 420 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:36,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 622 transitions. [2021-10-24 09:47:36,155 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 622 transitions. Word has length 41 [2021-10-24 09:47:36,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:36,156 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 622 transitions. [2021-10-24 09:47:36,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:36,157 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 622 transitions. [2021-10-24 09:47:36,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-24 09:47:36,165 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:36,166 INFO L512 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] [2021-10-24 09:47:36,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:36,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:36,380 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:36,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:36,382 INFO L82 PathProgramCache]: Analyzing trace with hash 924360661, now seen corresponding path program 1 times [2021-10-24 09:47:36,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:36,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720807209] [2021-10-24 09:47:36,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:36,385 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:36,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:36,386 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:36,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 09:47:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:36,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:36,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:37,080 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-24 09:47:37,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:37,440 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-24 09:47:37,440 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:37,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720807209] [2021-10-24 09:47:37,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720807209] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:37,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:37,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:47:37,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177153060] [2021-10-24 09:47:37,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:47:37,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:37,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:47:37,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:37,444 INFO L87 Difference]: Start difference. First operand 421 states and 622 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:39,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:39,630 INFO L93 Difference]: Finished difference Result 939 states and 1394 transitions. [2021-10-24 09:47:39,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:47:39,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-10-24 09:47:39,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:39,637 INFO L225 Difference]: With dead ends: 939 [2021-10-24 09:47:39,637 INFO L226 Difference]: Without dead ends: 628 [2021-10-24 09:47:39,642 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:39,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2021-10-24 09:47:39,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2021-10-24 09:47:39,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 627 states have (on average 1.4784688995215312) internal successors, (927), 627 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:39,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 927 transitions. [2021-10-24 09:47:39,709 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 927 transitions. Word has length 80 [2021-10-24 09:47:39,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:39,711 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 927 transitions. [2021-10-24 09:47:39,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 927 transitions. [2021-10-24 09:47:39,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-10-24 09:47:39,724 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:39,725 INFO L512 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] [2021-10-24 09:47:39,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:39,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:39,943 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:39,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:39,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1855651051, now seen corresponding path program 1 times [2021-10-24 09:47:39,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:39,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489451236] [2021-10-24 09:47:39,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:39,952 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:39,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:39,953 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:39,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 09:47:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:40,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:47:40,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:56,334 WARN L207 SmtUtils]: Spent 15.40 s on a formula simplification that was a NOOP. DAG size: 19 [2021-10-24 09:47:56,334 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:47:56,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 4938 treesize of output 4458 [2021-10-24 09:48:35,968 WARN L207 SmtUtils]: Spent 39.56 s on a formula simplification that was a NOOP. DAG size: 23 [2021-10-24 09:48:35,969 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:48:35,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 4439 treesize of output 4067 [2021-10-24 09:59:39,336 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-24 09:59:39,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2021-10-24 09:59:39,338 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:59:39,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489451236] [2021-10-24 09:59:39,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-24 09:59:39,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [515491433] [2021-10-24 09:59:39,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:59:39,339 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 09:59:39,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 09:59:39,341 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 09:59:39,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-10-24 10:01:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:01:13,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-24 10:01:13,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:01:13,488 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-24 10:01:13,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542276501] [2021-10-24 10:01:13,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:01:13,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:01:13,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:01:13,507 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:01:13,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-24 10:01:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:01:13,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:01:13,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-24 10:01:13,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:01:13,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-24 10:01:13,894 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-24 10:01:13,894 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-24 10:01:13,902 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:01:13,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:01:14,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:01:14,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:01:14,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b244d7-8692-4cfa-8fbf-9fa310c6b939/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:01:14,529 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:01:14,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:01:14 BoogieIcfgContainer [2021-10-24 10:01:14,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:01:14,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:01:14,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:01:14,580 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:01:14,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:47:31" (3/4) ... [2021-10-24 10:01:14,587 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:01:14,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:01:14,589 INFO L168 Benchmark]: Toolchain (without parser) took 833042.29 ms. Allocated memory was 56.6 MB in the beginning and 96.5 MB in the end (delta: 39.8 MB). Free memory was 32.8 MB in the beginning and 36.1 MB in the end (delta: -3.4 MB). Peak memory consumption was 36.7 MB. Max. memory is 16.1 GB. [2021-10-24 10:01:14,591 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 56.6 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:01:14,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 921.08 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 32.6 MB in the beginning and 40.6 MB in the end (delta: -8.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2021-10-24 10:01:14,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.60 ms. Allocated memory is still 71.3 MB. Free memory was 40.6 MB in the beginning and 36.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:01:14,592 INFO L168 Benchmark]: Boogie Preprocessor took 158.80 ms. Allocated memory is still 71.3 MB. Free memory was 36.0 MB in the beginning and 46.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-24 10:01:14,593 INFO L168 Benchmark]: RCFGBuilder took 8979.11 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 46.4 MB in the beginning and 29.6 MB in the end (delta: 16.8 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. [2021-10-24 10:01:14,593 INFO L168 Benchmark]: TraceAbstraction took 822841.23 ms. Allocated memory is still 96.5 MB. Free memory was 29.2 MB in the beginning and 37.0 MB in the end (delta: -7.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:01:14,594 INFO L168 Benchmark]: Witness Printer took 8.81 ms. Allocated memory is still 96.5 MB. Free memory is still 36.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:01:14,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 56.6 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 921.08 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 32.6 MB in the beginning and 40.6 MB in the end (delta: -8.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 123.60 ms. Allocated memory is still 71.3 MB. Free memory was 40.6 MB in the beginning and 36.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 158.80 ms. Allocated memory is still 71.3 MB. Free memory was 36.0 MB in the beginning and 46.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8979.11 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 46.4 MB in the beginning and 29.6 MB in the end (delta: 16.8 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 822841.23 ms. Allocated memory is still 96.5 MB. Free memory was 29.2 MB in the beginning and 37.0 MB in the end (delta: -7.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 8.81 ms. Allocated memory is still 96.5 MB. Free memory is still 36.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1668]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_client_data ; [L1077] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1081] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1082] s->ctx = malloc(sizeof(SSL_CTX)) [L1083] s->session = malloc(sizeof(SSL_SESSION)) [L1084] s->state = 12292 [L1085] s->version = __VERIFIER_nondet_int() [L1087] s->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1088] EXPR s->ctx [L1088] (s->ctx)->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1089] s->init_buf = (BUF_MEM *)__VERIFIER_nondet_ulong() [L1090] s->bbio = (BIO *) __VERIFIER_nondet_ulong() [L1091] s->wbio = (BIO *) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->flags = __VERIFIER_nondet_long() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.cert_req = __VERIFIER_nondet_int() [L1094] EXPR s->s3 [L1094] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1096] EXPR s->s3 [L1096] (s->s3)->tmp.next_state = __VERIFIER_nondet_int() [L1104] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1105] unsigned long tmp ; [L1106] unsigned long l ; [L1107] long num1 ; [L1108] void (*cb)() ; [L1109] int ret ; [L1110] int new_state ; [L1111] int state ; [L1112] int skip ; [L1113] int tmp___1 = __VERIFIER_nondet_int() ; [L1114] int tmp___2 = __VERIFIER_nondet_int() ; [L1115] int tmp___3 ; [L1116] int tmp___4 ; [L1117] int tmp___5 ; [L1118] int tmp___6 ; [L1119] int tmp___7 ; [L1120] int tmp___8 ; [L1121] long tmp___9 ; [L1123] int blastFlag ; [L1126] blastFlag = 0 [L1127] s->hit=__VERIFIER_nondet_int () [L1128] s->state = 12292 [L1129] tmp = __VERIFIER_nondet_int() [L1130] cb = (void (*)())((void *)0) [L1131] ret = -1 [L1132] skip = 0 [L1133] EXPR s->info_callback [L1133] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1134] EXPR s->info_callback [L1134] cb = s->info_callback [L1142] EXPR s->in_handshake [L1142] s->in_handshake += 1 [L1143] COND FALSE !(tmp___1 & 12288) [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND TRUE s->state == 4368 [L1311] s->shutdown = 0 [L1312] ret = __VERIFIER_nondet_int() [L1313] COND TRUE blastFlag == 0 [L1314] blastFlag = 1 [L1318] COND FALSE !(ret <= 0) [L1323] s->state = 4384 [L1324] s->init_num = 0 [L1325] EXPR s->bbio [L1325] EXPR s->wbio [L1325] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND TRUE s->state == 4384 [L1333] ret = __VERIFIER_nondet_int() [L1334] COND TRUE blastFlag == 1 [L1335] blastFlag = 2 [L1339] COND FALSE !(ret <= 0) [L1344] s->hit [L1344] COND TRUE s->hit [L1345] s->state = 4560 [L1349] s->init_num = 0 [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state [L1183] COND TRUE s->state == 4400 [L1353] EXPR s->s3 [L1353] EXPR (s->s3)->tmp.new_cipher [L1353] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1353] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1356] ret = __VERIFIER_nondet_int() [L1357] COND TRUE blastFlag == 2 [L1358] blastFlag = 3 [L1362] COND FALSE !(ret <= 0) [L1368] s->state = 4416 [L1369] s->init_num = 0 [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 4400) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 4401) [L1189] EXPR s->state [L1189] COND TRUE s->state == 4416 [L1373] ret = __VERIFIER_nondet_int() [L1374] COND TRUE blastFlag == 3 [L1375] blastFlag = 4 [L1379] COND FALSE !(ret <= 0) [L1384] s->state = 4432 [L1385] s->init_num = 0 [L1386] tmp___6 = __VERIFIER_nondet_int() [L1387] COND FALSE !(! tmp___6) [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 4400) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 4401) [L1189] EXPR s->state [L1189] COND FALSE !(s->state == 4416) [L1192] EXPR s->state [L1192] COND FALSE !(s->state == 4417) [L1195] EXPR s->state [L1195] COND FALSE !(s->state == 4432) [L1198] EXPR s->state [L1198] COND FALSE !(s->state == 4433) [L1201] EXPR s->state [L1201] COND TRUE s->state == 4448 [L1412] ret = __VERIFIER_nondet_int() [L1413] COND TRUE blastFlag == 4 [L1668] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 131 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 822717.6ms, OverallIterations: 4, TraceHistogramMax: 5, EmptinessCheckTime: 34.4ms, AutomataDifference: 4641.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 819 SDtfs, 888 SDslu, 949 SDs, 0 SdLazy, 84 SolverSat, 28 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4311.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=628occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 174.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 100 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 125.1ms SsaConstructionTime, 438.4ms SatisfiabilityAnalysisTime, 1740.7ms InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 624 SizeOfPredicates, 0 NumberOfNonLiveVariables, 532 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...