./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/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_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e995adc4290f6ed38266d5ac06bc9f3b7fb296b9c0b399f410984e5db4f4543 ............................................................................................................................................. 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_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/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_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e995adc4290f6ed38266d5ac06bc9f3b7fb296b9c0b399f410984e5db4f4543 .......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:42:52,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:42:52,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:42:52,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:42:52,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:42:52,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:42:52,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:42:52,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:42:52,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:42:52,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:42:52,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:42:52,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:42:52,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:42:52,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:42:52,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:42:52,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:42:52,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:42:52,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:42:52,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:42:52,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:42:52,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:42:52,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:42:52,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:42:52,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:42:52,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:42:52,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:42:52,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:42:52,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:42:52,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:42:52,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:42:52,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:42:52,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:42:52,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:42:52,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:42:52,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:42:52,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:42:52,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:42:52,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:42:52,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:42:52,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:42:52,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:42:52,788 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-24 10:42:52,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:42:52,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:42:52,849 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:42:52,857 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:42:52,857 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:42:52,857 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:42:52,858 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:42:52,858 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:42:52,858 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:42:52,858 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:42:52,860 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:42:52,860 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:42:52,860 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:42:52,861 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:42:52,861 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:42:52,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 10:42:52,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 10:42:52,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:42:52,863 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:42:52,863 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 10:42:52,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:42:52,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:42:52,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:42:52,864 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 10:42:52,865 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 10:42:52,865 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-24 10:42:52,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:42:52,867 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:42:52,867 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:42:52,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:42:52,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:42:52,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:42:52,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:42:52,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:42:52,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:42:52,869 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:42:52,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:42:52,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:42:52,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:42:52,870 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_d204d32b-5b27-46cf-92e9-e137d4101173/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e995adc4290f6ed38266d5ac06bc9f3b7fb296b9c0b399f410984e5db4f4543 [2021-10-24 10:42:53,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:42:53,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:42:53,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:42:53,229 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:42:53,230 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:42:53,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_2.i [2021-10-24 10:42:53,293 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/data/667a5284c/8687ff90af364816a4d46955049d852a/FLAG852fb44e8 [2021-10-24 10:42:54,039 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:42:54,041 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/sv-benchmarks/c/ldv-memsafety/memleaks_test16_2.i [2021-10-24 10:42:54,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/data/667a5284c/8687ff90af364816a4d46955049d852a/FLAG852fb44e8 [2021-10-24 10:42:54,231 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/data/667a5284c/8687ff90af364816a4d46955049d852a [2021-10-24 10:42:54,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:42:54,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:42:54,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:42:54,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:42:54,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:42:54,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:42:54" (1/1) ... [2021-10-24 10:42:54,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4ec8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:42:54, skipping insertion in model container [2021-10-24 10:42:54,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:42:54" (1/1) ... [2021-10-24 10:42:54,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:42:54,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:42:54,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:42:54,941 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 10:42:54,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b337f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:42:54, skipping insertion in model container [2021-10-24 10:42:54,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:42:54,942 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:42:54,946 INFO L168 Benchmark]: Toolchain (without parser) took 708.87 ms. Allocated memory is still 115.3 MB. Free memory was 77.4 MB in the beginning and 87.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:42:54,948 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 115.3 MB. Free memory was 95.3 MB in the beginning and 95.2 MB in the end (delta: 24.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:42:54,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.54 ms. Allocated memory is still 115.3 MB. Free memory was 77.2 MB in the beginning and 87.4 MB in the end (delta: -10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:42:54,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 115.3 MB. Free memory was 95.3 MB in the beginning and 95.2 MB in the end (delta: 24.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 702.54 ms. Allocated memory is still 115.3 MB. Free memory was 77.2 MB in the beginning and 87.4 MB in the end (delta: -10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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 10:42:57,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:42:57,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:42:57,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:42:57,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:42:57,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:42:57,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:42:57,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:42:57,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:42:57,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:42:57,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:42:57,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:42:57,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:42:57,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:42:57,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:42:57,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:42:57,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:42:57,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:42:57,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:42:57,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:42:57,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:42:57,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:42:57,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:42:57,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:42:57,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:42:57,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:42:57,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:42:57,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:42:57,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:42:57,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:42:57,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:42:57,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:42:57,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:42:57,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:42:57,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:42:57,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:42:57,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:42:57,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:42:57,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:42:57,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:42:57,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:42:57,667 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-24 10:42:57,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:42:57,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:42:57,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:42:57,719 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:42:57,719 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:42:57,720 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:42:57,720 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:42:57,720 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:42:57,721 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:42:57,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 10:42:57,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 10:42:57,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:42:57,722 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:42:57,723 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 10:42:57,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:42:57,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:42:57,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:42:57,724 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 10:42:57,724 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 10:42:57,724 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-24 10:42:57,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:42:57,725 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:42:57,725 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:42:57,725 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:42:57,725 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:42:57,726 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:42:57,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:42:57,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:42:57,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:42:57,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:42:57,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:42:57,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:42:57,727 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:42:57,727 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:42:57,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:42:57,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:42:57,728 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_d204d32b-5b27-46cf-92e9-e137d4101173/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e995adc4290f6ed38266d5ac06bc9f3b7fb296b9c0b399f410984e5db4f4543 [2021-10-24 10:42:58,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:42:58,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:42:58,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:42:58,206 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:42:58,208 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:42:58,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_2.i [2021-10-24 10:42:58,285 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/data/e95c6e150/e242bc711600423eb20fb99174657e44/FLAG645337470 [2021-10-24 10:42:59,007 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:42:59,008 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/sv-benchmarks/c/ldv-memsafety/memleaks_test16_2.i [2021-10-24 10:42:59,028 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/data/e95c6e150/e242bc711600423eb20fb99174657e44/FLAG645337470 [2021-10-24 10:42:59,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/data/e95c6e150/e242bc711600423eb20fb99174657e44 [2021-10-24 10:42:59,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:42:59,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:42:59,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:42:59,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:42:59,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:42:59,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:42:59" (1/1) ... [2021-10-24 10:42:59,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5712b670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:42:59, skipping insertion in model container [2021-10-24 10:42:59,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:42:59" (1/1) ... [2021-10-24 10:42:59,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:42:59,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:42:59,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:42:59,855 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:42:59,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:42:59,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:42:59,936 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:42:59,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:43:00,038 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:43:00,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:00 WrapperNode [2021-10-24 10:43:00,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:43:00,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:43:00,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:43:00,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:43:00,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:00" (1/1) ... [2021-10-24 10:43:00,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:00" (1/1) ... [2021-10-24 10:43:00,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:43:00,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:43:00,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:43:00,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:43:00,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:00" (1/1) ... [2021-10-24 10:43:00,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:00" (1/1) ... [2021-10-24 10:43:00,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:00" (1/1) ... [2021-10-24 10:43:00,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:00" (1/1) ... [2021-10-24 10:43:00,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:00" (1/1) ... [2021-10-24 10:43:00,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:00" (1/1) ... [2021-10-24 10:43:00,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:00" (1/1) ... [2021-10-24 10:43:00,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:43:00,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:43:00,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:43:00,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:43:00,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:00" (1/1) ... [2021-10-24 10:43:00,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:43:00,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:43:00,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:43:00,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:43:00,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-24 10:43:00,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:43:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-24 10:43:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:43:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:43:00,558 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:43:00,558 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-24 10:43:00,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:43:00 BoogieIcfgContainer [2021-10-24 10:43:00,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:43:00,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:43:00,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:43:00,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:43:00,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:42:59" (1/3) ... [2021-10-24 10:43:00,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387b9bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:43:00, skipping insertion in model container [2021-10-24 10:43:00,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:00" (2/3) ... [2021-10-24 10:43:00,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387b9bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:43:00, skipping insertion in model container [2021-10-24 10:43:00,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:43:00" (3/3) ... [2021-10-24 10:43:00,584 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test16_2.i [2021-10-24 10:43:00,590 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:43:00,595 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:43:00,645 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:43:00,652 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 10:43:00,652 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:43:00,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 10:43:00,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-24 10:43:00,676 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:43:00,676 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-24 10:43:00,677 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-24 10:43:00,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:43:00,684 INFO L82 PathProgramCache]: Analyzing trace with hash 28702702, now seen corresponding path program 1 times [2021-10-24 10:43:00,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:43:00,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570481857] [2021-10-24 10:43:00,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:43:00,700 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:43:00,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:43:00,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:43:00,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:43:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:43:00,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:43:00,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:43:00,884 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 10:43:00,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:43:00,907 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 10:43:00,908 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:43:00,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570481857] [2021-10-24 10:43:00,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570481857] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:43:00,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:43:00,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:43:00,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897430504] [2021-10-24 10:43:00,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:43:00,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:43:00,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:43:00,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:43:00,935 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 10:43:00,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:43:00,966 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-10-24 10:43:00,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:43:00,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-10-24 10:43:00,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:43:00,978 INFO L225 Difference]: With dead ends: 13 [2021-10-24 10:43:00,978 INFO L226 Difference]: Without dead ends: 8 [2021-10-24 10:43:00,980 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:43:01,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-10-24 10:43:01,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-24 10:43:01,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 10:43:01,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-10-24 10:43:01,024 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 5 [2021-10-24 10:43:01,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:43:01,025 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-10-24 10:43:01,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 10:43:01,025 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-10-24 10:43:01,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-24 10:43:01,026 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:43:01,026 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:43:01,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:43:01,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:43:01,239 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-24 10:43:01,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:43:01,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1804936617, now seen corresponding path program 1 times [2021-10-24 10:43:01,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:43:01,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607252594] [2021-10-24 10:43:01,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:43:01,241 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:43:01,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:43:01,243 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:43:01,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:43:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:43:01,305 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:43:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:43:01,360 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:43:01,360 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:43:01,362 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:43:01,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:43:01,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:43:01,588 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:43:01,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:43:01 BoogieIcfgContainer [2021-10-24 10:43:01,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:43:01,612 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:43:01,612 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:43:01,613 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:43:01,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:43:00" (3/4) ... [2021-10-24 10:43:01,618 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:43:01,618 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:43:01,628 INFO L168 Benchmark]: Toolchain (without parser) took 2368.29 ms. Allocated memory is still 83.9 MB. Free memory was 46.7 MB in the beginning and 39.5 MB in the end (delta: 7.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:01,628 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 83.9 MB. Free memory was 65.1 MB in the beginning and 65.0 MB in the end (delta: 72.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:43:01,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 782.45 ms. Allocated memory is still 83.9 MB. Free memory was 46.5 MB in the beginning and 50.1 MB in the end (delta: -3.6 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:01,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.76 ms. Allocated memory is still 83.9 MB. Free memory was 50.0 MB in the beginning and 47.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:01,632 INFO L168 Benchmark]: Boogie Preprocessor took 27.98 ms. Allocated memory is still 83.9 MB. Free memory was 47.9 MB in the beginning and 46.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:01,634 INFO L168 Benchmark]: RCFGBuilder took 448.80 ms. Allocated memory is still 83.9 MB. Free memory was 46.5 MB in the beginning and 64.0 MB in the end (delta: -17.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:01,637 INFO L168 Benchmark]: TraceAbstraction took 1033.01 ms. Allocated memory is still 83.9 MB. Free memory was 63.7 MB in the beginning and 40.0 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:01,639 INFO L168 Benchmark]: Witness Printer took 6.45 ms. Allocated memory is still 83.9 MB. Free memory was 39.8 MB in the beginning and 39.5 MB in the end (delta: 333.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:01,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 83.9 MB. Free memory was 65.1 MB in the beginning and 65.0 MB in the end (delta: 72.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 782.45 ms. Allocated memory is still 83.9 MB. Free memory was 46.5 MB in the beginning and 50.1 MB in the end (delta: -3.6 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.76 ms. Allocated memory is still 83.9 MB. Free memory was 50.0 MB in the beginning and 47.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.98 ms. Allocated memory is still 83.9 MB. Free memory was 47.9 MB in the beginning and 46.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 448.80 ms. Allocated memory is still 83.9 MB. Free memory was 46.5 MB in the beginning and 64.0 MB in the end (delta: -17.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1033.01 ms. Allocated memory is still 83.9 MB. Free memory was 63.7 MB in the beginning and 40.0 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 6.45 ms. Allocated memory is still 83.9 MB. Free memory was 39.8 MB in the beginning and 39.5 MB in the end (delta: 333.4 kB). Peak memory consumption was 2.1 MB. 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: 771]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 771. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={-2147483648:0}] [L768] int condition = __VERIFIER_nondet_int(); [L761] COND TRUE \read(condition) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] struct A16 *p = (struct A16 *)ldv_malloc(sizeof(struct A16)); [L763] return p; VAL [ldv_global_msg_list={-2147483648:0}] [L769] struct A16 *p = alloc_16(condition); - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 943.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 13.1ms, AutomataDifference: 62.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 5 SDslu, 2 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 25.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.3ms SsaConstructionTime, 51.6ms SatisfiabilityAnalysisTime, 84.6ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 [2021-10-24 10:43:01,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d204d32b-5b27-46cf-92e9-e137d4101173/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...