./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan --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 34250e9d8f469697cb8850c8aa9214fde887cb00 .............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan --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 34250e9d8f469697cb8850c8aa9214fde887cb00 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:36:37,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:36:37,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:36:37,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:36:37,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:36:37,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:36:37,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:36:37,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:36:37,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:36:37,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:36:37,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:36:37,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:36:37,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:36:37,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:36:37,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:36:37,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:36:37,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:36:37,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:36:37,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:36:37,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:36:37,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:36:37,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:36:37,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:36:37,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:36:37,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:36:37,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:36:37,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:36:37,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:36:37,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:36:37,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:36:37,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:36:37,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:36:37,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:36:38,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:36:38,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:36:38,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:36:38,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:36:38,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:36:38,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:36:38,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:36:38,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:36:38,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-11-28 07:36:38,033 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:36:38,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:36:38,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:36:38,034 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:36:38,035 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:36:38,035 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:36:38,036 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:36:38,036 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:36:38,036 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:36:38,037 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:36:38,037 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:36:38,038 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:36:38,038 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:36:38,038 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:36:38,039 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:36:38,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 07:36:38,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 07:36:38,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:36:38,041 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:36:38,041 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 07:36:38,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:36:38,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:36:38,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:36:38,043 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 07:36:38,043 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 07:36:38,044 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 07:36:38,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:36:38,045 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:36:38,045 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:36:38,045 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:36:38,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:36:38,046 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:36:38,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:36:38,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:36:38,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:36:38,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:36:38,048 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:36:38,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:36:38,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:36:38,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:36:38,049 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34250e9d8f469697cb8850c8aa9214fde887cb00 [2020-11-28 07:36:38,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:36:38,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:36:38,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:36:38,343 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:36:38,344 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:36:38,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2020-11-28 07:36:38,452 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/data/1e1792ab2/5f70597624694591af778dac7861bd9f/FLAG9121b82a8 [2020-11-28 07:36:39,042 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:36:39,043 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2020-11-28 07:36:39,080 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/data/1e1792ab2/5f70597624694591af778dac7861bd9f/FLAG9121b82a8 [2020-11-28 07:36:39,355 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/data/1e1792ab2/5f70597624694591af778dac7861bd9f [2020-11-28 07:36:39,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:36:39,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:36:39,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:36:39,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:36:39,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:36:39,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:36:39" (1/1) ... [2020-11-28 07:36:39,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f421ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:39, skipping insertion in model container [2020-11-28 07:36:39,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:36:39" (1/1) ... [2020-11-28 07:36:39,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:36:39,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:36:39,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:36:39,883 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-28 07:36:39,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@71828e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:39, skipping insertion in model container [2020-11-28 07:36:39,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:36:39,884 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-28 07:36:39,887 INFO L168 Benchmark]: Toolchain (without parser) took 526.58 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 44.6 MB in the beginning and 82.1 MB in the end (delta: -37.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:39,889 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 77.6 MB. Free memory was 52.5 MB in the beginning and 52.5 MB in the end (delta: 26.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:36:39,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.86 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 44.3 MB in the beginning and 82.1 MB in the end (delta: -37.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:39,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 77.6 MB. Free memory was 52.5 MB in the beginning and 52.5 MB in the end (delta: 26.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 523.86 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 44.3 MB in the beginning and 82.1 MB in the end (delta: -37.8 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: 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 0.2.0-a4ecdab [2020-11-28 07:36:42,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:36:42,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:36:42,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:36:42,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:36:42,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:36:42,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:36:42,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:36:42,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:36:42,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:36:42,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:36:42,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:36:42,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:36:42,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:36:42,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:36:42,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:36:42,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:36:42,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:36:42,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:36:42,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:36:42,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:36:42,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:36:42,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:36:42,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:36:42,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:36:42,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:36:42,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:36:42,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:36:42,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:36:42,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:36:42,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:36:42,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:36:42,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:36:42,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:36:42,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:36:42,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:36:42,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:36:42,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:36:42,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:36:42,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:36:42,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:36:42,272 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-11-28 07:36:42,317 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:36:42,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:36:42,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:36:42,319 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:36:42,320 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:36:42,320 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:36:42,320 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:36:42,321 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:36:42,321 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:36:42,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 07:36:42,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 07:36:42,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:36:42,324 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:36:42,324 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 07:36:42,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:36:42,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:36:42,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:36:42,325 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 07:36:42,326 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 07:36:42,326 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 07:36:42,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:36:42,327 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:36:42,327 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:36:42,327 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:36:42,327 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:36:42,328 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:36:42,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:36:42,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:36:42,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:36:42,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:36:42,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:36:42,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:36:42,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:36:42,330 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:36:42,331 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:36:42,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:36:42,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:36:42,332 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34250e9d8f469697cb8850c8aa9214fde887cb00 [2020-11-28 07:36:42,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:36:42,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:36:42,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:36:42,766 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:36:42,767 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:36:42,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2020-11-28 07:36:42,845 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/data/cde0460e7/43913102dfca49169e8ad68715c48fda/FLAG2d99e57a0 [2020-11-28 07:36:43,434 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:36:43,436 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2020-11-28 07:36:43,460 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/data/cde0460e7/43913102dfca49169e8ad68715c48fda/FLAG2d99e57a0 [2020-11-28 07:36:43,695 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/data/cde0460e7/43913102dfca49169e8ad68715c48fda [2020-11-28 07:36:43,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:36:43,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:36:43,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:36:43,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:36:43,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:36:43,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:36:43" (1/1) ... [2020-11-28 07:36:43,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a848100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:43, skipping insertion in model container [2020-11-28 07:36:43,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:36:43" (1/1) ... [2020-11-28 07:36:43,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:36:43,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:36:44,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:36:44,288 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-28 07:36:44,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:36:44,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:36:44,351 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:36:44,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:36:44,556 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:36:44,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:44 WrapperNode [2020-11-28 07:36:44,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:36:44,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:36:44,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:36:44,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:36:44,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:44" (1/1) ... [2020-11-28 07:36:44,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:44" (1/1) ... [2020-11-28 07:36:44,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:36:44,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:36:44,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:36:44,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:36:44,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:44" (1/1) ... [2020-11-28 07:36:44,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:44" (1/1) ... [2020-11-28 07:36:44,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:44" (1/1) ... [2020-11-28 07:36:44,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:44" (1/1) ... [2020-11-28 07:36:44,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:44" (1/1) ... [2020-11-28 07:36:44,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:44" (1/1) ... [2020-11-28 07:36:44,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:44" (1/1) ... [2020-11-28 07:36:44,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:36:44,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:36:44,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:36:44,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:36:44,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:36:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 07:36:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:36:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:36:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 07:36:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:36:44,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:36:45,155 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:36:45,159 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 07:36:45,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:36:45 BoogieIcfgContainer [2020-11-28 07:36:45,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:36:45,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:36:45,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:36:45,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:36:45,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:36:43" (1/3) ... [2020-11-28 07:36:45,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145846ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:36:45, skipping insertion in model container [2020-11-28 07:36:45,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:44" (2/3) ... [2020-11-28 07:36:45,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145846ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:36:45, skipping insertion in model container [2020-11-28 07:36:45,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:36:45" (3/3) ... [2020-11-28 07:36:45,175 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2020-11-28 07:36:45,185 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:36:45,190 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-28 07:36:45,201 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-28 07:36:45,231 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:36:45,232 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 07:36:45,232 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:36:45,232 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:36:45,232 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:36:45,232 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:36:45,232 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:36:45,233 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:36:45,245 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-28 07:36:45,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 07:36:45,251 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:45,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:45,252 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 07:36:45,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:45,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965639, now seen corresponding path program 1 times [2020-11-28 07:36:45,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:36:45,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311723675] [2020-11-28 07:36:45,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 07:36:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:45,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 07:36:45,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:36:45,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:45,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:36:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:45,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311723675] [2020-11-28 07:36:45,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:36:45,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-28 07:36:45,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848731745] [2020-11-28 07:36:45,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:36:45,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:36:45,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:36:45,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:36:45,505 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2020-11-28 07:36:45,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:45,598 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-11-28 07:36:45,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:36:45,600 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-28 07:36:45,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:45,608 INFO L225 Difference]: With dead ends: 29 [2020-11-28 07:36:45,608 INFO L226 Difference]: Without dead ends: 25 [2020-11-28 07:36:45,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:36:45,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-28 07:36:45,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2020-11-28 07:36:45,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 07:36:45,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-28 07:36:45,640 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2020-11-28 07:36:45,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:45,640 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-28 07:36:45,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:36:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-28 07:36:45,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 07:36:45,641 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:45,642 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:45,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:36:45,858 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 07:36:45,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:45,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2020-11-28 07:36:45,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:36:45,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435251662] [2020-11-28 07:36:45,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 07:36:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:45,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 07:36:45,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:36:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:45,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:36:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:45,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435251662] [2020-11-28 07:36:45,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:36:45,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-28 07:36:45,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018800889] [2020-11-28 07:36:45,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:36:45,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:36:45,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:36:45,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:36:45,997 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2020-11-28 07:36:46,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:46,047 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-28 07:36:46,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:36:46,048 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-28 07:36:46,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:46,049 INFO L225 Difference]: With dead ends: 16 [2020-11-28 07:36:46,049 INFO L226 Difference]: Without dead ends: 16 [2020-11-28 07:36:46,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:36:46,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-28 07:36:46,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-28 07:36:46,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 07:36:46,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-28 07:36:46,053 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2020-11-28 07:36:46,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:46,053 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-28 07:36:46,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:36:46,053 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-28 07:36:46,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 07:36:46,054 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:46,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:46,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:36:46,266 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 07:36:46,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:46,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812681, now seen corresponding path program 1 times [2020-11-28 07:36:46,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:36:46,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219925345] [2020-11-28 07:36:46,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 07:36:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:46,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:36:46,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:36:46,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:46,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:36:46,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:46,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219925345] [2020-11-28 07:36:46,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:36:46,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:36:46,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994376923] [2020-11-28 07:36:46,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:36:46,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:36:46,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:36:46,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:36:46,328 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2020-11-28 07:36:46,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:46,361 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-11-28 07:36:46,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:36:46,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-28 07:36:46,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:46,363 INFO L225 Difference]: With dead ends: 22 [2020-11-28 07:36:46,363 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 07:36:46,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:36:46,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 07:36:46,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 13. [2020-11-28 07:36:46,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 07:36:46,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-28 07:36:46,366 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-11-28 07:36:46,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:46,366 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-28 07:36:46,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:36:46,366 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-28 07:36:46,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:36:46,380 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:46,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:46,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:36:46,581 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 07:36:46,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:46,581 INFO L82 PathProgramCache]: Analyzing trace with hash 119352011, now seen corresponding path program 1 times [2020-11-28 07:36:46,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:36:46,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156226217] [2020-11-28 07:36:46,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-28 07:36:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:46,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 07:36:46,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:36:46,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:46,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:36:46,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:46,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156226217] [2020-11-28 07:36:46,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:36:46,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2020-11-28 07:36:46,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987973641] [2020-11-28 07:36:46,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 07:36:46,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:36:46,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 07:36:46,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-28 07:36:46,790 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 9 states. [2020-11-28 07:36:47,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:47,057 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-11-28 07:36:47,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 07:36:47,059 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2020-11-28 07:36:47,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:47,060 INFO L225 Difference]: With dead ends: 21 [2020-11-28 07:36:47,060 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 07:36:47,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-11-28 07:36:47,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 07:36:47,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 12. [2020-11-28 07:36:47,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-28 07:36:47,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-28 07:36:47,064 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2020-11-28 07:36:47,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:47,064 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-28 07:36:47,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 07:36:47,064 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-28 07:36:47,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:36:47,065 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:47,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:47,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 07:36:47,266 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 07:36:47,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:47,267 INFO L82 PathProgramCache]: Analyzing trace with hash -595054905, now seen corresponding path program 1 times [2020-11-28 07:36:47,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:36:47,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029212509] [2020-11-28 07:36:47,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-28 07:36:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:47,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 07:36:47,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:36:47,362 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-28 07:36:47,363 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 07:36:47,367 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:36:47,368 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 07:36:47,368 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-28 07:36:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:47,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:36:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:47,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029212509] [2020-11-28 07:36:47,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:36:47,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-28 07:36:47,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030680820] [2020-11-28 07:36:47,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:36:47,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:36:47,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:36:47,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:36:47,413 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2020-11-28 07:36:47,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:47,525 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-11-28 07:36:47,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:36:47,526 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-28 07:36:47,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:47,527 INFO L225 Difference]: With dead ends: 18 [2020-11-28 07:36:47,527 INFO L226 Difference]: Without dead ends: 18 [2020-11-28 07:36:47,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:36:47,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-28 07:36:47,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-28 07:36:47,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-28 07:36:47,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-11-28 07:36:47,530 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2020-11-28 07:36:47,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:47,530 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-11-28 07:36:47,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:36:47,531 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-11-28 07:36:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:36:47,531 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:47,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:47,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 07:36:47,741 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 07:36:47,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:47,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1179952457, now seen corresponding path program 1 times [2020-11-28 07:36:47,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:36:47,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658041354] [2020-11-28 07:36:47,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-28 07:36:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:47,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 07:36:47,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:36:47,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:47,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:36:47,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:47,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658041354] [2020-11-28 07:36:47,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:36:47,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-28 07:36:47,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658138207] [2020-11-28 07:36:47,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:36:47,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:36:47,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:36:47,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:36:47,843 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-11-28 07:36:47,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:47,913 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-28 07:36:47,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:36:47,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-28 07:36:47,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:47,914 INFO L225 Difference]: With dead ends: 14 [2020-11-28 07:36:47,914 INFO L226 Difference]: Without dead ends: 11 [2020-11-28 07:36:47,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:36:47,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-28 07:36:47,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-28 07:36:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 07:36:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2020-11-28 07:36:47,917 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 9 [2020-11-28 07:36:47,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:47,917 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2020-11-28 07:36:47,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:36:47,917 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-11-28 07:36:47,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:36:47,918 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:47,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:48,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-28 07:36:48,129 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 07:36:48,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:48,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1266832815, now seen corresponding path program 1 times [2020-11-28 07:36:48,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:36:48,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865785829] [2020-11-28 07:36:48,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-28 07:36:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:48,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 07:36:48,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:36:48,213 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:36:48,214 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-11-28 07:36:48,214 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 07:36:48,236 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-11-28 07:36:48,240 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 07:36:48,243 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:36:48,243 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:15 [2020-11-28 07:36:48,244 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 07:36:48,255 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 07:36:50,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:50,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:36:56,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:56,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865785829] [2020-11-28 07:36:56,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:36:56,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2020-11-28 07:36:56,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305074881] [2020-11-28 07:36:56,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-28 07:36:56,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:36:56,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-28 07:36:56,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=115, Unknown=4, NotChecked=0, Total=156 [2020-11-28 07:36:56,780 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 13 states. [2020-11-28 07:36:59,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:59,067 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-11-28 07:36:59,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 07:36:59,068 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 10 [2020-11-28 07:36:59,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:59,068 INFO L225 Difference]: With dead ends: 10 [2020-11-28 07:36:59,068 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:36:59,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=64, Invalid=172, Unknown=4, NotChecked=0, Total=240 [2020-11-28 07:36:59,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:36:59,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:36:59,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:36:59,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:36:59,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-28 07:36:59,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:59,069 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:36:59,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-28 07:36:59,070 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:36:59,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:36:59,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-28 07:36:59,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:36:59 BoogieIcfgContainer [2020-11-28 07:36:59,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:36:59,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:36:59,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:36:59,274 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:36:59,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:36:45" (3/4) ... [2020-11-28 07:36:59,277 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:36:59,285 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 07:36:59,287 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 07:36:59,287 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:36:59,320 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_89c25cf1-9910-4d23-ad5f-e44948353229/bin/utaipan/witness.graphml [2020-11-28 07:36:59,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:36:59,322 INFO L168 Benchmark]: Toolchain (without parser) took 15620.51 ms. Allocated memory was 58.7 MB in the beginning and 94.4 MB in the end (delta: 35.7 MB). Free memory was 36.0 MB in the beginning and 47.2 MB in the end (delta: -11.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:59,322 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 58.7 MB. Free memory was 39.7 MB in the beginning and 39.7 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:36:59,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 853.87 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 35.8 MB in the beginning and 42.4 MB in the end (delta: -6.6 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:59,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.58 ms. Allocated memory is still 77.6 MB. Free memory was 42.4 MB in the beginning and 40.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:59,324 INFO L168 Benchmark]: Boogie Preprocessor took 38.82 ms. Allocated memory is still 77.6 MB. Free memory was 40.0 MB in the beginning and 39.1 MB in the end (delta: 972.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:36:59,325 INFO L168 Benchmark]: RCFGBuilder took 475.72 ms. Allocated memory is still 77.6 MB. Free memory was 38.9 MB in the beginning and 44.5 MB in the end (delta: -5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:59,325 INFO L168 Benchmark]: TraceAbstraction took 14108.93 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 44.2 MB in the beginning and 50.1 MB in the end (delta: -5.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:59,326 INFO L168 Benchmark]: Witness Printer took 46.16 ms. Allocated memory is still 94.4 MB. Free memory was 50.1 MB in the beginning and 47.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:59,329 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 58.7 MB. Free memory was 39.7 MB in the beginning and 39.7 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 853.87 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 35.8 MB in the beginning and 42.4 MB in the end (delta: -6.6 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.58 ms. Allocated memory is still 77.6 MB. Free memory was 42.4 MB in the beginning and 40.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.82 ms. Allocated memory is still 77.6 MB. Free memory was 40.0 MB in the beginning and 39.1 MB in the end (delta: 972.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 475.72 ms. Allocated memory is still 77.6 MB. Free memory was 38.9 MB in the beginning and 44.5 MB in the end (delta: -5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14108.93 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 44.2 MB in the beginning and 50.1 MB in the end (delta: -5.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 46.16 ms. Allocated memory is still 94.4 MB. Free memory was 50.1 MB in the beginning and 47.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 764]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 135 SDslu, 88 SDs, 0 SdLazy, 154 SolverSat, 11 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 100 ConstructedInterpolants, 10 QuantifiedInterpolants, 3939 SizeOfPredicates, 24 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 proved your program to be correct! Received shutdown request...