./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/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 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 ............................................................................................................................................ 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_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/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 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 ............................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:21:06,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:21:06,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:21:06,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:21:06,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:21:06,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:21:06,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:21:06,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:21:06,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:21:06,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:21:06,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:21:06,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:21:06,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:21:06,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:21:06,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:21:06,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:21:06,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:21:06,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:21:06,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:21:06,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:21:06,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:21:06,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:21:06,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:21:06,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:21:06,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:21:06,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:21:06,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:21:06,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:21:06,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:21:06,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:21:06,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:21:06,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:21:06,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:21:06,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:21:06,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:21:06,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:21:06,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:21:06,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:21:06,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:21:06,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:21:06,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:21:06,080 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 18:21:06,096 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:21:06,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:21:06,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:21:06,097 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:21:06,097 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:21:06,097 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:21:06,098 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 18:21:06,098 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:21:06,098 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:21:06,098 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 18:21:06,098 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 18:21:06,098 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:21:06,098 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 18:21:06,098 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 18:21:06,098 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 18:21:06,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 18:21:06,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 18:21:06,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:21:06,099 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:21:06,099 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 18:21:06,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:21:06,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:21:06,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:21:06,100 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 18:21:06,100 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 18:21:06,100 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 18:21:06,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:21:06,100 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:21:06,100 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:21:06,100 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:21:06,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:21:06,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:21:06,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:21:06,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:21:06,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:21:06,101 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 18:21:06,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 18:21:06,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:21:06,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:21:06,101 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_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 [2020-12-09 18:21:06,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:21:06,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:21:06,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:21:06,297 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:21:06,298 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:21:06,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-12-09 18:21:06,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/data/7f3f38ec1/90cd41f865b940b29c7aa816d99eac7a/FLAG4cd166ebc [2020-12-09 18:21:06,749 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:21:06,749 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-12-09 18:21:06,759 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/data/7f3f38ec1/90cd41f865b940b29c7aa816d99eac7a/FLAG4cd166ebc [2020-12-09 18:21:06,768 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/data/7f3f38ec1/90cd41f865b940b29c7aa816d99eac7a [2020-12-09 18:21:06,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:21:06,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:21:06,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:21:06,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:21:06,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:21:06,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:21:06" (1/1) ... [2020-12-09 18:21:06,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1861e7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:06, skipping insertion in model container [2020-12-09 18:21:06,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:21:06" (1/1) ... [2020-12-09 18:21:06,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:21:06,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:21:06,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:21:06,998 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) [2020-12-09 18:21:06,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@639a02bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:06, skipping insertion in model container [2020-12-09 18:21:06,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:21:06,999 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 18:21:07,000 INFO L168 Benchmark]: Toolchain (without parser) took 228.02 ms. Allocated memory is still 94.4 MB. Free memory was 71.7 MB in the beginning and 61.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:07,001 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 67.1 MB. Free memory is still 42.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:21:07,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.46 ms. Allocated memory is still 94.4 MB. Free memory was 71.4 MB in the beginning and 61.0 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:07,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 67.1 MB. Free memory is still 42.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 226.46 ms. Allocated memory is still 94.4 MB. Free memory was 71.4 MB in the beginning and 61.0 MB in the end (delta: 10.3 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: 515]: 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 0.2.0-7b2dab5 [2020-12-09 18:21:08,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:21:08,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:21:08,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:21:08,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:21:08,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:21:08,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:21:08,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:21:08,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:21:08,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:21:08,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:21:08,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:21:08,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:21:08,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:21:08,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:21:08,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:21:08,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:21:08,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:21:08,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:21:08,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:21:08,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:21:08,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:21:08,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:21:08,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:21:08,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:21:08,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:21:08,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:21:08,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:21:08,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:21:08,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:21:08,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:21:08,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:21:08,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:21:08,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:21:08,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:21:08,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:21:08,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:21:08,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:21:08,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:21:08,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:21:08,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:21:08,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-12-09 18:21:08,351 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:21:08,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:21:08,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:21:08,352 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:21:08,352 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:21:08,352 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:21:08,352 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:21:08,353 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:21:08,353 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:21:08,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 18:21:08,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 18:21:08,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:21:08,354 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:21:08,354 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 18:21:08,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:21:08,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:21:08,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:21:08,355 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 18:21:08,355 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 18:21:08,355 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 18:21:08,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:21:08,356 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:21:08,356 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 18:21:08,356 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 18:21:08,356 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:21:08,357 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:21:08,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:21:08,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 18:21:08,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:21:08,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:21:08,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:21:08,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:21:08,358 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 18:21:08,358 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 18:21:08,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:21:08,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:21:08,359 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_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 [2020-12-09 18:21:08,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:21:08,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:21:08,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:21:08,624 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:21:08,624 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:21:08,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-12-09 18:21:08,668 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/data/b2ef42e7f/a62484ad359844a39c7c5ac0a689f846/FLAGb4093b1e6 [2020-12-09 18:21:09,100 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:21:09,101 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-12-09 18:21:09,111 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/data/b2ef42e7f/a62484ad359844a39c7c5ac0a689f846/FLAGb4093b1e6 [2020-12-09 18:21:09,121 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/data/b2ef42e7f/a62484ad359844a39c7c5ac0a689f846 [2020-12-09 18:21:09,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:21:09,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:21:09,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:21:09,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:21:09,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:21:09,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:21:09" (1/1) ... [2020-12-09 18:21:09,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@febc4ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09, skipping insertion in model container [2020-12-09 18:21:09,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:21:09" (1/1) ... [2020-12-09 18:21:09,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:21:09,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:21:09,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:21:09,370 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-09 18:21:09,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:21:09,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:21:09,401 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:21:09,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:21:09,464 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:21:09,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09 WrapperNode [2020-12-09 18:21:09,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:21:09,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:21:09,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:21:09,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:21:09,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09" (1/1) ... [2020-12-09 18:21:09,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09" (1/1) ... [2020-12-09 18:21:09,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:21:09,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:21:09,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:21:09,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:21:09,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09" (1/1) ... [2020-12-09 18:21:09,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09" (1/1) ... [2020-12-09 18:21:09,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09" (1/1) ... [2020-12-09 18:21:09,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09" (1/1) ... [2020-12-09 18:21:09,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09" (1/1) ... [2020-12-09 18:21:09,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09" (1/1) ... [2020-12-09 18:21:09,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09" (1/1) ... [2020-12-09 18:21:09,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:21:09,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:21:09,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:21:09,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:21:09,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/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 [2020-12-09 18:21:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 18:21:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 18:21:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 18:21:09,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 18:21:09,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:21:09,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:21:10,076 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:21:10,076 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-09 18:21:10,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:21:10 BoogieIcfgContainer [2020-12-09 18:21:10,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:21:10,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:21:10,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:21:10,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:21:10,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:21:09" (1/3) ... [2020-12-09 18:21:10,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1965658f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:21:10, skipping insertion in model container [2020-12-09 18:21:10,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:09" (2/3) ... [2020-12-09 18:21:10,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1965658f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:21:10, skipping insertion in model container [2020-12-09 18:21:10,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:21:10" (3/3) ... [2020-12-09 18:21:10,084 INFO L111 eAbstractionObserver]: Analyzing ICFG lis_unsafe.i [2020-12-09 18:21:10,094 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:21:10,096 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2020-12-09 18:21:10,104 INFO L253 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2020-12-09 18:21:10,117 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:21:10,118 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 18:21:10,118 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:21:10,118 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:21:10,118 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:21:10,118 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:21:10,118 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:21:10,118 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:21:10,128 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-12-09 18:21:10,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 18:21:10,131 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:21:10,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 18:21:10,132 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 18:21:10,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:21:10,136 INFO L82 PathProgramCache]: Analyzing trace with hash 889508873, now seen corresponding path program 1 times [2020-12-09 18:21:10,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:21:10,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259421105] [2020-12-09 18:21:10,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/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 [2020-12-09 18:21:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:21:10,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 18:21:10,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:21:10,269 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-12-09 18:21:10,270 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2020-12-09 18:21:10,273 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 18:21:10,279 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:21:10,285 INFO L547 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. [2020-12-09 18:21:10,285 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:19 [2020-12-09 18:21:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:21:10,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:21:10,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259421105] [2020-12-09 18:21:10,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:21:10,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 18:21:10,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406911812] [2020-12-09 18:21:10,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 18:21:10,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:21:10,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 18:21:10,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 18:21:10,326 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 3 states. [2020-12-09 18:21:10,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:21:10,516 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2020-12-09 18:21:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 18:21:10,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 18:21:10,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:21:10,523 INFO L225 Difference]: With dead ends: 63 [2020-12-09 18:21:10,523 INFO L226 Difference]: Without dead ends: 61 [2020-12-09 18:21:10,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 18:21:10,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-12-09 18:21:10,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-12-09 18:21:10,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-12-09 18:21:10,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2020-12-09 18:21:10,546 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 6 [2020-12-09 18:21:10,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:21:10,547 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2020-12-09 18:21:10,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 18:21:10,547 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2020-12-09 18:21:10,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 18:21:10,547 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:21:10,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 18:21:10,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 18:21:10,749 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 18:21:10,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:21:10,751 INFO L82 PathProgramCache]: Analyzing trace with hash 889508874, now seen corresponding path program 1 times [2020-12-09 18:21:10,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:21:10,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872819552] [2020-12-09 18:21:10,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/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 [2020-12-09 18:21:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:21:10,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-09 18:21:10,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:21:10,880 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_26|], 1=[|v_#valid_38|]} [2020-12-09 18:21:10,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 18:21:10,885 INFO L382 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 0 case distinctions, treesize of input 9 treesize of output 11 [2020-12-09 18:21:10,886 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 18:21:10,896 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:21:10,901 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-12-09 18:21:10,902 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 18:21:10,911 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:21:10,913 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 18:21:10,913 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:23 [2020-12-09 18:21:10,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:21:10,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:21:10,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872819552] [2020-12-09 18:21:10,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:21:10,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 18:21:10,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071752919] [2020-12-09 18:21:10,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 18:21:10,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:21:10,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 18:21:10,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 18:21:10,939 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand 4 states. [2020-12-09 18:21:11,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:21:11,219 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2020-12-09 18:21:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 18:21:11,220 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-09 18:21:11,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:21:11,221 INFO L225 Difference]: With dead ends: 126 [2020-12-09 18:21:11,221 INFO L226 Difference]: Without dead ends: 126 [2020-12-09 18:21:11,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 18:21:11,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-12-09 18:21:11,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 64. [2020-12-09 18:21:11,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-12-09 18:21:11,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2020-12-09 18:21:11,228 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 6 [2020-12-09 18:21:11,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:21:11,228 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2020-12-09 18:21:11,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 18:21:11,228 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2020-12-09 18:21:11,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 18:21:11,229 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:21:11,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 18:21:11,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 18:21:11,431 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 18:21:11,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:21:11,433 INFO L82 PathProgramCache]: Analyzing trace with hash 889568456, now seen corresponding path program 1 times [2020-12-09 18:21:11,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:21:11,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217606955] [2020-12-09 18:21:11,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/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 [2020-12-09 18:21:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 18:21:11,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 18:21:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 18:21:11,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 18:21:11,588 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 18:21:11,588 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 18:21:11,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 18:21:11,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:21:11 BoogieIcfgContainer [2020-12-09 18:21:11,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 18:21:11,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 18:21:11,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 18:21:11,819 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 18:21:11,820 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:21:10" (3/4) ... [2020-12-09 18:21:11,824 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 18:21:11,860 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_89ce4c42-13aa-432e-9d9e-2ba6fa63301f/bin/utaipan/witness.graphml [2020-12-09 18:21:11,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 18:21:11,861 INFO L168 Benchmark]: Toolchain (without parser) took 2737.65 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 44.8 MB in the beginning and 32.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:11,862 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 62.9 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:21:11,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.52 ms. Allocated memory is still 62.9 MB. Free memory was 44.6 MB in the beginning and 30.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:11,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.56 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 30.4 MB in the beginning and 60.9 MB in the end (delta: -30.5 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:11,863 INFO L168 Benchmark]: Boogie Preprocessor took 23.28 ms. Allocated memory is still 77.6 MB. Free memory was 60.9 MB in the beginning and 59.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:21:11,863 INFO L168 Benchmark]: RCFGBuilder took 552.91 ms. Allocated memory is still 77.6 MB. Free memory was 59.5 MB in the beginning and 52.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:11,864 INFO L168 Benchmark]: TraceAbstraction took 1737.89 ms. Allocated memory is still 77.6 MB. Free memory was 52.0 MB in the beginning and 34.0 MB in the end (delta: 18.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:11,864 INFO L168 Benchmark]: Witness Printer took 42.38 ms. Allocated memory is still 77.6 MB. Free memory was 34.0 MB in the beginning and 32.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:21:11,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 62.9 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.52 ms. Allocated memory is still 62.9 MB. Free memory was 44.6 MB in the beginning and 30.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.56 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 30.4 MB in the beginning and 60.9 MB in the end (delta: -30.5 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.28 ms. Allocated memory is still 77.6 MB. Free memory was 60.9 MB in the beginning and 59.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 552.91 ms. Allocated memory is still 77.6 MB. Free memory was 59.5 MB in the beginning and 52.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1737.89 ms. Allocated memory is still 77.6 MB. Free memory was 52.0 MB in the beginning and 34.0 MB in the end (delta: 18.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * Witness Printer took 42.38 ms. Allocated memory is still 77.6 MB. Free memory was 34.0 MB in the beginning and 32.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 518]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L531] int *a; [L532] int N = __VERIFIER_nondet_int(); [L533] COND FALSE !(N < 1) [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) malloc(sizeof(int) * N) [L516] prev = (int*) malloc(sizeof(int) * N) [L517] i = 0 [L517] COND TRUE i < N [L518] best[i] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 29 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 107 SDtfs, 129 SDslu, 100 SDs, 0 SdLazy, 89 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=0, 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, 2 MinimizatonAttempts, 62 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 4 QuantifiedInterpolants, 460 SizeOfPredicates, 8 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 14 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 proved your program to be incorrect! Received shutdown request...