./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/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 134c0db99ce5251339642354d8ec6411765b7878 ........................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/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 134c0db99ce5251339642354d8ec6411765b7878 ............................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 10:16:54,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:16:54,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:16:54,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:16:54,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:16:54,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:16:54,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:16:54,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:16:54,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:16:54,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:16:54,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:16:54,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:16:54,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:16:54,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:16:54,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:16:54,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:16:54,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:16:54,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:16:54,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:16:54,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:16:54,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:16:54,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:16:54,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:16:54,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:16:54,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:16:54,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:16:54,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:16:54,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:16:54,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:16:54,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:16:54,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:16:54,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:16:54,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:16:54,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:16:54,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:16:54,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:16:54,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:16:54,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:16:54,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:16:54,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:16:54,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:16:54,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-12-07 10:16:54,246 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:16:54,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:16:54,247 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:16:54,247 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:16:54,247 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:16:54,247 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:16:54,247 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 10:16:54,247 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:16:54,248 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:16:54,248 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 10:16:54,248 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 10:16:54,248 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:16:54,248 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 10:16:54,248 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 10:16:54,248 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 10:16:54,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:16:54,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:16:54,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:16:54,249 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:16:54,249 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:16:54,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:16:54,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:16:54,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:16:54,250 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 10:16:54,250 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 10:16:54,250 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 10:16:54,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:16:54,250 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:16:54,250 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:16:54,250 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:16:54,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:16:54,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:16:54,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:16:54,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:16:54,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:16:54,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:16:54,251 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 10:16:54,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:16:54,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:16:54,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:16:54,252 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c061d86a-19a4-4c8a-9f19-36bf799add50/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 -> 134c0db99ce5251339642354d8ec6411765b7878 [2019-12-07 10:16:54,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:16:54,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:16:54,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:16:54,362 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:16:54,362 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:16:54,363 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2019-12-07 10:16:54,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/data/499b10002/ad6fbeba6545478984b217ef6ce42f9e/FLAG5f97e91c7 [2019-12-07 10:16:54,846 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:16:54,846 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2019-12-07 10:16:54,855 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/data/499b10002/ad6fbeba6545478984b217ef6ce42f9e/FLAG5f97e91c7 [2019-12-07 10:16:54,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/data/499b10002/ad6fbeba6545478984b217ef6ce42f9e [2019-12-07 10:16:54,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:16:54,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:16:54,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:16:54,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:16:54,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:16:54,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:16:54" (1/1) ... [2019-12-07 10:16:54,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67672e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:54, skipping insertion in model container [2019-12-07 10:16:54,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:16:54" (1/1) ... [2019-12-07 10:16:54,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:16:54,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:16:55,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:16:55,109 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) [2019-12-07 10:16:55,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@394efb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:55, skipping insertion in model container [2019-12-07 10:16:55,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:16:55,110 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 10:16:55,111 INFO L168 Benchmark]: Toolchain (without parser) took 244.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:16:55,112 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 962.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:16:55,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:16:55,113 INFO L335 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 1.0 GB. Free memory is still 962.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 535]: 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 0.1.25-f470102 [2019-12-07 10:16:56,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:16:56,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:16:56,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:16:56,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:16:56,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:16:56,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:16:56,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:16:56,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:16:56,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:16:56,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:16:56,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:16:56,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:16:56,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:16:56,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:16:56,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:16:56,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:16:56,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:16:56,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:16:56,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:16:56,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:16:56,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:16:56,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:16:56,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:16:56,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:16:56,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:16:56,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:16:56,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:16:56,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:16:56,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:16:56,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:16:56,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:16:56,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:16:56,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:16:56,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:16:56,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:16:56,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:16:56,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:16:56,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:16:56,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:16:56,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:16:56,274 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-12-07 10:16:56,284 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:16:56,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:16:56,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:16:56,285 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:16:56,285 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:16:56,285 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:16:56,286 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:16:56,286 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:16:56,286 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:16:56,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:16:56,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:16:56,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:16:56,287 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:16:56,287 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:16:56,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:16:56,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:16:56,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:16:56,287 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 10:16:56,287 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 10:16:56,288 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 10:16:56,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:16:56,288 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:16:56,288 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 10:16:56,288 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 10:16:56,288 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:16:56,288 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:16:56,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:16:56,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:16:56,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:16:56,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:16:56,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:16:56,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:16:56,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:16:56,289 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 10:16:56,290 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 10:16:56,290 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:16:56,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:16:56,290 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_c061d86a-19a4-4c8a-9f19-36bf799add50/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 -> 134c0db99ce5251339642354d8ec6411765b7878 [2019-12-07 10:16:56,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:16:56,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:16:56,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:16:56,477 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:16:56,477 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:16:56,478 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2019-12-07 10:16:56,516 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/data/1833ccfaa/9f2223bb07b748ec85b91538232c28b5/FLAGb1416033b [2019-12-07 10:16:56,966 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:16:56,966 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2019-12-07 10:16:56,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/data/1833ccfaa/9f2223bb07b748ec85b91538232c28b5/FLAGb1416033b [2019-12-07 10:16:56,985 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/data/1833ccfaa/9f2223bb07b748ec85b91538232c28b5 [2019-12-07 10:16:56,987 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:16:56,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:16:56,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:16:56,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:16:56,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:16:56,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:16:56" (1/1) ... [2019-12-07 10:16:56,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d666b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:56, skipping insertion in model container [2019-12-07 10:16:56,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:16:56" (1/1) ... [2019-12-07 10:16:56,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:16:57,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:16:57,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:16:57,249 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 10:16:57,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:16:57,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:16:57,284 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:16:57,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:16:57,347 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:16:57,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:57 WrapperNode [2019-12-07 10:16:57,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:16:57,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:16:57,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:16:57,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:16:57,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:57" (1/1) ... [2019-12-07 10:16:57,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:57" (1/1) ... [2019-12-07 10:16:57,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:16:57,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:16:57,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:16:57,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:16:57,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:57" (1/1) ... [2019-12-07 10:16:57,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:57" (1/1) ... [2019-12-07 10:16:57,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:57" (1/1) ... [2019-12-07 10:16:57,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:57" (1/1) ... [2019-12-07 10:16:57,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:57" (1/1) ... [2019-12-07 10:16:57,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:57" (1/1) ... [2019-12-07 10:16:57,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:57" (1/1) ... [2019-12-07 10:16:57,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:16:57,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:16:57,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:16:57,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:16:57,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/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 [2019-12-07 10:16:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 10:16:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:16:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:16:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 10:16:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:16:57,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:16:57,917 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:16:57,917 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 10:16:57,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:16:57 BoogieIcfgContainer [2019-12-07 10:16:57,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:16:57,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:16:57,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:16:57,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:16:57,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:16:56" (1/3) ... [2019-12-07 10:16:57,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d90e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:16:57, skipping insertion in model container [2019-12-07 10:16:57,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:16:57" (2/3) ... [2019-12-07 10:16:57,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d90e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:16:57, skipping insertion in model container [2019-12-07 10:16:57,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:16:57" (3/3) ... [2019-12-07 10:16:57,925 INFO L109 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2019-12-07 10:16:57,933 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:16:57,940 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 27 error locations. [2019-12-07 10:16:57,950 INFO L249 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2019-12-07 10:16:57,963 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:16:57,963 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 10:16:57,963 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:16:57,963 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:16:57,963 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:16:57,963 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:16:57,963 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:16:57,964 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:16:57,973 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2019-12-07 10:16:57,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 10:16:57,978 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:16:57,978 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:16:57,978 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, 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.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2019-12-07 10:16:57,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:16:57,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1805029096, now seen corresponding path program 1 times [2019-12-07 10:16:57,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:16:57,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771930616] [2019-12-07 10:16:57,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/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 [2019-12-07 10:16:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:16:58,056 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 10:16:58,059 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:16:58,183 INFO L343 Elim1Store]: treesize reduction 93, result has 20.5 percent of original size [2019-12-07 10:16:58,184 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 47 [2019-12-07 10:16:58,185 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:16:58,205 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:16:58,207 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-12-07 10:16:58,207 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:35, output treesize:33 [2019-12-07 10:16:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:16:58,240 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:16:58,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:16:58,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771930616] [2019-12-07 10:16:58,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:16:58,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 10:16:58,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686947159] [2019-12-07 10:16:58,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:16:58,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:16:58,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:16:58,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:16:58,270 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2019-12-07 10:16:58,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:16:58,487 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2019-12-07 10:16:58,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:16:58,489 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 10:16:58,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:16:58,496 INFO L225 Difference]: With dead ends: 64 [2019-12-07 10:16:58,496 INFO L226 Difference]: Without dead ends: 62 [2019-12-07 10:16:58,497 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:16:58,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-12-07 10:16:58,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-12-07 10:16:58,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-12-07 10:16:58,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2019-12-07 10:16:58,523 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 7 [2019-12-07 10:16:58,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:16:58,523 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2019-12-07 10:16:58,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:16:58,523 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2019-12-07 10:16:58,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 10:16:58,524 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:16:58,524 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:16:58,724 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 10:16:58,725 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, 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.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2019-12-07 10:16:58,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:16:58,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1805029097, now seen corresponding path program 1 times [2019-12-07 10:16:58,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:16:58,727 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367655987] [2019-12-07 10:16:58,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/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 [2019-12-07 10:16:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:16:58,792 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 10:16:58,793 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:16:58,811 INFO L430 ElimStorePlain]: Different costs {0=[|v_#length_33|], 4=[|v_#valid_44|]} [2019-12-07 10:16:58,818 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:16:58,819 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:16:58,820 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 10:16:58,857 INFO L343 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2019-12-07 10:16:58,858 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 21 [2019-12-07 10:16:58,858 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:16:58,881 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:16:58,897 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:16:58,897 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-12-07 10:16:58,898 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 10:16:58,922 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:16:58,923 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-12-07 10:16:58,924 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:41, output treesize:39 [2019-12-07 10:16:58,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:16:58,960 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:16:59,073 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:16:59,074 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2019-12-07 10:16:59,074 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:16:59,090 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:16:59,092 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:16:59,093 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 10:16:59,093 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 10:16:59,123 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:16:59,124 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 10:16:59,125 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-12-07 10:16:59,126 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:47, output treesize:11 [2019-12-07 10:16:59,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:16:59,174 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367655987] [2019-12-07 10:16:59,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:16:59,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 10:16:59,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305832077] [2019-12-07 10:16:59,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 10:16:59,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:16:59,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 10:16:59,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 10:16:59,176 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand 8 states. [2019-12-07 10:17:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:17:00,846 INFO L93 Difference]: Finished difference Result 237 states and 260 transitions. [2019-12-07 10:17:00,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 10:17:00,847 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-12-07 10:17:00,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:17:00,849 INFO L225 Difference]: With dead ends: 237 [2019-12-07 10:17:00,849 INFO L226 Difference]: Without dead ends: 237 [2019-12-07 10:17:00,850 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2019-12-07 10:17:00,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2019-12-07 10:17:00,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 68. [2019-12-07 10:17:00,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-12-07 10:17:00,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2019-12-07 10:17:00,859 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 7 [2019-12-07 10:17:00,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:17:00,859 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2019-12-07 10:17:00,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 10:17:00,859 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2019-12-07 10:17:00,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 10:17:00,860 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:17:00,860 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:17:01,060 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 10:17:01,061 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, 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.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2019-12-07 10:17:01,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:17:01,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1806876139, now seen corresponding path program 1 times [2019-12-07 10:17:01,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:17:01,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982672578] [2019-12-07 10:17:01,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/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 [2019-12-07 10:17:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:17:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:17:01,151 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 10:17:01,152 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:17:01,352 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 10:17:01,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:17:01 BoogieIcfgContainer [2019-12-07 10:17:01,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:17:01,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:17:01,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:17:01,386 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:17:01,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:16:57" (3/4) ... [2019-12-07 10:17:01,389 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:17:01,423 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c061d86a-19a4-4c8a-9f19-36bf799add50/bin/utaipan/witness.graphml [2019-12-07 10:17:01,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:17:01,425 INFO L168 Benchmark]: Toolchain (without parser) took 4436.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 948.4 MB in the beginning and 875.3 MB in the end (delta: 73.1 MB). Peak memory consumption was 202.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:17:01,425 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:17:01,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:17:01,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:17:01,426 INFO L168 Benchmark]: Boogie Preprocessor took 24.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:17:01,427 INFO L168 Benchmark]: RCFGBuilder took 511.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:17:01,427 INFO L168 Benchmark]: TraceAbstraction took 3465.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 875.3 MB in the end (delta: 177.7 MB). Peak memory consumption was 177.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:17:01,427 INFO L168 Benchmark]: Witness Printer took 37.91 ms. Allocated memory is still 1.2 GB. Free memory is still 875.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:17:01,430 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 359.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 511.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3465.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 875.3 MB in the end (delta: 177.7 MB). Peak memory consumption was 177.7 MB. Max. memory is 11.5 GB. * Witness Printer took 37.91 ms. Allocated memory is still 1.2 GB. Free memory is still 875.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 542]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND FALSE !(N < 1) [L532] COND TRUE M < 1 [L533] M = 1 [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; [L540] COND TRUE i < N [L542] size[i] = __VERIFIER_nondet_int() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 27 error locations. Result: UNSAFE, OverallTime: 3.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 132 SDtfs, 387 SDslu, 288 SDs, 0 SdLazy, 250 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=2, 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, 169 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 4 QuantifiedInterpolants, 1452 SizeOfPredicates, 14 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...