./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/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/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/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 0.1.25-f470102 [2019-12-07 15:51:08,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:51:08,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:51:08,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:51:08,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:51:08,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:51:08,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:51:08,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:51:08,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:51:08,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:51:08,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:51:08,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:51:08,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:51:08,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:51:08,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:51:08,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:51:08,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:51:08,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:51:08,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:51:08,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:51:08,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:51:08,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:51:08,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:51:08,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:51:08,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:51:08,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:51:08,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:51:08,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:51:08,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:51:08,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:51:08,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:51:08,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:51:08,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:51:08,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:51:08,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:51:08,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:51:08,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:51:08,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:51:08,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:51:08,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:51:08,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:51:08,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-12-07 15:51:08,412 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:51:08,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:51:08,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:51:08,413 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:51:08,413 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:51:08,414 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:51:08,414 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 15:51:08,414 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:51:08,414 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:51:08,414 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 15:51:08,415 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 15:51:08,415 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:51:08,415 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 15:51:08,415 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 15:51:08,415 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 15:51:08,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:51:08,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:51:08,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:51:08,417 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:51:08,417 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:51:08,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:51:08,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:51:08,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:51:08,417 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 15:51:08,418 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 15:51:08,418 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 15:51:08,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:51:08,418 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:51:08,418 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:51:08,418 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:51:08,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:51:08,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:51:08,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:51:08,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:51:08,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:51:08,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:51:08,420 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 15:51:08,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:51:08,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:51:08,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:51:08,420 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_a9bd12e6-e88d-468d-b16f-25e2f2566e60/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 [2019-12-07 15:51:08,534 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:51:08,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:51:08,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:51:08,548 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:51:08,548 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:51:08,549 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2019-12-07 15:51:08,594 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/data/60a3ba1c1/896784f5ea294558b8d4756bd24e74f7/FLAG4823a8b14 [2019-12-07 15:51:08,955 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:51:08,956 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2019-12-07 15:51:08,964 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/data/60a3ba1c1/896784f5ea294558b8d4756bd24e74f7/FLAG4823a8b14 [2019-12-07 15:51:09,359 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/data/60a3ba1c1/896784f5ea294558b8d4756bd24e74f7 [2019-12-07 15:51:09,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:51:09,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:51:09,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:51:09,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:51:09,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:51:09,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:51:09" (1/1) ... [2019-12-07 15:51:09,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1d81d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:09, skipping insertion in model container [2019-12-07 15:51:09,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:51:09" (1/1) ... [2019-12-07 15:51:09,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:51:09,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:51:09,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:51:09,630 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 15:51:09,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@726c5ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:09, skipping insertion in model container [2019-12-07 15:51:09,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:51:09,631 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 15:51:09,632 INFO L168 Benchmark]: Toolchain (without parser) took 268.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:51:09,633 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:51:09,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:51:09,634 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 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 266.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 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 0.1.25-f470102 [2019-12-07 15:51:10,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:51:10,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:51:10,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:51:10,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:51:10,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:51:10,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:51:10,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:51:10,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:51:10,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:51:10,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:51:10,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:51:10,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:51:10,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:51:10,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:51:10,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:51:10,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:51:10,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:51:10,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:51:10,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:51:10,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:51:10,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:51:10,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:51:10,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:51:10,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:51:10,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:51:10,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:51:10,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:51:10,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:51:10,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:51:10,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:51:10,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:51:10,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:51:10,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:51:10,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:51:10,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:51:10,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:51:10,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:51:10,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:51:10,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:51:10,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:51:10,784 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-12-07 15:51:10,794 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:51:10,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:51:10,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:51:10,795 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:51:10,795 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:51:10,795 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:51:10,796 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:51:10,796 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:51:10,796 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:51:10,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:51:10,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:51:10,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:51:10,797 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:51:10,797 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:51:10,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:51:10,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:51:10,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:51:10,798 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 15:51:10,798 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 15:51:10,798 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 15:51:10,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:51:10,798 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:51:10,798 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:51:10,798 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:51:10,798 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:51:10,799 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:51:10,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:51:10,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:51:10,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:51:10,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:51:10,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:51:10,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:51:10,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:51:10,800 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 15:51:10,800 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:51:10,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:51:10,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:51:10,800 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_a9bd12e6-e88d-468d-b16f-25e2f2566e60/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 [2019-12-07 15:51:10,966 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:51:10,974 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:51:10,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:51:10,978 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:51:10,978 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:51:10,979 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2019-12-07 15:51:11,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/data/a914bd55f/ab35545f2bb44cfcb9991d258d779bb7/FLAGa48cd03da [2019-12-07 15:51:11,393 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:51:11,393 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2019-12-07 15:51:11,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/data/a914bd55f/ab35545f2bb44cfcb9991d258d779bb7/FLAGa48cd03da [2019-12-07 15:51:11,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/data/a914bd55f/ab35545f2bb44cfcb9991d258d779bb7 [2019-12-07 15:51:11,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:51:11,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:51:11,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:51:11,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:51:11,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:51:11,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:51:11" (1/1) ... [2019-12-07 15:51:11,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60cb4662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11, skipping insertion in model container [2019-12-07 15:51:11,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:51:11" (1/1) ... [2019-12-07 15:51:11,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:51:11,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:51:11,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:51:11,658 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 15:51:11,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:51:11,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:51:11,689 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:51:11,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:51:11,750 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:51:11,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11 WrapperNode [2019-12-07 15:51:11,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:51:11,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:51:11,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:51:11,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:51:11,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11" (1/1) ... [2019-12-07 15:51:11,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11" (1/1) ... [2019-12-07 15:51:11,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:51:11,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:51:11,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:51:11,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:51:11,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11" (1/1) ... [2019-12-07 15:51:11,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11" (1/1) ... [2019-12-07 15:51:11,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11" (1/1) ... [2019-12-07 15:51:11,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11" (1/1) ... [2019-12-07 15:51:11,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11" (1/1) ... [2019-12-07 15:51:11,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11" (1/1) ... [2019-12-07 15:51:11,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11" (1/1) ... [2019-12-07 15:51:11,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:51:11,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:51:11,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:51:11,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:51:11,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/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 15:51:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:51:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 15:51:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:51:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:51:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:51:11,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:51:12,250 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:51:12,250 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 15:51:12,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:51:12 BoogieIcfgContainer [2019-12-07 15:51:12,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:51:12,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:51:12,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:51:12,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:51:12,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:51:11" (1/3) ... [2019-12-07 15:51:12,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4a8da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:51:12, skipping insertion in model container [2019-12-07 15:51:12,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:51:11" (2/3) ... [2019-12-07 15:51:12,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4a8da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:51:12, skipping insertion in model container [2019-12-07 15:51:12,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:51:12" (3/3) ... [2019-12-07 15:51:12,256 INFO L109 eAbstractionObserver]: Analyzing ICFG lis_unsafe.i [2019-12-07 15:51:12,262 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:51:12,267 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2019-12-07 15:51:12,274 INFO L249 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2019-12-07 15:51:12,286 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:51:12,286 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 15:51:12,287 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:51:12,287 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:51:12,287 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:51:12,287 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:51:12,287 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:51:12,287 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:51:12,298 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2019-12-07 15:51:12,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 15:51:12,302 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:51:12,303 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:51:12,303 INFO L410 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]=== [2019-12-07 15:51:12,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:51:12,307 INFO L82 PathProgramCache]: Analyzing trace with hash 889508873, now seen corresponding path program 1 times [2019-12-07 15:51:12,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:51:12,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692678489] [2019-12-07 15:51:12,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/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 15:51:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:51:12,367 INFO L264 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 15:51:12,372 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:51:12,421 INFO L343 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-12-07 15:51:12,422 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2019-12-07 15:51:12,422 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:51:12,426 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:51:12,427 INFO L534 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. [2019-12-07 15:51:12,427 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2019-12-07 15:51:12,438 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 15:51:12,438 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:51:12,442 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 15:51:12,443 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692678489] [2019-12-07 15:51:12,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:51:12,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:51:12,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454136387] [2019-12-07 15:51:12,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:51:12,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:51:12,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:51:12,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:51:12,458 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 3 states. [2019-12-07 15:51:12,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:51:12,623 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2019-12-07 15:51:12,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:51:12,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 15:51:12,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:51:12,631 INFO L225 Difference]: With dead ends: 63 [2019-12-07 15:51:12,631 INFO L226 Difference]: Without dead ends: 61 [2019-12-07 15:51:12,632 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:51:12,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-12-07 15:51:12,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-12-07 15:51:12,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-12-07 15:51:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2019-12-07 15:51:12,656 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 6 [2019-12-07 15:51:12,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:51:12,656 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2019-12-07 15:51:12,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:51:12,656 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2019-12-07 15:51:12,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 15:51:12,657 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:51:12,657 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:51:12,857 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:51:12,858 INFO L410 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]=== [2019-12-07 15:51:12,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:51:12,859 INFO L82 PathProgramCache]: Analyzing trace with hash 889508874, now seen corresponding path program 1 times [2019-12-07 15:51:12,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:51:12,860 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692033338] [2019-12-07 15:51:12,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/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 15:51:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:51:12,915 INFO L264 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 15:51:12,916 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:51:12,928 INFO L430 ElimStorePlain]: Different costs {0=[|v_#length_27|], 1=[|v_#valid_39|]} [2019-12-07 15:51:12,933 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:51:12,934 INFO L377 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 [2019-12-07 15:51:12,935 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:51:12,946 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:51:12,953 INFO L377 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 [2019-12-07 15:51:12,954 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 15:51:12,965 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:51:12,966 INFO L534 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. [2019-12-07 15:51:12,966 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:21 [2019-12-07 15:51:12,985 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 15:51:12,985 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:51:13,067 INFO L430 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-12-07 15:51:13,075 INFO L377 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 [2019-12-07 15:51:13,075 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:51:13,083 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:51:13,085 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 15:51:13,085 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 15:51:13,093 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:51:13,093 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:51:13,094 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:25, output treesize:5 [2019-12-07 15:51:13,111 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 15:51:13,111 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692033338] [2019-12-07 15:51:13,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:51:13,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 15:51:13,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544625050] [2019-12-07 15:51:13,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 15:51:13,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:51:13,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:51:13,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:51:13,113 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand 6 states. [2019-12-07 15:51:14,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:51:14,033 INFO L93 Difference]: Finished difference Result 156 states and 176 transitions. [2019-12-07 15:51:14,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:51:14,033 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-12-07 15:51:14,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:51:14,036 INFO L225 Difference]: With dead ends: 156 [2019-12-07 15:51:14,036 INFO L226 Difference]: Without dead ends: 156 [2019-12-07 15:51:14,037 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:51:14,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-12-07 15:51:14,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 73. [2019-12-07 15:51:14,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-12-07 15:51:14,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2019-12-07 15:51:14,044 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 89 transitions. Word has length 6 [2019-12-07 15:51:14,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:51:14,045 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 89 transitions. [2019-12-07 15:51:14,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 15:51:14,045 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2019-12-07 15:51:14,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 15:51:14,045 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:51:14,045 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:51:14,246 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:51:14,246 INFO L410 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]=== [2019-12-07 15:51:14,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:51:14,247 INFO L82 PathProgramCache]: Analyzing trace with hash 889568456, now seen corresponding path program 1 times [2019-12-07 15:51:14,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:51:14,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379785491] [2019-12-07 15:51:14,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/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 15:51:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:51:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:51:14,327 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 15:51:14,327 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:51:14,528 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:51:14,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:51:14 BoogieIcfgContainer [2019-12-07 15:51:14,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:51:14,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:51:14,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:51:14,557 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:51:14,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:51:12" (3/4) ... [2019-12-07 15:51:14,560 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 15:51:14,592 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a9bd12e6-e88d-468d-b16f-25e2f2566e60/bin/utaipan/witness.graphml [2019-12-07 15:51:14,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:51:14,593 INFO L168 Benchmark]: Toolchain (without parser) took 3180.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 945.7 MB in the beginning and 910.0 MB in the end (delta: 35.7 MB). Peak memory consumption was 143.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:51:14,593 INFO L168 Benchmark]: CDTParser took 0.18 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 15:51:14,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -135.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:51:14,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:51:14,594 INFO L168 Benchmark]: Boogie Preprocessor took 23.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:51:14,595 INFO L168 Benchmark]: RCFGBuilder took 441.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:51:14,595 INFO L168 Benchmark]: TraceAbstraction took 2304.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 910.0 MB in the end (delta: 129.9 MB). Peak memory consumption was 129.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:51:14,595 INFO L168 Benchmark]: Witness Printer took 35.61 ms. Allocated memory is still 1.1 GB. Free memory is still 910.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:51:14,597 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 337.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -135.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 441.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2304.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 910.0 MB in the end (delta: 129.9 MB). Peak memory consumption was 129.9 MB. Max. memory is 11.5 GB. * Witness Printer took 35.61 ms. Allocated memory is still 1.1 GB. Free memory is still 910.0 MB. There was no memory consumed. Max. memory is 11.5 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. Result: UNSAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 108 SDtfs, 183 SDslu, 188 SDs, 0 SdLazy, 192 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 83 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 2 QuantifiedInterpolants, 670 SizeOfPredicates, 11 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 13 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...