./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer --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 Automizer --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/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer --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 Automizer --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 0.2.0-a4ecdab [2020-11-28 03:14:59,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:14:59,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:14:59,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:14:59,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:14:59,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:14:59,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:14:59,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:14:59,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:14:59,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:14:59,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:14:59,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:14:59,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:14:59,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:14:59,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:14:59,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:14:59,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:14:59,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:14:59,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:14:59,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:14:59,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:14:59,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:14:59,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:14:59,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:14:59,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:14:59,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:14:59,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:14:59,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:14:59,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:14:59,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:14:59,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:14:59,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:14:59,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:14:59,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:14:59,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:14:59,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:14:59,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:14:59,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:14:59,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:14:59,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:14:59,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:14:59,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:14:59,646 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:14:59,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:14:59,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:14:59,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:14:59,652 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:14:59,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:14:59,652 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:14:59,652 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:14:59,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:14:59,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:14:59,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:14:59,654 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:14:59,654 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:14:59,655 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:14:59,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:14:59,655 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:14:59,655 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:14:59,655 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:14:59,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:14:59,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:14:59,656 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:14:59,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:14:59,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:59,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:14:59,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:14:59,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:14:59,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:14:59,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:14:59,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134c0db99ce5251339642354d8ec6411765b7878 [2020-11-28 03:14:59,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:14:59,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:14:59,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:14:59,952 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:14:59,952 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:14:59,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2020-11-28 03:15:00,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/data/92e3be2d9/b88d0b2ca5b743b48fbae519209c8577/FLAGb91fbccf5 [2020-11-28 03:15:00,592 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:00,596 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2020-11-28 03:15:00,620 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/data/92e3be2d9/b88d0b2ca5b743b48fbae519209c8577/FLAGb91fbccf5 [2020-11-28 03:15:00,895 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/data/92e3be2d9/b88d0b2ca5b743b48fbae519209c8577 [2020-11-28 03:15:00,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:00,899 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:15:00,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:00,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:00,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:00,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:00" (1/1) ... [2020-11-28 03:15:00,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c6bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:00, skipping insertion in model container [2020-11-28 03:15:00,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:00" (1/1) ... [2020-11-28 03:15:00,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:00,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:01,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:01,393 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-28 03:15:01,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@595f2c3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01, skipping insertion in model container [2020-11-28 03:15:01,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:01,403 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-28 03:15:01,407 INFO L168 Benchmark]: Toolchain (without parser) took 505.86 ms. Allocated memory is still 88.1 MB. Free memory was 54.7 MB in the beginning and 63.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:01,409 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 88.1 MB. Free memory was 45.3 MB in the beginning and 45.3 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:01,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.40 ms. Allocated memory is still 88.1 MB. Free memory was 54.5 MB in the beginning and 64.0 MB in the end (delta: -9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:01,414 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 88.1 MB. Free memory was 45.3 MB in the beginning and 45.3 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 502.40 ms. Allocated memory is still 88.1 MB. Free memory was 54.5 MB in the beginning and 64.0 MB in the end (delta: -9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 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 0.2.0-a4ecdab [2020-11-28 03:15:03,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:15:03,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:15:03,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:15:03,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:15:03,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:15:03,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:15:03,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:15:03,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:15:04,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:15:04,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:15:04,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:15:04,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:15:04,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:15:04,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:15:04,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:15:04,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:15:04,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:15:04,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:15:04,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:15:04,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:15:04,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:15:04,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:15:04,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:15:04,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:15:04,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:15:04,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:15:04,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:15:04,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:15:04,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:15:04,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:15:04,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:15:04,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:15:04,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:15:04,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:15:04,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:15:04,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:15:04,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:15:04,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:15:04,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:15:04,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:15:04,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-28 03:15:04,121 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:15:04,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:15:04,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:15:04,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:15:04,126 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:15:04,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:15:04,127 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:15:04,127 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:15:04,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:15:04,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:15:04,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:15:04,129 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:15:04,129 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:15:04,130 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:15:04,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:15:04,130 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:15:04,130 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:15:04,131 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:15:04,131 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:15:04,131 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:15:04,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:15:04,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:15:04,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:15:04,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:15:04,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:04,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:15:04,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:15:04,133 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:15:04,147 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:15:04,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:15:04,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:15:04,148 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134c0db99ce5251339642354d8ec6411765b7878 [2020-11-28 03:15:04,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:15:04,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:15:04,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:15:04,582 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:15:04,583 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:15:04,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2020-11-28 03:15:04,663 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/data/be90a1ec2/82697611fb3c437f91fb0e8ea30f71d0/FLAG968a91b68 [2020-11-28 03:15:05,296 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:05,296 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2020-11-28 03:15:05,312 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/data/be90a1ec2/82697611fb3c437f91fb0e8ea30f71d0/FLAG968a91b68 [2020-11-28 03:15:05,614 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/data/be90a1ec2/82697611fb3c437f91fb0e8ea30f71d0 [2020-11-28 03:15:05,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:05,619 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:15:05,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:05,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:05,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:05,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:05" (1/1) ... [2020-11-28 03:15:05,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c26bc28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:05, skipping insertion in model container [2020-11-28 03:15:05,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:05" (1/1) ... [2020-11-28 03:15:05,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:05,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:06,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:06,073 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-28 03:15:06,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:06,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:06,128 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:06,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:06,239 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:06,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:06 WrapperNode [2020-11-28 03:15:06,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:06,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:06,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:06,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:06,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:06" (1/1) ... [2020-11-28 03:15:06,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:06" (1/1) ... [2020-11-28 03:15:06,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:06" (1/1) ... [2020-11-28 03:15:06,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:06" (1/1) ... [2020-11-28 03:15:06,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:06" (1/1) ... [2020-11-28 03:15:06,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:06" (1/1) ... [2020-11-28 03:15:06,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:06" (1/1) ... [2020-11-28 03:15:06,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:06,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:06,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:06,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:06,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:06,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:15:06,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:06,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-28 03:15:06,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 03:15:06,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 03:15:06,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 03:15:06,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 03:15:06,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 03:15:06,410 INFO L138 BoogieDeclarations]: Found implementation of procedure knapsack [2020-11-28 03:15:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:15:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:15:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:15:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:15:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:15:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:15:06,412 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:15:06,412 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:15:06,412 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:15:06,412 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:15:06,412 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:15:06,412 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:15:06,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:15:06,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:15:06,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:15:06,413 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:15:06,413 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:15:06,413 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 03:15:06,414 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 03:15:06,414 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 03:15:06,414 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 03:15:06,414 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 03:15:06,414 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:15:06,415 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:15:06,415 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:15:06,415 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:15:06,415 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:15:06,415 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:15:06,415 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:15:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:15:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:15:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:15:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:15:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:15:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:15:06,417 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:15:06,417 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:15:06,417 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:15:06,417 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:15:06,417 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:15:06,417 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:15:06,418 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:15:06,418 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:15:06,418 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:15:06,418 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:15:06,418 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:15:06,418 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:15:06,419 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:15:06,419 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:15:06,419 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:15:06,419 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:15:06,419 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:15:06,419 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:15:06,420 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:15:06,420 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:15:06,420 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:15:06,420 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:15:06,420 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:15:06,420 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:15:06,421 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:15:06,421 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:15:06,421 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:15:06,421 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:15:06,421 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:15:06,421 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:15:06,422 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:15:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:15:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:15:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:15:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:15:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:15:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:15:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:15:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:15:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:15:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:15:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:15:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:15:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:15:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:15:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:15:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:15:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:15:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:15:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:15:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:15:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:15:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:15:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:15:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:15:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:15:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:15:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:15:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:15:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:15:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:15:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:15:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:15:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:15:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:15:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:15:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:15:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:15:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:15:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:15:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:15:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:15:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:15:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:15:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure knapsack [2020-11-28 03:15:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 03:15:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 03:15:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:15:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:15:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:15:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:15:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-28 03:15:07,463 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:07,464 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-28 03:15:07,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:07 BoogieIcfgContainer [2020-11-28 03:15:07,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:07,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:15:07,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:15:07,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:15:07,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:15:05" (1/3) ... [2020-11-28 03:15:07,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fee6616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:07, skipping insertion in model container [2020-11-28 03:15:07,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:06" (2/3) ... [2020-11-28 03:15:07,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fee6616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:07, skipping insertion in model container [2020-11-28 03:15:07,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:07" (3/3) ... [2020-11-28 03:15:07,473 INFO L111 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2020-11-28 03:15:07,484 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:15:07,488 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 27 error locations. [2020-11-28 03:15:07,499 INFO L253 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2020-11-28 03:15:07,525 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:15:07,525 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:15:07,525 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:15:07,526 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:07,526 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:07,526 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:15:07,526 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:07,526 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:15:07,540 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-11-28 03:15:07,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:15:07,547 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:07,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:07,548 INFO L429 AbstractCegarLoop]: === Iteration 1 === [knapsackErr6REQUIRES_VIOLATION, knapsackErr17REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-11-28 03:15:07,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:07,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1775609137, now seen corresponding path program 1 times [2020-11-28 03:15:07,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:15:07,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307010780] [2020-11-28 03:15:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 03:15:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:15:07,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:08,041 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 18 [2020-11-28 03:15:08,043 INFO L350 Elim1Store]: treesize reduction 93, result has 20.5 percent of original size [2020-11-28 03:15:08,043 INFO L384 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 [2020-11-28 03:15:08,045 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:15:08,073 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:15:08,083 INFO L545 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. [2020-11-28 03:15:08,084 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:35, output treesize:33 [2020-11-28 03:15:08,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:08,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:15:08,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:08,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307010780] [2020-11-28 03:15:08,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:08,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-28 03:15:08,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373558703] [2020-11-28 03:15:08,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:15:08,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:15:08,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:15:08,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:15:08,223 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-11-28 03:15:08,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:08,519 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2020-11-28 03:15:08,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:08,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-28 03:15:08,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:08,530 INFO L225 Difference]: With dead ends: 72 [2020-11-28 03:15:08,530 INFO L226 Difference]: Without dead ends: 69 [2020-11-28 03:15:08,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:15:08,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-28 03:15:08,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-11-28 03:15:08,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-28 03:15:08,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2020-11-28 03:15:08,579 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 11 [2020-11-28 03:15:08,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:08,579 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2020-11-28 03:15:08,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:15:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2020-11-28 03:15:08,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:15:08,587 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:08,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:08,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:15:08,801 INFO L429 AbstractCegarLoop]: === Iteration 2 === [knapsackErr6REQUIRES_VIOLATION, knapsackErr17REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-11-28 03:15:08,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:08,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1775609136, now seen corresponding path program 1 times [2020-11-28 03:15:08,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:15:08,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407468000] [2020-11-28 03:15:08,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 03:15:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:08,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 03:15:08,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:09,019 INFO L441 ElimStorePlain]: Different costs {0=[|v_#length_35|], 4=[|v_#valid_50|]} [2020-11-28 03:15:09,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 03:15:09,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 03:15:09,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 03:15:09,106 INFO L350 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2020-11-28 03:15:09,107 INFO L384 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 [2020-11-28 03:15:09,107 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:15:09,142 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:15:09,165 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:15:09,166 INFO L384 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 [2020-11-28 03:15:09,168 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 03:15:09,206 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:15:09,210 INFO L545 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. [2020-11-28 03:15:09,210 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:41, output treesize:39 [2020-11-28 03:15:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:09,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:15:09,463 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-28 03:15:09,464 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-28 03:15:09,465 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:15:09,507 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:15:09,530 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:15:09,531 INFO L384 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 [2020-11-28 03:15:09,534 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 03:15:09,586 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:15:09,588 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 03:15:09,593 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2020-11-28 03:15:09,593 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:47, output treesize:11 [2020-11-28 03:15:09,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:09,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407468000] [2020-11-28 03:15:09,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:09,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-28 03:15:09,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302852570] [2020-11-28 03:15:09,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:15:09,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:15:09,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:15:09,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:15:09,676 INFO L87 Difference]: Start difference. First operand 69 states and 76 transitions. Second operand 8 states. [2020-11-28 03:15:10,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:10,945 INFO L93 Difference]: Finished difference Result 133 states and 147 transitions. [2020-11-28 03:15:10,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:15:10,947 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-28 03:15:10,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:10,950 INFO L225 Difference]: With dead ends: 133 [2020-11-28 03:15:10,950 INFO L226 Difference]: Without dead ends: 133 [2020-11-28 03:15:10,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:15:10,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-11-28 03:15:10,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 75. [2020-11-28 03:15:10,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-11-28 03:15:10,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2020-11-28 03:15:10,965 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 11 [2020-11-28 03:15:10,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:10,966 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2020-11-28 03:15:10,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:15:10,966 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2020-11-28 03:15:10,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:15:10,967 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:10,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:11,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 03:15:11,186 INFO L429 AbstractCegarLoop]: === Iteration 3 === [knapsackErr6REQUIRES_VIOLATION, knapsackErr17REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-11-28 03:15:11,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:11,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1773762094, now seen corresponding path program 1 times [2020-11-28 03:15:11,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:15:11,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372534089] [2020-11-28 03:15:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 03:15:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:11,357 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:11,400 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:11,439 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-28 03:15:11,439 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:15:11,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 03:15:11,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:11 BoogieIcfgContainer [2020-11-28 03:15:11,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:15:11,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:11,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:11,663 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:11,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:07" (3/4) ... [2020-11-28 03:15:11,666 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:15:11,705 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_12b14a91-7afe-45da-97f2-05bcadea05b4/bin/uautomizer/witness.graphml [2020-11-28 03:15:11,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:11,707 INFO L168 Benchmark]: Toolchain (without parser) took 6087.27 ms. Allocated memory was 67.1 MB in the beginning and 100.7 MB in the end (delta: 33.6 MB). Free memory was 49.6 MB in the beginning and 68.0 MB in the end (delta: -18.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:11,708 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 67.1 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:11,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.88 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 36.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:11,709 INFO L168 Benchmark]: Boogie Preprocessor took 97.21 ms. Allocated memory is still 67.1 MB. Free memory was 36.5 MB in the beginning and 33.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:11,710 INFO L168 Benchmark]: RCFGBuilder took 1125.02 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 33.5 MB in the beginning and 39.2 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:11,711 INFO L168 Benchmark]: TraceAbstraction took 4195.65 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 38.6 MB in the beginning and 70.0 MB in the end (delta: -31.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:11,711 INFO L168 Benchmark]: Witness Printer took 42.33 ms. Allocated memory is still 100.7 MB. Free memory was 70.0 MB in the beginning and 68.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:11,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 67.1 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 620.88 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 36.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.21 ms. Allocated memory is still 67.1 MB. Free memory was 36.5 MB in the beginning and 33.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1125.02 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 33.5 MB in the beginning and 39.2 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4195.65 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 38.6 MB in the beginning and 70.0 MB in the end (delta: -31.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 42.33 ms. Allocated memory is still 100.7 MB. Free memory was 70.0 MB in the beginning and 68.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 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) VAL [M=0, N=1073741824] [L532] COND TRUE M < 1 [L533] M = 1 VAL [M=1, N=1073741824] [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; VAL [__builtin_alloca (M * sizeof(int))={15:0}, __builtin_alloca (M * sizeof(int))={-2147483645:0}, __builtin_alloca (N * sizeof(int))={5:0}, __builtin_alloca (N * sizeof(int))={7:0}, best={15:0}, cost={-2147483645:0}, i=0, M=1, N=1073741824, size={5:0}, val={7:0}] [L540] COND TRUE i < N VAL [__builtin_alloca (M * sizeof(int))={15:0}, __builtin_alloca (M * sizeof(int))={-2147483645:0}, __builtin_alloca (N * sizeof(int))={5:0}, __builtin_alloca (N * sizeof(int))={7:0}, best={15:0}, cost={-2147483645:0}, i=0, M=1, N=1073741824, size={5:0}, val={7:0}] [L542] size[i] = __VERIFIER_nondet_int() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 94 locations, 27 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 154 SDtfs, 152 SDslu, 309 SDs, 0 SdLazy, 140 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 58 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 4 QuantifiedInterpolants, 2540 SizeOfPredicates, 14 NumberOfNonLiveVariables, 120 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...