./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/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/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/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 0.1.25-f470102 [2019-12-07 16:14:22,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:14:22,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:14:22,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:14:22,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:14:22,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:14:22,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:14:22,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:14:22,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:14:22,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:14:22,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:14:22,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:14:22,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:14:22,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:14:22,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:14:22,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:14:22,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:14:22,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:14:22,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:14:22,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:14:22,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:14:22,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:14:22,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:14:22,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:14:22,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:14:22,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:14:22,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:14:22,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:14:22,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:14:22,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:14:22,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:14:22,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:14:22,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:14:22,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:14:22,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:14:22,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:14:22,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:14:22,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:14:22,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:14:22,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:14:22,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:14:22,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 16:14:22,614 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:14:22,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:14:22,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:14:22,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:14:22,615 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:14:22,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:14:22,615 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:14:22,615 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:14:22,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:14:22,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:14:22,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:14:22,616 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 16:14:22,616 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 16:14:22,616 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 16:14:22,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:14:22,616 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:14:22,617 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:14:22,617 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:14:22,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:14:22,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:14:22,617 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:14:22,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:14:22,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:14:22,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:14:22,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:14:22,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:14:22,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:14:22,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:14:22,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ee835689-fafd-4ae7-ae8d-139f45011222/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 [2019-12-07 16:14:22,714 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:14:22,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:14:22,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:14:22,728 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:14:22,728 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:14:22,729 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2019-12-07 16:14:22,771 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/data/470b191fd/cae68b20cf1d4fe89b0bff9ff3f854e6/FLAG0b48fdbec [2019-12-07 16:14:23,209 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:14:23,210 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2019-12-07 16:14:23,218 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/data/470b191fd/cae68b20cf1d4fe89b0bff9ff3f854e6/FLAG0b48fdbec [2019-12-07 16:14:23,227 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/data/470b191fd/cae68b20cf1d4fe89b0bff9ff3f854e6 [2019-12-07 16:14:23,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:14:23,230 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 16:14:23,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:14:23,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:14:23,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:14:23,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:14:23" (1/1) ... [2019-12-07 16:14:23,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f8d2916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:23, skipping insertion in model container [2019-12-07 16:14:23,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:14:23" (1/1) ... [2019-12-07 16:14:23,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:14:23,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:14:23,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:14:23,483 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 16:14:23,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@9641dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:23, skipping insertion in model container [2019-12-07 16:14:23,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:14:23,484 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-12-07 16:14:23,486 INFO L168 Benchmark]: Toolchain (without parser) took 255.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -153.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:23,486 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:14:23,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:23,488 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 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 535]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 16:14:24,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:14:24,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:14:24,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:14:24,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:14:24,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:14:24,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:14:24,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:14:24,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:14:24,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:14:24,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:14:24,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:14:24,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:14:24,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:14:24,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:14:24,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:14:24,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:14:24,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:14:24,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:14:24,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:14:24,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:14:24,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:14:24,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:14:24,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:14:24,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:14:24,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:14:24,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:14:24,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:14:24,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:14:24,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:14:24,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:14:24,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:14:24,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:14:24,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:14:24,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:14:24,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:14:24,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:14:24,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:14:24,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:14:24,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:14:24,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:14:24,629 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-12-07 16:14:24,641 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:14:24,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:14:24,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:14:24,643 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:14:24,643 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:14:24,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:14:24,643 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:14:24,644 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:14:24,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:14:24,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:14:24,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:14:24,644 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 16:14:24,644 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 16:14:24,645 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 16:14:24,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:14:24,645 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:14:24,645 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:14:24,645 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:14:24,646 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:14:24,646 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:14:24,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:14:24,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:14:24,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:14:24,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:14:24,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:14:24,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:14:24,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:14:24,647 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 16:14:24,648 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:14:24,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:14:24,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:14:24,648 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_ee835689-fafd-4ae7-ae8d-139f45011222/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 [2019-12-07 16:14:24,814 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:14:24,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:14:24,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:14:24,828 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:14:24,829 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:14:24,829 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2019-12-07 16:14:24,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/data/14de00cf4/7d20925a4ff043a3b24f35fd7353f2c7/FLAG4a5ed42ec [2019-12-07 16:14:25,238 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:14:25,239 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2019-12-07 16:14:25,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/data/14de00cf4/7d20925a4ff043a3b24f35fd7353f2c7/FLAG4a5ed42ec [2019-12-07 16:14:25,257 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/data/14de00cf4/7d20925a4ff043a3b24f35fd7353f2c7 [2019-12-07 16:14:25,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:14:25,260 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 16:14:25,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:14:25,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:14:25,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:14:25,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:14:25" (1/1) ... [2019-12-07 16:14:25,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d666b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:25, skipping insertion in model container [2019-12-07 16:14:25,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:14:25" (1/1) ... [2019-12-07 16:14:25,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:14:25,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:14:25,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:14:25,514 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 16:14:25,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:14:25,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:14:25,545 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:14:25,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:14:25,602 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:14:25,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:25 WrapperNode [2019-12-07 16:14:25,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:14:25,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:14:25,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:14:25,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:14:25,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:25" (1/1) ... [2019-12-07 16:14:25,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:25" (1/1) ... [2019-12-07 16:14:25,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:25" (1/1) ... [2019-12-07 16:14:25,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:25" (1/1) ... [2019-12-07 16:14:25,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:25" (1/1) ... [2019-12-07 16:14:25,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:25" (1/1) ... [2019-12-07 16:14:25,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:25" (1/1) ... [2019-12-07 16:14:25,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:14:25,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:14:25,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:14:25,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:14:25,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/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 [2019-12-07 16:14:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 16:14:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:14:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 16:14:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 16:14:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 16:14:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 16:14:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 16:14:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 16:14:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure knapsack [2019-12-07 16:14:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 16:14:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 16:14:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 16:14:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 16:14:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 16:14:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 16:14:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 16:14:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 16:14:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 16:14:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 16:14:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 16:14:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 16:14:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 16:14:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 16:14:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 16:14:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 16:14:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 16:14:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 16:14:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 16:14:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 16:14:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 16:14:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 16:14:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 16:14:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 16:14:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 16:14:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 16:14:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 16:14:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 16:14:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 16:14:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 16:14:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 16:14:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 16:14:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 16:14:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 16:14:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 16:14:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 16:14:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 16:14:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 16:14:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 16:14:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 16:14:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 16:14:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 16:14:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 16:14:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 16:14:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 16:14:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 16:14:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 16:14:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 16:14:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 16:14:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 16:14:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 16:14:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 16:14:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 16:14:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 16:14:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 16:14:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 16:14:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 16:14:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 16:14:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 16:14:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 16:14:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 16:14:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 16:14:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 16:14:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 16:14:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 16:14:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 16:14:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 16:14:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 16:14:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 16:14:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 16:14:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 16:14:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure knapsack [2019-12-07 16:14:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 16:14:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 16:14:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 16:14:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:14:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:14:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 16:14:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:14:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 16:14:26,219 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:14:26,220 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 16:14:26,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:26 BoogieIcfgContainer [2019-12-07 16:14:26,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:14:26,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:14:26,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:14:26,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:14:26,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:14:25" (1/3) ... [2019-12-07 16:14:26,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785d5baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:14:26, skipping insertion in model container [2019-12-07 16:14:26,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:25" (2/3) ... [2019-12-07 16:14:26,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785d5baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:14:26, skipping insertion in model container [2019-12-07 16:14:26,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:26" (3/3) ... [2019-12-07 16:14:26,225 INFO L109 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2019-12-07 16:14:26,232 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:14:26,237 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 27 error locations. [2019-12-07 16:14:26,244 INFO L249 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2019-12-07 16:14:26,257 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:14:26,257 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 16:14:26,257 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:14:26,257 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:14:26,257 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:14:26,257 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:14:26,257 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:14:26,257 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:14:26,267 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2019-12-07 16:14:26,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 16:14:26,273 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:14:26,274 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:14:26,274 INFO L410 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]=== [2019-12-07 16:14:26,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:14:26,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1775609137, now seen corresponding path program 1 times [2019-12-07 16:14:26,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:14:26,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842243292] [2019-12-07 16:14:26,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/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 [2019-12-07 16:14:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:14:26,395 INFO L264 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:14:26,399 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:14:26,516 INFO L343 Elim1Store]: treesize reduction 93, result has 20.5 percent of original size [2019-12-07 16:14:26,517 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 47 [2019-12-07 16:14:26,518 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:14:26,536 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:14:26,537 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-12-07 16:14:26,538 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:35, output treesize:33 [2019-12-07 16:14:26,569 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 16:14:26,569 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:14:26,586 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 16:14:26,587 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842243292] [2019-12-07 16:14:26,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:14:26,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 16:14:26,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063668359] [2019-12-07 16:14:26,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:14:26,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:14:26,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:14:26,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:14:26,608 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2019-12-07 16:14:26,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:14:26,830 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2019-12-07 16:14:26,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:14:26,831 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 16:14:26,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:14:26,837 INFO L225 Difference]: With dead ends: 72 [2019-12-07 16:14:26,837 INFO L226 Difference]: Without dead ends: 69 [2019-12-07 16:14:26,839 INFO L630 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 [2019-12-07 16:14:26,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-12-07 16:14:26,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2019-12-07 16:14:26,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-12-07 16:14:26,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2019-12-07 16:14:26,864 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 11 [2019-12-07 16:14:26,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:14:26,865 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2019-12-07 16:14:26,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:14:26,865 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2019-12-07 16:14:26,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 16:14:26,865 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:14:26,865 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:14:27,066 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:14:27,067 INFO L410 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]=== [2019-12-07 16:14:27,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:14:27,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1775609136, now seen corresponding path program 1 times [2019-12-07 16:14:27,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:14:27,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548599790] [2019-12-07 16:14:27,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/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 [2019-12-07 16:14:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:14:27,176 INFO L264 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 16:14:27,177 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:14:27,194 INFO L430 ElimStorePlain]: Different costs {0=[|v_#length_35|], 4=[|v_#valid_50|]} [2019-12-07 16:14:27,200 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 16:14:27,201 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 16:14:27,202 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 16:14:27,236 INFO L343 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2019-12-07 16:14:27,236 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 21 [2019-12-07 16:14:27,236 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:14:27,257 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:14:27,272 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:14:27,272 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-12-07 16:14:27,273 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 16:14:27,294 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:14:27,295 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-12-07 16:14:27,295 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:41, output treesize:39 [2019-12-07 16:14:27,332 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 16:14:27,332 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:14:27,450 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:14:27,450 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2019-12-07 16:14:27,451 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:14:27,465 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:14:27,467 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 16:14:27,468 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 16:14:27,468 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 16:14:27,496 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:14:27,497 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:14:27,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:14:27,500 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-12-07 16:14:27,500 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:47, output treesize:11 [2019-12-07 16:14:27,550 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 16:14:27,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548599790] [2019-12-07 16:14:27,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:14:27,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 16:14:27,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823506305] [2019-12-07 16:14:27,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 16:14:27,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:14:27,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 16:14:27,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 16:14:27,552 INFO L87 Difference]: Start difference. First operand 69 states and 76 transitions. Second operand 8 states. [2019-12-07 16:14:28,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:14:28,481 INFO L93 Difference]: Finished difference Result 133 states and 147 transitions. [2019-12-07 16:14:28,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 16:14:28,482 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-12-07 16:14:28,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:14:28,485 INFO L225 Difference]: With dead ends: 133 [2019-12-07 16:14:28,486 INFO L226 Difference]: Without dead ends: 133 [2019-12-07 16:14:28,486 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2019-12-07 16:14:28,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-12-07 16:14:28,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 75. [2019-12-07 16:14:28,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-12-07 16:14:28,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2019-12-07 16:14:28,499 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 11 [2019-12-07 16:14:28,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:14:28,499 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2019-12-07 16:14:28,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 16:14:28,499 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2019-12-07 16:14:28,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 16:14:28,500 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:14:28,500 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:14:28,701 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 16:14:28,701 INFO L410 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]=== [2019-12-07 16:14:28,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:14:28,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1773762094, now seen corresponding path program 1 times [2019-12-07 16:14:28,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:14:28,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635028278] [2019-12-07 16:14:28,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/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 [2019-12-07 16:14:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:14:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:14:28,844 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 16:14:28,844 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:14:29,045 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 16:14:29,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:14:29 BoogieIcfgContainer [2019-12-07 16:14:29,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:14:29,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:14:29,078 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:14:29,078 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:14:29,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:26" (3/4) ... [2019-12-07 16:14:29,081 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 16:14:29,114 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ee835689-fafd-4ae7-ae8d-139f45011222/bin/uautomizer/witness.graphml [2019-12-07 16:14:29,115 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:14:29,116 INFO L168 Benchmark]: Toolchain (without parser) took 3855.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 947.0 MB in the beginning and 833.9 MB in the end (delta: 113.1 MB). Peak memory consumption was 260.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:29,116 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 16:14:29,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -175.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:29,117 INFO L168 Benchmark]: Boogie Preprocessor took 46.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:29,117 INFO L168 Benchmark]: RCFGBuilder took 571.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:29,118 INFO L168 Benchmark]: TraceAbstraction took 2856.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 833.9 MB in the end (delta: 215.4 MB). Peak memory consumption was 215.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:29,118 INFO L168 Benchmark]: Witness Printer took 36.82 ms. Allocated memory is still 1.2 GB. Free memory is still 833.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:14:29,120 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 341.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -175.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 571.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2856.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 833.9 MB in the end (delta: 215.4 MB). Peak memory consumption was 215.4 MB. Max. memory is 11.5 GB. * Witness Printer took 36.82 ms. Allocated memory is still 1.2 GB. Free memory is still 833.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 542]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND FALSE !(N < 1) 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))={7:0}, __builtin_alloca (M * sizeof(int))={-2147483648:0}, __builtin_alloca (N * sizeof(int))={3:0}, __builtin_alloca (N * sizeof(int))={-1073741824:0}, best={7:0}, cost={-2147483648:0}, i=0, M=1, N=1073741824, size={3:0}, val={-1073741824:0}] [L540] COND TRUE i < N VAL [__builtin_alloca (M * sizeof(int))={7:0}, __builtin_alloca (M * sizeof(int))={-2147483648:0}, __builtin_alloca (N * sizeof(int))={3:0}, __builtin_alloca (N * sizeof(int))={-1073741824:0}, best={7:0}, cost={-2147483648:0}, i=0, M=1, N=1073741824, size={3:0}, val={-1073741824:0}] [L542] size[i] = __VERIFIER_nondet_int() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 94 locations, 27 error locations. Result: UNSAFE, OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 154 SDtfs, 152 SDslu, 309 SDs, 0 SdLazy, 140 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s 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, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 4 QuantifiedInterpolants, 2460 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...