./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-2.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_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3baf3e1382b3477cfa26255004191fb506be280 ........................................................................................................................................................................................................................................................................................................................................ 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_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3baf3e1382b3477cfa26255004191fb506be280 ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:57:31,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:57:31,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:57:31,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:57:31,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:57:31,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:57:31,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:57:31,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:57:31,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:57:31,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:57:31,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:57:31,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:57:31,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:57:31,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:57:31,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:57:31,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:57:31,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:57:31,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:57:31,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:57:31,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:57:31,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:57:31,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:57:31,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:57:31,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:57:31,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:57:31,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:57:31,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:57:31,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:57:31,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:57:31,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:57:31,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:57:31,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:57:31,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:57:31,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:57:31,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:57:31,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:57:31,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:57:31,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:57:31,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:57:31,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:57:31,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:57:31,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-11-22 12:57:31,697 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:57:31,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:57:31,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:57:31,699 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:57:31,700 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:57:31,700 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:57:31,700 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:57:31,701 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:57:31,701 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:57:31,701 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:57:31,702 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:57:31,703 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:57:31,703 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:57:31,703 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:57:31,704 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:57:31,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 12:57:31,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 12:57:31,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:57:31,705 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:57:31,706 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 12:57:31,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:57:31,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:57:31,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:57:31,707 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 12:57:31,707 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 12:57:31,707 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-22 12:57:31,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:57:31,708 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:57:31,708 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:57:31,708 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:57:31,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:57:31,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:57:31,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:57:31,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:57:31,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:57:31,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:57:31,710 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:57:31,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:57:31,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:57:31,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:57:31,711 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3baf3e1382b3477cfa26255004191fb506be280 [2020-11-22 12:57:32,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:57:32,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:57:32,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:57:32,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:57:32,068 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:57:32,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/../../sv-benchmarks/c/memsafety/test-0158-2.i [2020-11-22 12:57:32,188 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/data/21c56f917/bee08f2caf1a45f6b07eb3781f541136/FLAG0822e9ea1 [2020-11-22 12:57:32,780 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:57:32,781 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/sv-benchmarks/c/memsafety/test-0158-2.i [2020-11-22 12:57:32,794 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/data/21c56f917/bee08f2caf1a45f6b07eb3781f541136/FLAG0822e9ea1 [2020-11-22 12:57:33,062 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/data/21c56f917/bee08f2caf1a45f6b07eb3781f541136 [2020-11-22 12:57:33,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:57:33,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:57:33,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:57:33,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:57:33,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:57:33,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:57:33" (1/1) ... [2020-11-22 12:57:33,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f2610f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33, skipping insertion in model container [2020-11-22 12:57:33,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:57:33" (1/1) ... [2020-11-22 12:57:33,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:57:33,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:57:33,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:57:33,466 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:57:33,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:57:33,577 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:57:33,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33 WrapperNode [2020-11-22 12:57:33,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:57:33,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:57:33,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:57:33,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:57:33,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33" (1/1) ... [2020-11-22 12:57:33,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33" (1/1) ... [2020-11-22 12:57:33,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:57:33,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:57:33,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:57:33,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:57:33,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33" (1/1) ... [2020-11-22 12:57:33,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33" (1/1) ... [2020-11-22 12:57:33,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33" (1/1) ... [2020-11-22 12:57:33,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33" (1/1) ... [2020-11-22 12:57:33,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33" (1/1) ... [2020-11-22 12:57:33,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33" (1/1) ... [2020-11-22 12:57:33,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33" (1/1) ... [2020-11-22 12:57:33,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:57:33,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:57:33,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:57:33,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:57:33,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:57:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 12:57:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-22 12:57:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-22 12:57:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:57:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:57:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:57:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:57:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:57:34,142 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:57:34,142 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-22 12:57:34,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:57:34 BoogieIcfgContainer [2020-11-22 12:57:34,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:57:34,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:57:34,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:57:34,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:57:34,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:57:33" (1/3) ... [2020-11-22 12:57:34,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2c1c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:57:34, skipping insertion in model container [2020-11-22 12:57:34,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:33" (2/3) ... [2020-11-22 12:57:34,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2c1c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:57:34, skipping insertion in model container [2020-11-22 12:57:34,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:57:34" (3/3) ... [2020-11-22 12:57:34,154 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2020-11-22 12:57:34,166 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:57:34,171 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-11-22 12:57:34,184 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-22 12:57:34,207 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:57:34,208 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-22 12:57:34,208 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:57:34,208 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:57:34,208 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:57:34,208 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:57:34,209 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:57:34,209 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:57:34,225 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-22 12:57:34,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-22 12:57:34,237 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:34,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-11-22 12:57:34,238 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-22 12:57:34,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:34,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1492, now seen corresponding path program 1 times [2020-11-22 12:57:34,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:57:34,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909425335] [2020-11-22 12:57:34,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:57:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:34,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:34,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909425335] [2020-11-22 12:57:34,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:34,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 12:57:34,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990904561] [2020-11-22 12:57:34,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:57:34,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:57:34,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:57:34,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:57:34,509 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2020-11-22 12:57:34,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:34,574 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-11-22 12:57:34,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:57:34,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-11-22 12:57:34,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:34,583 INFO L225 Difference]: With dead ends: 10 [2020-11-22 12:57:34,584 INFO L226 Difference]: Without dead ends: 9 [2020-11-22 12:57:34,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:57:34,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-22 12:57:34,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-22 12:57:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-22 12:57:34,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2020-11-22 12:57:34,626 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 2 [2020-11-22 12:57:34,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:34,626 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2020-11-22 12:57:34,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:57:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-11-22 12:57:34,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-22 12:57:34,627 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:34,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-11-22 12:57:34,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:57:34,628 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-22 12:57:34,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:34,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1493, now seen corresponding path program 1 times [2020-11-22 12:57:34,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:57:34,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73857811] [2020-11-22 12:57:34,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:57:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:34,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:34,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73857811] [2020-11-22 12:57:34,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:34,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 12:57:34,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117504375] [2020-11-22 12:57:34,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:57:34,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:57:34,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:57:34,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:57:34,732 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 3 states. [2020-11-22 12:57:34,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:34,746 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-11-22 12:57:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:57:34,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-11-22 12:57:34,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:34,747 INFO L225 Difference]: With dead ends: 6 [2020-11-22 12:57:34,747 INFO L226 Difference]: Without dead ends: 6 [2020-11-22 12:57:34,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:57:34,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-11-22 12:57:34,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-11-22 12:57:34,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-22 12:57:34,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2020-11-22 12:57:34,750 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 2 [2020-11-22 12:57:34,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:34,751 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2020-11-22 12:57:34,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:57:34,751 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-11-22 12:57:34,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 12:57:34,751 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:34,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 12:57:34,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:57:34,752 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-22 12:57:34,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:34,753 INFO L82 PathProgramCache]: Analyzing trace with hash 44424719, now seen corresponding path program 1 times [2020-11-22 12:57:34,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:57:34,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462087668] [2020-11-22 12:57:34,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:57:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:57:34,804 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:57:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:57:34,851 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:57:34,892 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 12:57:34,893 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:57:34,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 12:57:34,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:57:34 BoogieIcfgContainer [2020-11-22 12:57:34,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:57:34,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:57:34,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:57:34,924 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:57:34,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:57:34" (3/4) ... [2020-11-22 12:57:34,928 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 12:57:34,929 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:57:34,931 INFO L168 Benchmark]: Toolchain (without parser) took 1861.15 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 45.4 MB in the beginning and 73.9 MB in the end (delta: -28.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:57:34,932 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 79.7 MB. Free memory was 51.7 MB in the beginning and 51.7 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:57:34,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.24 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 45.2 MB in the beginning and 62.9 MB in the end (delta: -17.8 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:34,934 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.46 ms. Allocated memory is still 96.5 MB. Free memory was 62.9 MB in the beginning and 61.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:34,935 INFO L168 Benchmark]: Boogie Preprocessor took 43.37 ms. Allocated memory is still 96.5 MB. Free memory was 61.1 MB in the beginning and 60.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:34,935 INFO L168 Benchmark]: RCFGBuilder took 476.32 ms. Allocated memory is still 96.5 MB. Free memory was 60.0 MB in the beginning and 67.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:34,936 INFO L168 Benchmark]: TraceAbstraction took 776.84 ms. Allocated memory is still 96.5 MB. Free memory was 66.5 MB in the beginning and 73.9 MB in the end (delta: -7.4 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:34,937 INFO L168 Benchmark]: Witness Printer took 5.10 ms. Allocated memory is still 96.5 MB. Free memory is still 73.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:57:34,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 79.7 MB. Free memory was 51.7 MB in the beginning and 51.7 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 502.24 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 45.2 MB in the beginning and 62.9 MB in the end (delta: -17.8 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.46 ms. Allocated memory is still 96.5 MB. Free memory was 62.9 MB in the beginning and 61.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.37 ms. Allocated memory is still 96.5 MB. Free memory was 61.1 MB in the beginning and 60.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 476.32 ms. Allocated memory is still 96.5 MB. Free memory was 60.0 MB in the beginning and 67.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 776.84 ms. Allocated memory is still 96.5 MB. Free memory was 66.5 MB in the beginning and 73.9 MB in the end (delta: -7.4 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.10 ms. Allocated memory is still 96.5 MB. Free memory is still 73.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) [L534] data.str.p2 = &data [L535] data.str.c[1] = sizeof data.str.p1 [L536] return 0; [L536] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 7 SDslu, 1 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:57:37,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:57:37,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:57:37,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-22 12:57:37,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:57:37,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:57:37,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:57:37,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:57:37,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:57:37,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:57:37,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:57:37,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:57:37,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:57:37,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:57:37,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:57:37,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:57:37,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-22 12:57:37,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:57:37,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:57:37,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:57:37,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:57:37,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:57:37,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:57:37,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:57:37,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:57:37,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:57:37,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:57:37,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:57:37,590 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-11-22 12:57:37,622 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:57:37,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:57:37,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:57:37,629 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:57:37,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:57:37,630 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:57:37,630 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:57:37,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:57:37,630 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:57:37,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 12:57:37,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 12:57:37,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:57:37,634 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:57:37,634 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 12:57:37,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:57:37,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:57:37,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:57:37,635 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 12:57:37,635 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 12:57:37,635 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-22 12:57:37,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:57:37,636 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:57:37,636 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:57:37,636 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:57:37,637 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:57:37,637 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:57:37,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:57:37,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:57:37,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:57:37,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:57:37,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:57:37,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:57:37,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:57:37,649 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:57:37,649 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:57:37,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:57:37,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:57:37,650 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_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3baf3e1382b3477cfa26255004191fb506be280 [2020-11-22 12:57:38,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:57:38,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:57:38,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:57:38,136 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:57:38,137 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:57:38,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/../../sv-benchmarks/c/memsafety/test-0158-2.i [2020-11-22 12:57:38,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/data/3fb9fe49a/bfd0dacc23044ffaab08e0df6e6cda1e/FLAGe5c3eda08 [2020-11-22 12:57:38,836 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:57:38,836 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/sv-benchmarks/c/memsafety/test-0158-2.i [2020-11-22 12:57:38,861 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/data/3fb9fe49a/bfd0dacc23044ffaab08e0df6e6cda1e/FLAGe5c3eda08 [2020-11-22 12:57:39,092 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/data/3fb9fe49a/bfd0dacc23044ffaab08e0df6e6cda1e [2020-11-22 12:57:39,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:57:39,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:57:39,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:57:39,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:57:39,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:57:39,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:57:39" (1/1) ... [2020-11-22 12:57:39,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a7a5fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39, skipping insertion in model container [2020-11-22 12:57:39,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:57:39" (1/1) ... [2020-11-22 12:57:39,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:57:39,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:57:39,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:57:39,525 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:57:39,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:57:39,658 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:57:39,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39 WrapperNode [2020-11-22 12:57:39,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:57:39,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:57:39,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:57:39,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:57:39,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39" (1/1) ... [2020-11-22 12:57:39,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39" (1/1) ... [2020-11-22 12:57:39,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:57:39,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:57:39,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:57:39,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:57:39,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39" (1/1) ... [2020-11-22 12:57:39,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39" (1/1) ... [2020-11-22 12:57:39,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39" (1/1) ... [2020-11-22 12:57:39,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39" (1/1) ... [2020-11-22 12:57:39,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39" (1/1) ... [2020-11-22 12:57:39,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39" (1/1) ... [2020-11-22 12:57:39,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39" (1/1) ... [2020-11-22 12:57:39,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:57:39,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:57:39,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:57:39,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:57:39,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:57:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-22 12:57:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-22 12:57:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:57:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-11-22 12:57:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:57:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:57:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:57:39,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:57:40,434 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:57:40,434 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-22 12:57:40,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:57:40 BoogieIcfgContainer [2020-11-22 12:57:40,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:57:40,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:57:40,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:57:40,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:57:40,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:57:39" (1/3) ... [2020-11-22 12:57:40,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91144f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:57:40, skipping insertion in model container [2020-11-22 12:57:40,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:39" (2/3) ... [2020-11-22 12:57:40,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91144f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:57:40, skipping insertion in model container [2020-11-22 12:57:40,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:57:40" (3/3) ... [2020-11-22 12:57:40,449 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2020-11-22 12:57:40,462 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:57:40,467 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-11-22 12:57:40,481 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-22 12:57:40,518 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:57:40,518 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-22 12:57:40,519 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:57:40,519 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:57:40,519 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:57:40,519 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:57:40,519 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:57:40,520 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:57:40,535 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-22 12:57:40,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-22 12:57:40,544 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:40,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-22 12:57:40,545 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-22 12:57:40,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:40,553 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2020-11-22 12:57:40,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:40,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777234143] [2020-11-22 12:57:40,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:40,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:57:40,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:57:40,814 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-11-22 12:57:40,815 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2020-11-22 12:57:40,816 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 12:57:40,827 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 12:57:40,832 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-22 12:57:40,832 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-11-22 12:57:40,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:40,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:57:40,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:40,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777234143] [2020-11-22 12:57:40,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:40,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:57:40,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704373460] [2020-11-22 12:57:40,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:57:40,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:57:40,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:57:40,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:57:40,897 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2020-11-22 12:57:40,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:40,969 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-11-22 12:57:40,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:57:40,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-22 12:57:40,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:40,977 INFO L225 Difference]: With dead ends: 13 [2020-11-22 12:57:40,977 INFO L226 Difference]: Without dead ends: 11 [2020-11-22 12:57:40,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:57:40,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-22 12:57:41,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-22 12:57:41,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-22 12:57:41,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2020-11-22 12:57:41,005 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 3 [2020-11-22 12:57:41,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:41,005 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2020-11-22 12:57:41,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:57:41,005 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-11-22 12:57:41,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-22 12:57:41,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:41,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-22 12:57:41,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:57:41,223 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-22 12:57:41,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:41,223 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-11-22 12:57:41,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:41,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303707252] [2020-11-22 12:57:41,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:41,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 12:57:41,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:57:41,327 INFO L441 ElimStorePlain]: Different costs {0=[|v_#length_14|], 1=[|v_#valid_20|]} [2020-11-22 12:57:41,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 12:57:41,347 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-11-22 12:57:41,348 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 12:57:41,405 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 12:57:41,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 12:57:41,475 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2020-11-22 12:57:41,476 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 12:57:41,490 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 12:57:41,492 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-22 12:57:41,492 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2020-11-22 12:57:41,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:41,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:57:41,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:57:41,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303707252] [2020-11-22 12:57:41,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:41,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:57:41,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869898932] [2020-11-22 12:57:41,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:57:41,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:57:41,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:57:41,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:57:41,596 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 4 states. [2020-11-22 12:57:41,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:41,668 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-11-22 12:57:41,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:57:41,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2020-11-22 12:57:41,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:41,669 INFO L225 Difference]: With dead ends: 8 [2020-11-22 12:57:41,669 INFO L226 Difference]: Without dead ends: 8 [2020-11-22 12:57:41,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:57:41,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-22 12:57:41,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-22 12:57:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-22 12:57:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-11-22 12:57:41,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 3 [2020-11-22 12:57:41,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:41,672 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-11-22 12:57:41,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:57:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-11-22 12:57:41,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 12:57:41,673 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:41,673 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:57:41,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:57:41,888 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-22 12:57:41,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:41,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1803026981, now seen corresponding path program 1 times [2020-11-22 12:57:41,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:57:41,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574658871] [2020-11-22 12:57:41,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_65f3826c-bc11-42ae-9a80-a0a94a884b4b/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 12:57:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:57:42,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:57:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:57:42,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:57:42,105 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:57:42,106 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:57:42,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:57:42,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:57:42 BoogieIcfgContainer [2020-11-22 12:57:42,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:57:42,332 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:57:42,332 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:57:42,332 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:57:42,333 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:57:40" (3/4) ... [2020-11-22 12:57:42,337 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 12:57:42,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:57:42,339 INFO L168 Benchmark]: Toolchain (without parser) took 3239.01 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 47.4 MB in the beginning and 55.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:42,340 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 65.0 MB. Free memory is still 48.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:57:42,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.17 ms. Allocated memory is still 65.0 MB. Free memory was 47.2 MB in the beginning and 37.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:42,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.45 ms. Allocated memory is still 65.0 MB. Free memory was 37.7 MB in the beginning and 36.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:42,346 INFO L168 Benchmark]: Boogie Preprocessor took 52.89 ms. Allocated memory is still 65.0 MB. Free memory was 35.7 MB in the beginning and 34.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:42,353 INFO L168 Benchmark]: RCFGBuilder took 653.01 ms. Allocated memory is still 65.0 MB. Free memory was 34.5 MB in the beginning and 40.1 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:42,354 INFO L168 Benchmark]: TraceAbstraction took 1893.20 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 39.8 MB in the beginning and 56.3 MB in the end (delta: -16.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:42,355 INFO L168 Benchmark]: Witness Printer took 5.49 ms. Allocated memory is still 92.3 MB. Free memory was 56.1 MB in the beginning and 55.2 MB in the end (delta: 851.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:42,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 65.0 MB. Free memory is still 48.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 560.17 ms. Allocated memory is still 65.0 MB. Free memory was 47.2 MB in the beginning and 37.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.45 ms. Allocated memory is still 65.0 MB. Free memory was 37.7 MB in the beginning and 36.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.89 ms. Allocated memory is still 65.0 MB. Free memory was 35.7 MB in the beginning and 34.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 653.01 ms. Allocated memory is still 65.0 MB. Free memory was 34.5 MB in the beginning and 40.1 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1893.20 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 39.8 MB in the beginning and 56.3 MB in the end (delta: -16.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.49 ms. Allocated memory is still 92.3 MB. Free memory was 56.1 MB in the beginning and 55.2 MB in the end (delta: 851.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) [L534] data.str.p2 = &data [L535] data.str.c[1] = sizeof data.str.p1 [L536] return 0; [L536] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 19 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 1 QuantifiedInterpolants, 84 SizeOfPredicates, 5 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 6 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...