./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_3b8af7cb-a588-452d-878a-16702746fedd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/bin/utaipan/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/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 64bit --witnessprinter.graph.data.programhash 3f34751565a9d43a481fab038d13037e70cdccbf .............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:01:55,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:01:55,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:01:55,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:01:55,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:01:55,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:01:55,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:01:55,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:01:55,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:01:55,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:01:55,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:01:55,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:01:55,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:01:55,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:01:55,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:01:55,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:01:55,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:01:55,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:01:55,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:01:55,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:01:55,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:01:55,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:01:55,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:01:55,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:01:55,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:01:55,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:01:55,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:01:55,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:01:55,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:01:55,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:01:55,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:01:55,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:01:55,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:01:55,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:01:55,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:01:55,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:01:55,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:01:55,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:01:55,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:01:55,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:01:55,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:01:55,455 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/bin/utaipan/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2019-12-07 17:01:55,465 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:01:55,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:01:55,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 17:01:55,466 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 17:01:55,466 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 17:01:55,466 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 17:01:55,466 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 17:01:55,466 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 17:01:55,466 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 17:01:55,466 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 17:01:55,466 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 17:01:55,466 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 17:01:55,467 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 17:01:55,467 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 17:01:55,467 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 17:01:55,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:01:55,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:01:55,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:01:55,468 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:01:55,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:01:55,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:01:55,468 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 17:01:55,468 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 17:01:55,468 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 17:01:55,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:01:55,468 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:01:55,468 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:01:55,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:01:55,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:01:55,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:01:55,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:01:55,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:01:55,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:01:55,469 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 17:01:55,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:01:55,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:01:55,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 17:01:55,470 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f34751565a9d43a481fab038d13037e70cdccbf [2019-12-07 17:01:55,569 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:01:55,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:01:55,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:01:55,582 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:01:55,582 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:01:55,583 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/bin/utaipan/../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2019-12-07 17:01:55,629 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/bin/utaipan/data/d09446fe0/d7e47baaf5bd4b82b81276695b92d714/FLAG43a60c8c3 [2019-12-07 17:01:55,978 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:01:55,978 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2019-12-07 17:01:55,982 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/bin/utaipan/data/d09446fe0/d7e47baaf5bd4b82b81276695b92d714/FLAG43a60c8c3 [2019-12-07 17:01:56,402 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/bin/utaipan/data/d09446fe0/d7e47baaf5bd4b82b81276695b92d714 [2019-12-07 17:01:56,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:01:56,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:01:56,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:01:56,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:01:56,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:01:56,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:01:56" (1/1) ... [2019-12-07 17:01:56,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49bd5314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56, skipping insertion in model container [2019-12-07 17:01:56,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:01:56" (1/1) ... [2019-12-07 17:01:56,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:01:56,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:01:56,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:01:56,541 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:01:56,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:01:56,597 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:01:56,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56 WrapperNode [2019-12-07 17:01:56,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:01:56,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:01:56,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:01:56,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:01:56,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56" (1/1) ... [2019-12-07 17:01:56,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56" (1/1) ... [2019-12-07 17:01:56,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:01:56,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:01:56,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:01:56,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:01:56,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56" (1/1) ... [2019-12-07 17:01:56,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56" (1/1) ... [2019-12-07 17:01:56,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56" (1/1) ... [2019-12-07 17:01:56,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56" (1/1) ... [2019-12-07 17:01:56,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56" (1/1) ... [2019-12-07 17:01:56,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56" (1/1) ... [2019-12-07 17:01:56,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56" (1/1) ... [2019-12-07 17:01:56,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:01:56,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:01:56,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:01:56,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:01:56,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:01:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:01:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 17:01:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:01:56,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:01:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 17:01:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:01:56,822 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:01:56,822 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 17:01:56,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:01:56 BoogieIcfgContainer [2019-12-07 17:01:56,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:01:56,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:01:56,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:01:56,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:01:56,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:01:56" (1/3) ... [2019-12-07 17:01:56,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10115923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:01:56, skipping insertion in model container [2019-12-07 17:01:56,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:01:56" (2/3) ... [2019-12-07 17:01:56,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10115923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:01:56, skipping insertion in model container [2019-12-07 17:01:56,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:01:56" (3/3) ... [2019-12-07 17:01:56,829 INFO L109 eAbstractionObserver]: Analyzing ICFG SyntaxSupportPointer01-3.c [2019-12-07 17:01:56,835 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:01:56,839 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-12-07 17:01:56,847 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-12-07 17:01:56,858 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:01:56,858 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 17:01:56,858 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:01:56,858 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:01:56,859 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:01:56,859 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:01:56,859 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:01:56,859 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:01:56,868 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-12-07 17:01:56,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-07 17:01:56,873 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:01:56,873 INFO L410 BasicCegarLoop]: trace histogram [1, 1] [2019-12-07 17:01:56,874 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 17:01:56,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:01:56,878 INFO L82 PathProgramCache]: Analyzing trace with hash 2085, now seen corresponding path program 1 times [2019-12-07 17:01:56,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 17:01:56,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843148616] [2019-12-07 17:01:56,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:01:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:01:56,989 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 17:01:56,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843148616] [2019-12-07 17:01:56,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:01:56,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:01:56,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16948441] [2019-12-07 17:01:56,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:01:56,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 17:01:57,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:01:57,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:01:57,004 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-12-07 17:01:57,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:01:57,035 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-12-07 17:01:57,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:01:57,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-12-07 17:01:57,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:01:57,042 INFO L225 Difference]: With dead ends: 16 [2019-12-07 17:01:57,042 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 17:01:57,043 INFO L630 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 [2019-12-07 17:01:57,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 17:01:57,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 17:01:57,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 17:01:57,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-12-07 17:01:57,063 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 2 [2019-12-07 17:01:57,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:01:57,064 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-12-07 17:01:57,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:01:57,064 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-12-07 17:01:57,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-07 17:01:57,064 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:01:57,064 INFO L410 BasicCegarLoop]: trace histogram [1, 1] [2019-12-07 17:01:57,064 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 17:01:57,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:01:57,065 INFO L82 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 1 times [2019-12-07 17:01:57,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 17:01:57,065 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665361757] [2019-12-07 17:01:57,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:01:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:01:57,098 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 17:01:57,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665361757] [2019-12-07 17:01:57,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:01:57,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:01:57,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521996254] [2019-12-07 17:01:57,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:01:57,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 17:01:57,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:01:57,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:01:57,100 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 3 states. [2019-12-07 17:01:57,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:01:57,113 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-12-07 17:01:57,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:01:57,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-12-07 17:01:57,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:01:57,113 INFO L225 Difference]: With dead ends: 11 [2019-12-07 17:01:57,114 INFO L226 Difference]: Without dead ends: 11 [2019-12-07 17:01:57,114 INFO L630 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 [2019-12-07 17:01:57,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-07 17:01:57,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 17:01:57,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 17:01:57,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-12-07 17:01:57,116 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 2 [2019-12-07 17:01:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:01:57,116 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-12-07 17:01:57,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:01:57,116 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-12-07 17:01:57,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 17:01:57,117 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:01:57,117 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 17:01:57,117 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 17:01:57,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:01:57,117 INFO L82 PathProgramCache]: Analyzing trace with hash 62096841, now seen corresponding path program 1 times [2019-12-07 17:01:57,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 17:01:57,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457723138] [2019-12-07 17:01:57,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:01:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:01:57,134 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 17:01:57,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457723138] [2019-12-07 17:01:57,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:01:57,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:01:57,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456589628] [2019-12-07 17:01:57,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:01:57,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 17:01:57,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:01:57,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:01:57,136 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 3 states. [2019-12-07 17:01:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:01:57,142 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-12-07 17:01:57,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:01:57,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 17:01:57,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:01:57,143 INFO L225 Difference]: With dead ends: 10 [2019-12-07 17:01:57,143 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 17:01:57,144 INFO L630 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 [2019-12-07 17:01:57,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 17:01:57,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 17:01:57,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 17:01:57,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-12-07 17:01:57,145 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2019-12-07 17:01:57,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:01:57,145 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-12-07 17:01:57,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:01:57,146 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-12-07 17:01:57,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 17:01:57,146 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:01:57,146 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:01:57,146 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 17:01:57,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:01:57,146 INFO L82 PathProgramCache]: Analyzing trace with hash -454475988, now seen corresponding path program 1 times [2019-12-07 17:01:57,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 17:01:57,147 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675105753] [2019-12-07 17:01:57,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:01:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:01:57,182 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 17:01:57,182 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675105753] [2019-12-07 17:01:57,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:01:57,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:01:57,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932777246] [2019-12-07 17:01:57,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:01:57,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 17:01:57,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:01:57,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:01:57,183 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2019-12-07 17:01:57,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:01:57,202 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-12-07 17:01:57,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:01:57,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 17:01:57,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:01:57,203 INFO L225 Difference]: With dead ends: 9 [2019-12-07 17:01:57,203 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 17:01:57,203 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:01:57,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 17:01:57,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 17:01:57,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 17:01:57,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 17:01:57,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-12-07 17:01:57,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:01:57,204 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:01:57,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:01:57,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:01:57,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 17:01:57,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:01:57 BoogieIcfgContainer [2019-12-07 17:01:57,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:01:57,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:01:57,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:01:57,208 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:01:57,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:01:56" (3/4) ... [2019-12-07 17:01:57,211 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 17:01:57,218 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-12-07 17:01:57,218 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 17:01:57,218 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 17:01:57,245 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3b8af7cb-a588-452d-878a-16702746fedd/bin/utaipan/witness.graphml [2019-12-07 17:01:57,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:01:57,247 INFO L168 Benchmark]: Toolchain (without parser) took 841.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 943.5 MB in the beginning and 1.0 GB in the end (delta: -71.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:01:57,247 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:01:57,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:01:57,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:01:57,248 INFO L168 Benchmark]: Boogie Preprocessor took 14.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:01:57,248 INFO L168 Benchmark]: RCFGBuilder took 187.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:01:57,249 INFO L168 Benchmark]: TraceAbstraction took 384.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:01:57,249 INFO L168 Benchmark]: Witness Printer took 37.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:01:57,251 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 191.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 187.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 384.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. * Witness Printer took 37.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 10 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 31 SDslu, 3 SDs, 0 SdLazy, 34 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 295 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 correct! Received shutdown request...