./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/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 c8f17cf5334c3a5b079beafc57a2e2bffaea721f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 06:38:11,118 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:38:11,120 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:38:11,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:38:11,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:38:11,128 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:38:11,128 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:38:11,129 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:38:11,131 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:38:11,131 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:38:11,132 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:38:11,132 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:38:11,133 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:38:11,133 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:38:11,134 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:38:11,135 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:38:11,135 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:38:11,136 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:38:11,138 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:38:11,139 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:38:11,140 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:38:11,141 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:38:11,142 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:38:11,142 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:38:11,143 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:38:11,143 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:38:11,144 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:38:11,144 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:38:11,145 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:38:11,146 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:38:11,146 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:38:11,146 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:38:11,147 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:38:11,147 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:38:11,147 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:38:11,148 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:38:11,148 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-11-23 06:38:11,159 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:38:11,159 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:38:11,160 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 06:38:11,160 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 06:38:11,160 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 06:38:11,160 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 06:38:11,160 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 06:38:11,160 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 06:38:11,160 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 06:38:11,160 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 06:38:11,160 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 06:38:11,160 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 06:38:11,161 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 06:38:11,161 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 06:38:11,161 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 06:38:11,161 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:38:11,161 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 06:38:11,162 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 06:38:11,162 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 06:38:11,162 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 06:38:11,162 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:38:11,162 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-23 06:38:11,162 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-23 06:38:11,162 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-23 06:38:11,162 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 06:38:11,163 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 06:38:11,163 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:38:11,163 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:38:11,163 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 06:38:11,163 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 06:38:11,163 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 06:38:11,163 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 06:38:11,163 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:38:11,163 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 06:38:11,163 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 06:38:11,163 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 06:38:11,163 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 06:38:11,164 INFO L133 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/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/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 -> c8f17cf5334c3a5b079beafc57a2e2bffaea721f [2018-11-23 06:38:11,185 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:38:11,193 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:38:11,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:38:11,196 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:38:11,197 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:38:11,197 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-11-23 06:38:11,233 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/data/d8eaa1550/a67a5f0ffab144adb019c634ab0acb17/FLAG57a12f1c8 [2018-11-23 06:38:11,632 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:38:11,632 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-11-23 06:38:11,636 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/data/d8eaa1550/a67a5f0ffab144adb019c634ab0acb17/FLAG57a12f1c8 [2018-11-23 06:38:11,647 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/data/d8eaa1550/a67a5f0ffab144adb019c634ab0acb17 [2018-11-23 06:38:11,649 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:38:11,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:38:11,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:38:11,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:38:11,653 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:38:11,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:38:11" (1/1) ... [2018-11-23 06:38:11,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e6cc337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11, skipping insertion in model container [2018-11-23 06:38:11,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:38:11" (1/1) ... [2018-11-23 06:38:11,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:38:11,674 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:38:11,782 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:38:11,789 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:38:11,798 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:38:11,811 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:38:11,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11 WrapperNode [2018-11-23 06:38:11,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:38:11,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:38:11,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:38:11,812 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:38:11,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11" (1/1) ... [2018-11-23 06:38:11,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11" (1/1) ... [2018-11-23 06:38:11,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:38:11,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:38:11,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:38:11,826 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:38:11,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11" (1/1) ... [2018-11-23 06:38:11,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11" (1/1) ... [2018-11-23 06:38:11,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11" (1/1) ... [2018-11-23 06:38:11,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11" (1/1) ... [2018-11-23 06:38:11,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11" (1/1) ... [2018-11-23 06:38:11,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11" (1/1) ... [2018-11-23 06:38:11,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11" (1/1) ... [2018-11-23 06:38:11,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:38:11,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:38:11,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:38:11,877 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:38:11,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/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 [2018-11-23 06:38:11,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 06:38:11,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 06:38:11,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 06:38:11,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 06:38:11,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:38:11,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:38:11,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 06:38:11,912 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 06:38:11,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 06:38:11,913 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-23 06:38:11,913 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-23 06:38:12,021 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:38:12,021 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 06:38:12,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:38:12 BoogieIcfgContainer [2018-11-23 06:38:12,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:38:12,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 06:38:12,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 06:38:12,024 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 06:38:12,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:38:11" (1/3) ... [2018-11-23 06:38:12,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2b256e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:38:12, skipping insertion in model container [2018-11-23 06:38:12,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:11" (2/3) ... [2018-11-23 06:38:12,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2b256e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:38:12, skipping insertion in model container [2018-11-23 06:38:12,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:38:12" (3/3) ... [2018-11-23 06:38:12,027 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers3_true-valid-memsafety.c [2018-11-23 06:38:12,036 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 06:38:12,042 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-23 06:38:12,052 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-23 06:38:12,067 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 06:38:12,067 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-23 06:38:12,068 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 06:38:12,068 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 06:38:12,068 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 06:38:12,068 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 06:38:12,068 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 06:38:12,068 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 06:38:12,076 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-23 06:38:12,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 06:38:12,083 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:38:12,084 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:38:12,085 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 06:38:12,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:38:12,089 INFO L82 PathProgramCache]: Analyzing trace with hash -335730452, now seen corresponding path program 1 times [2018-11-23 06:38:12,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:38:12,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:38:12,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:38:12,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:38:12,119 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:38:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:12,196 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:38:12,196 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 06:38:12,196 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:38:12,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 06:38:12,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 06:38:12,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 06:38:12,210 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2018-11-23 06:38:12,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:38:12,268 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-11-23 06:38:12,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 06:38:12,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 06:38:12,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:38:12,275 INFO L225 Difference]: With dead ends: 23 [2018-11-23 06:38:12,275 INFO L226 Difference]: Without dead ends: 18 [2018-11-23 06:38:12,276 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 06:38:12,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-23 06:38:12,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-23 06:38:12,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 06:38:12,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-23 06:38:12,302 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2018-11-23 06:38:12,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:38:12,303 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-23 06:38:12,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 06:38:12,303 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-23 06:38:12,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 06:38:12,303 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:38:12,304 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:38:12,304 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 06:38:12,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:38:12,304 INFO L82 PathProgramCache]: Analyzing trace with hash -335730451, now seen corresponding path program 1 times [2018-11-23 06:38:12,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:38:12,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:38:12,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:38:12,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:38:12,306 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:38:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:12,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:12,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:38:12,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 06:38:12,462 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:38:12,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 06:38:12,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 06:38:12,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 06:38:12,464 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2018-11-23 06:38:12,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:38:12,514 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-11-23 06:38:12,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 06:38:12,515 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-23 06:38:12,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:38:12,515 INFO L225 Difference]: With dead ends: 21 [2018-11-23 06:38:12,515 INFO L226 Difference]: Without dead ends: 21 [2018-11-23 06:38:12,516 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 06:38:12,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-23 06:38:12,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-11-23 06:38:12,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-23 06:38:12,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-11-23 06:38:12,519 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 9 [2018-11-23 06:38:12,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:38:12,519 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-11-23 06:38:12,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 06:38:12,519 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-11-23 06:38:12,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 06:38:12,519 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:38:12,519 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:38:12,520 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 06:38:12,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:38:12,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1232932722, now seen corresponding path program 1 times [2018-11-23 06:38:12,520 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:38:12,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:38:12,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:38:12,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:38:12,521 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:38:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:12,687 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:38:12,687 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:38:12,688 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-11-23 06:38:12,689 INFO L202 CegarAbsIntRunner]: [0], [1], [13], [21], [22], [24], [26], [32], [33], [34], [36] [2018-11-23 06:38:12,720 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:38:12,721 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:38:12,875 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:38:12,877 INFO L272 AbstractInterpreter]: Visited 11 different actions 27 times. Merged at 4 different actions 16 times. Never widened. Performed 202 root evaluator evaluations with a maximum evaluation depth of 4. Performed 202 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 1 fixpoints after 1 different actions. Largest state had 16 variables. [2018-11-23 06:38:12,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:38:12,888 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:38:12,888 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:38:12,888 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:38:12,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:38:12,895 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:38:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:12,916 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:38:12,939 INFO L478 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 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 06:38:12,940 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 06:38:12,943 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 06:38:12,943 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 06:38:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:12,978 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:38:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:13,070 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:38:13,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2018-11-23 06:38:13,070 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:38:13,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 06:38:13,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 06:38:13,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-23 06:38:13,071 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2018-11-23 06:38:13,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:38:13,251 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-11-23 06:38:13,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 06:38:13,252 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2018-11-23 06:38:13,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:38:13,252 INFO L225 Difference]: With dead ends: 24 [2018-11-23 06:38:13,252 INFO L226 Difference]: Without dead ends: 24 [2018-11-23 06:38:13,253 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2018-11-23 06:38:13,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-23 06:38:13,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-23 06:38:13,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-23 06:38:13,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-11-23 06:38:13,256 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 12 [2018-11-23 06:38:13,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:38:13,256 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-11-23 06:38:13,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 06:38:13,256 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-11-23 06:38:13,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 06:38:13,257 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:38:13,257 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:38:13,257 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 06:38:13,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:38:13,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1135899522, now seen corresponding path program 1 times [2018-11-23 06:38:13,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:38:13,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:38:13,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:38:13,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:38:13,258 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:38:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 06:38:13,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:38:13,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 06:38:13,322 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:38:13,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 06:38:13,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 06:38:13,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 06:38:13,322 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 6 states. [2018-11-23 06:38:13,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:38:13,359 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-11-23 06:38:13,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 06:38:13,359 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-11-23 06:38:13,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:38:13,360 INFO L225 Difference]: With dead ends: 23 [2018-11-23 06:38:13,360 INFO L226 Difference]: Without dead ends: 23 [2018-11-23 06:38:13,360 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 06:38:13,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-23 06:38:13,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-23 06:38:13,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-23 06:38:13,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-11-23 06:38:13,362 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 22 [2018-11-23 06:38:13,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:38:13,363 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-11-23 06:38:13,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 06:38:13,363 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-11-23 06:38:13,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 06:38:13,363 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:38:13,364 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:38:13,364 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 06:38:13,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:38:13,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1135899523, now seen corresponding path program 1 times [2018-11-23 06:38:13,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:38:13,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:38:13,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:38:13,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:38:13,365 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:38:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:13,399 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:13,399 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:38:13,399 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:38:13,399 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 23 with the following transitions: [2018-11-23 06:38:13,399 INFO L202 CegarAbsIntRunner]: [0], [1], [6], [9], [13], [19], [21], [22], [26], [30], [31], [32], [33], [34], [36], [37] [2018-11-23 06:38:13,400 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:38:13,401 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:38:13,449 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:38:13,449 INFO L272 AbstractInterpreter]: Visited 16 different actions 35 times. Merged at 6 different actions 15 times. Widened at 1 different actions 1 times. Performed 205 root evaluator evaluations with a maximum evaluation depth of 4. Performed 205 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 3 fixpoints after 3 different actions. Largest state had 18 variables. [2018-11-23 06:38:13,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:38:13,451 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:38:13,451 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:38:13,452 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:38:13,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:38:13,458 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:38:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:13,472 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:38:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:13,479 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:38:13,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:13,530 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:38:13,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2018-11-23 06:38:13,530 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:38:13,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 06:38:13,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 06:38:13,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-23 06:38:13,531 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 7 states. [2018-11-23 06:38:13,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:38:13,560 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-11-23 06:38:13,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 06:38:13,560 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-23 06:38:13,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:38:13,560 INFO L225 Difference]: With dead ends: 28 [2018-11-23 06:38:13,561 INFO L226 Difference]: Without dead ends: 28 [2018-11-23 06:38:13,561 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-23 06:38:13,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-23 06:38:13,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2018-11-23 06:38:13,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-23 06:38:13,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-11-23 06:38:13,563 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 22 [2018-11-23 06:38:13,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:38:13,563 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-11-23 06:38:13,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 06:38:13,564 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-11-23 06:38:13,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 06:38:13,564 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:38:13,564 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:38:13,564 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 06:38:13,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:38:13,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1477178082, now seen corresponding path program 2 times [2018-11-23 06:38:13,565 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:38:13,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:38:13,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:38:13,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:38:13,565 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:38:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:13,625 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:13,625 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:38:13,625 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:38:13,626 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 06:38:13,626 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 06:38:13,626 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:38:13,626 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:38:13,638 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 06:38:13,638 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 06:38:13,653 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-11-23 06:38:13,654 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 06:38:13,656 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:38:13,660 INFO L478 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 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 06:38:13,660 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 06:38:13,664 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 06:38:13,665 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 06:38:13,707 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-23 06:38:13,707 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:38:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-23 06:38:13,805 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 06:38:13,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 15 [2018-11-23 06:38:13,805 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:38:13,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 06:38:13,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 06:38:13,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-11-23 06:38:13,806 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 6 states. [2018-11-23 06:38:13,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:38:13,841 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-11-23 06:38:13,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 06:38:13,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-23 06:38:13,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:38:13,842 INFO L225 Difference]: With dead ends: 25 [2018-11-23 06:38:13,842 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 06:38:13,842 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2018-11-23 06:38:13,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 06:38:13,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 06:38:13,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 06:38:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 06:38:13,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-23 06:38:13,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:38:13,844 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:38:13,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 06:38:13,844 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 06:38:13,844 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 06:38:13,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:38:13 BoogieIcfgContainer [2018-11-23 06:38:13,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 06:38:13,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:38:13,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:38:13,848 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:38:13,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:38:12" (3/4) ... [2018-11-23 06:38:13,850 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 06:38:13,854 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 06:38:13,854 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 06:38:13,854 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-11-23 06:38:13,857 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-23 06:38:13,857 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 06:38:13,857 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 06:38:13,857 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 06:38:13,882 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b94c7f63-d0c2-4034-8d08-b14d5c795492/bin-2019/utaipan/witness.graphml [2018-11-23 06:38:13,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:38:13,883 INFO L168 Benchmark]: Toolchain (without parser) took 2233.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 961.1 MB in the beginning and 875.1 MB in the end (delta: 86.1 MB). Peak memory consumption was 215.6 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:13,884 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:38:13,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.47 ms. Allocated memory is still 1.0 GB. Free memory was 961.1 MB in the beginning and 950.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:13,884 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.01 ms. Allocated memory is still 1.0 GB. Free memory was 950.4 MB in the beginning and 945.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:13,885 INFO L168 Benchmark]: Boogie Preprocessor took 50.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:13,885 INFO L168 Benchmark]: RCFGBuilder took 144.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:13,885 INFO L168 Benchmark]: TraceAbstraction took 1825.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.0 MB in the end (delta: 226.6 MB). Peak memory consumption was 226.6 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:13,885 INFO L168 Benchmark]: Witness Printer took 34.57 ms. Allocated memory is still 1.2 GB. Free memory was 882.0 MB in the beginning and 875.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:13,887 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 161.47 ms. Allocated memory is still 1.0 GB. Free memory was 961.1 MB in the beginning and 950.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.01 ms. Allocated memory is still 1.0 GB. Free memory was 950.4 MB in the beginning and 945.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 144.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1825.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.0 MB in the end (delta: 226.6 MB). Peak memory consumption was 226.6 MB. Max. memory is 11.5 GB. * Witness Printer took 34.57 ms. Allocated memory is still 1.2 GB. Free memory was 882.0 MB in the beginning and 875.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 5 error locations. SAFE Result, 1.7s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 78 SDtfs, 82 SDslu, 109 SDs, 0 SdLazy, 153 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 158 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 19027 SizeOfPredicates, 5 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 57/120 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...