./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/lockfree-3.2_false-valid-memtrack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/lockfree-3.2_false-valid-memtrack.i -s /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/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 1cdc9955d0f744a8bccc682f75e63a6c9ebbfe78 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/lockfree-3.2_false-valid-memtrack.i -s /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/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 1cdc9955d0f744a8bccc682f75e63a6c9ebbfe78 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 18:24:31,466 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 18:24:31,467 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 18:24:31,473 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 18:24:31,473 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 18:24:31,474 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 18:24:31,474 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 18:24:31,475 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 18:24:31,476 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 18:24:31,477 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 18:24:31,477 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 18:24:31,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 18:24:31,478 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 18:24:31,478 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 18:24:31,479 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 18:24:31,480 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 18:24:31,480 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 18:24:31,481 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 18:24:31,482 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 18:24:31,483 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 18:24:31,483 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 18:24:31,484 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 18:24:31,485 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 18:24:31,485 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 18:24:31,485 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 18:24:31,486 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 18:24:31,487 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 18:24:31,487 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 18:24:31,487 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 18:24:31,488 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 18:24:31,488 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 18:24:31,489 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 18:24:31,489 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 18:24:31,489 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 18:24:31,490 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 18:24:31,490 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 18:24:31,490 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-08 18:24:31,498 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 18:24:31,498 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 18:24:31,499 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 18:24:31,499 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 18:24:31,499 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 18:24:31,499 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 18:24:31,499 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 18:24:31,499 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 18:24:31,499 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 18:24:31,500 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 18:24:31,500 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 18:24:31,500 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 18:24:31,500 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 18:24:31,500 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 18:24:31,500 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 18:24:31,501 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 18:24:31,501 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 18:24:31,501 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 18:24:31,501 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 18:24:31,501 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 18:24:31,501 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 18:24:31,501 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 18:24:31,501 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 18:24:31,501 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 18:24:31,502 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 18:24:31,502 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 18:24:31,502 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 18:24:31,502 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 18:24:31,502 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 18:24:31,502 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 18:24:31,502 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 18:24:31,502 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 18:24:31,503 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 18:24:31,503 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 18:24:31,503 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 18:24:31,503 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 18:24:31,503 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_03916cda-5cda-4190-a325-b5f4dcc3bf87/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 -> 1cdc9955d0f744a8bccc682f75e63a6c9ebbfe78 [2018-12-08 18:24:31,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 18:24:31,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 18:24:31,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 18:24:31,530 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 18:24:31,530 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 18:24:31,530 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/../../sv-benchmarks/c/memsafety/lockfree-3.2_false-valid-memtrack.i [2018-12-08 18:24:31,565 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/data/a796320d2/458435116c464cf4afdcfd5b4a8bb14c/FLAG50c601a1f [2018-12-08 18:24:32,015 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 18:24:32,015 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/sv-benchmarks/c/memsafety/lockfree-3.2_false-valid-memtrack.i [2018-12-08 18:24:32,021 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/data/a796320d2/458435116c464cf4afdcfd5b4a8bb14c/FLAG50c601a1f [2018-12-08 18:24:32,029 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/data/a796320d2/458435116c464cf4afdcfd5b4a8bb14c [2018-12-08 18:24:32,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 18:24:32,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 18:24:32,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 18:24:32,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 18:24:32,034 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 18:24:32,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 06:24:32" (1/1) ... [2018-12-08 18:24:32,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab2707f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32, skipping insertion in model container [2018-12-08 18:24:32,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 06:24:32" (1/1) ... [2018-12-08 18:24:32,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 18:24:32,059 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 18:24:32,201 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 18:24:32,240 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 18:24:32,264 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 18:24:32,285 INFO L195 MainTranslator]: Completed translation [2018-12-08 18:24:32,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32 WrapperNode [2018-12-08 18:24:32,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 18:24:32,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 18:24:32,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 18:24:32,286 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 18:24:32,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32" (1/1) ... [2018-12-08 18:24:32,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32" (1/1) ... [2018-12-08 18:24:32,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 18:24:32,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 18:24:32,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 18:24:32,304 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 18:24:32,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32" (1/1) ... [2018-12-08 18:24:32,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32" (1/1) ... [2018-12-08 18:24:32,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32" (1/1) ... [2018-12-08 18:24:32,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32" (1/1) ... [2018-12-08 18:24:32,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32" (1/1) ... [2018-12-08 18:24:32,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32" (1/1) ... [2018-12-08 18:24:32,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32" (1/1) ... [2018-12-08 18:24:32,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 18:24:32,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 18:24:32,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 18:24:32,324 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 18:24:32,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/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 [2018-12-08 18:24:32,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 18:24:32,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 18:24:32,355 INFO L130 BoogieDeclarations]: Found specification of procedure push [2018-12-08 18:24:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2018-12-08 18:24:32,355 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2018-12-08 18:24:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2018-12-08 18:24:32,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 18:24:32,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 18:24:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 18:24:32,355 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 18:24:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 18:24:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 18:24:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 18:24:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 18:24:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 18:24:32,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 18:24:32,593 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 18:24:32,593 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 18:24:32,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:24:32 BoogieIcfgContainer [2018-12-08 18:24:32,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 18:24:32,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 18:24:32,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 18:24:32,598 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 18:24:32,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 06:24:32" (1/3) ... [2018-12-08 18:24:32,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f375c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 06:24:32, skipping insertion in model container [2018-12-08 18:24:32,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:32" (2/3) ... [2018-12-08 18:24:32,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f375c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 06:24:32, skipping insertion in model container [2018-12-08 18:24:32,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:24:32" (3/3) ... [2018-12-08 18:24:32,600 INFO L112 eAbstractionObserver]: Analyzing ICFG lockfree-3.2_false-valid-memtrack.i [2018-12-08 18:24:32,609 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 18:24:32,615 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-12-08 18:24:32,629 INFO L257 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2018-12-08 18:24:32,650 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 18:24:32,650 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 18:24:32,650 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 18:24:32,650 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 18:24:32,650 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 18:24:32,651 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 18:24:32,651 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 18:24:32,651 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 18:24:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2018-12-08 18:24:32,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 18:24:32,671 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:32,672 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:32,674 INFO L423 AbstractCegarLoop]: === Iteration 1 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:32,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:32,678 INFO L82 PathProgramCache]: Analyzing trace with hash -2117844133, now seen corresponding path program 1 times [2018-12-08 18:24:32,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:24:32,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:32,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:32,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:32,714 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:24:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:32,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:32,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 18:24:32,782 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:24:32,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 18:24:32,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 18:24:32,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 18:24:32,795 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 2 states. [2018-12-08 18:24:32,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:32,807 INFO L93 Difference]: Finished difference Result 72 states and 89 transitions. [2018-12-08 18:24:32,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 18:24:32,807 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2018-12-08 18:24:32,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:32,815 INFO L225 Difference]: With dead ends: 72 [2018-12-08 18:24:32,815 INFO L226 Difference]: Without dead ends: 69 [2018-12-08 18:24:32,816 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 18:24:32,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-12-08 18:24:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-12-08 18:24:32,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-12-08 18:24:32,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2018-12-08 18:24:32,839 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 8 [2018-12-08 18:24:32,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:32,839 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2018-12-08 18:24:32,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 18:24:32,839 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2018-12-08 18:24:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 18:24:32,840 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:32,840 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:32,840 INFO L423 AbstractCegarLoop]: === Iteration 2 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:32,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:32,840 INFO L82 PathProgramCache]: Analyzing trace with hash 546068844, now seen corresponding path program 1 times [2018-12-08 18:24:32,840 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:24:32,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:32,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:32,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:32,841 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:24:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:32,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:32,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:32,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 18:24:32,870 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:24:32,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 18:24:32,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 18:24:32,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:32,871 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand 3 states. [2018-12-08 18:24:32,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:32,882 INFO L93 Difference]: Finished difference Result 70 states and 87 transitions. [2018-12-08 18:24:32,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 18:24:32,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-08 18:24:32,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:32,883 INFO L225 Difference]: With dead ends: 70 [2018-12-08 18:24:32,883 INFO L226 Difference]: Without dead ends: 70 [2018-12-08 18:24:32,883 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:32,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-12-08 18:24:32,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-12-08 18:24:32,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-12-08 18:24:32,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 87 transitions. [2018-12-08 18:24:32,887 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 87 transitions. Word has length 10 [2018-12-08 18:24:32,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:32,888 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 87 transitions. [2018-12-08 18:24:32,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 18:24:32,888 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2018-12-08 18:24:32,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 18:24:32,888 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:32,888 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:32,888 INFO L423 AbstractCegarLoop]: === Iteration 3 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:32,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:32,888 INFO L82 PathProgramCache]: Analyzing trace with hash 546128426, now seen corresponding path program 1 times [2018-12-08 18:24:32,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:24:32,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:32,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:32,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:32,889 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:24:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:32,926 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:32,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 18:24:32,927 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:24:32,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 18:24:32,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 18:24:32,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:32,927 INFO L87 Difference]: Start difference. First operand 70 states and 87 transitions. Second operand 3 states. [2018-12-08 18:24:32,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:32,944 INFO L93 Difference]: Finished difference Result 124 states and 159 transitions. [2018-12-08 18:24:32,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 18:24:32,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-08 18:24:32,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:32,945 INFO L225 Difference]: With dead ends: 124 [2018-12-08 18:24:32,945 INFO L226 Difference]: Without dead ends: 124 [2018-12-08 18:24:32,945 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:32,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-08 18:24:32,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 106. [2018-12-08 18:24:32,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-12-08 18:24:32,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 151 transitions. [2018-12-08 18:24:32,953 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 151 transitions. Word has length 10 [2018-12-08 18:24:32,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:32,953 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 151 transitions. [2018-12-08 18:24:32,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 18:24:32,953 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 151 transitions. [2018-12-08 18:24:32,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 18:24:32,953 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:32,953 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:32,953 INFO L423 AbstractCegarLoop]: === Iteration 4 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:32,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:32,954 INFO L82 PathProgramCache]: Analyzing trace with hash -249889490, now seen corresponding path program 1 times [2018-12-08 18:24:32,954 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:24:32,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:32,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:32,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:32,954 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:24:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:32,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:32,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:32,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 18:24:32,984 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:24:32,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 18:24:32,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 18:24:32,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:32,985 INFO L87 Difference]: Start difference. First operand 106 states and 151 transitions. Second operand 3 states. [2018-12-08 18:24:33,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:33,026 INFO L93 Difference]: Finished difference Result 136 states and 194 transitions. [2018-12-08 18:24:33,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 18:24:33,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-12-08 18:24:33,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:33,027 INFO L225 Difference]: With dead ends: 136 [2018-12-08 18:24:33,027 INFO L226 Difference]: Without dead ends: 133 [2018-12-08 18:24:33,027 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 [2018-12-08 18:24:33,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-12-08 18:24:33,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 124. [2018-12-08 18:24:33,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-08 18:24:33,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 181 transitions. [2018-12-08 18:24:33,036 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 181 transitions. Word has length 11 [2018-12-08 18:24:33,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:33,036 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 181 transitions. [2018-12-08 18:24:33,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 18:24:33,036 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 181 transitions. [2018-12-08 18:24:33,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 18:24:33,037 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:33,037 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:33,037 INFO L423 AbstractCegarLoop]: === Iteration 5 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:33,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:33,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1354726454, now seen corresponding path program 1 times [2018-12-08 18:24:33,037 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:24:33,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:33,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:33,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:33,038 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:24:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:33,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:33,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 18:24:33,059 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:24:33,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 18:24:33,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 18:24:33,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:33,060 INFO L87 Difference]: Start difference. First operand 124 states and 181 transitions. Second operand 3 states. [2018-12-08 18:24:33,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:33,119 INFO L93 Difference]: Finished difference Result 210 states and 308 transitions. [2018-12-08 18:24:33,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 18:24:33,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-12-08 18:24:33,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:33,120 INFO L225 Difference]: With dead ends: 210 [2018-12-08 18:24:33,120 INFO L226 Difference]: Without dead ends: 210 [2018-12-08 18:24:33,120 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 [2018-12-08 18:24:33,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-12-08 18:24:33,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 191. [2018-12-08 18:24:33,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-12-08 18:24:33,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 296 transitions. [2018-12-08 18:24:33,128 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 296 transitions. Word has length 13 [2018-12-08 18:24:33,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:33,128 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 296 transitions. [2018-12-08 18:24:33,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 18:24:33,128 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 296 transitions. [2018-12-08 18:24:33,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 18:24:33,129 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:33,129 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:33,129 INFO L423 AbstractCegarLoop]: === Iteration 6 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:33,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:33,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1354726453, now seen corresponding path program 1 times [2018-12-08 18:24:33,129 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:24:33,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:33,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:33,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:33,130 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:24:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:33,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:33,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:33,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 18:24:33,151 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:24:33,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 18:24:33,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 18:24:33,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:33,152 INFO L87 Difference]: Start difference. First operand 191 states and 296 transitions. Second operand 3 states. [2018-12-08 18:24:33,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:33,190 INFO L93 Difference]: Finished difference Result 261 states and 391 transitions. [2018-12-08 18:24:33,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 18:24:33,190 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-12-08 18:24:33,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:33,192 INFO L225 Difference]: With dead ends: 261 [2018-12-08 18:24:33,192 INFO L226 Difference]: Without dead ends: 261 [2018-12-08 18:24:33,192 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 [2018-12-08 18:24:33,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2018-12-08 18:24:33,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 245. [2018-12-08 18:24:33,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2018-12-08 18:24:33,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 380 transitions. [2018-12-08 18:24:33,205 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 380 transitions. Word has length 13 [2018-12-08 18:24:33,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:33,205 INFO L480 AbstractCegarLoop]: Abstraction has 245 states and 380 transitions. [2018-12-08 18:24:33,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 18:24:33,206 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 380 transitions. [2018-12-08 18:24:33,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 18:24:33,206 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:33,206 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:33,207 INFO L423 AbstractCegarLoop]: === Iteration 7 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:33,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:33,207 INFO L82 PathProgramCache]: Analyzing trace with hash 953159977, now seen corresponding path program 1 times [2018-12-08 18:24:33,207 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:24:33,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:33,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:33,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:33,208 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:24:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:33,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:33,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:33,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 18:24:33,240 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:24:33,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 18:24:33,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 18:24:33,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 18:24:33,240 INFO L87 Difference]: Start difference. First operand 245 states and 380 transitions. Second operand 5 states. [2018-12-08 18:24:33,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:33,280 INFO L93 Difference]: Finished difference Result 463 states and 693 transitions. [2018-12-08 18:24:33,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 18:24:33,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-12-08 18:24:33,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:33,282 INFO L225 Difference]: With dead ends: 463 [2018-12-08 18:24:33,282 INFO L226 Difference]: Without dead ends: 463 [2018-12-08 18:24:33,282 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 18:24:33,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2018-12-08 18:24:33,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 437. [2018-12-08 18:24:33,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2018-12-08 18:24:33,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 673 transitions. [2018-12-08 18:24:33,296 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 673 transitions. Word has length 14 [2018-12-08 18:24:33,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:33,296 INFO L480 AbstractCegarLoop]: Abstraction has 437 states and 673 transitions. [2018-12-08 18:24:33,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 18:24:33,296 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 673 transitions. [2018-12-08 18:24:33,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 18:24:33,296 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:33,296 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:33,297 INFO L423 AbstractCegarLoop]: === Iteration 8 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:33,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:33,297 INFO L82 PathProgramCache]: Analyzing trace with hash 2106395152, now seen corresponding path program 1 times [2018-12-08 18:24:33,297 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:24:33,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:33,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:33,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:33,298 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:24:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:33,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:33,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:33,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 18:24:33,322 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:24:33,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 18:24:33,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 18:24:33,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 18:24:33,323 INFO L87 Difference]: Start difference. First operand 437 states and 673 transitions. Second operand 5 states. [2018-12-08 18:24:33,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:33,359 INFO L93 Difference]: Finished difference Result 815 states and 1179 transitions. [2018-12-08 18:24:33,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 18:24:33,360 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-12-08 18:24:33,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:33,362 INFO L225 Difference]: With dead ends: 815 [2018-12-08 18:24:33,362 INFO L226 Difference]: Without dead ends: 815 [2018-12-08 18:24:33,362 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 18:24:33,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2018-12-08 18:24:33,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 785. [2018-12-08 18:24:33,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2018-12-08 18:24:33,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1153 transitions. [2018-12-08 18:24:33,379 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1153 transitions. Word has length 15 [2018-12-08 18:24:33,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:33,380 INFO L480 AbstractCegarLoop]: Abstraction has 785 states and 1153 transitions. [2018-12-08 18:24:33,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 18:24:33,380 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1153 transitions. [2018-12-08 18:24:33,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 18:24:33,380 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:33,381 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:33,381 INFO L423 AbstractCegarLoop]: === Iteration 9 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:33,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:33,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1918113987, now seen corresponding path program 1 times [2018-12-08 18:24:33,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:24:33,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:33,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:33,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:33,382 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:24:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:33,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:33,436 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:24:33,436 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 18:24:33,437 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 23 with the following transitions: [2018-12-08 18:24:33,438 INFO L205 CegarAbsIntRunner]: [48], [49], [56], [59], [61], [65], [67], [70], [84], [98], [100], [101], [104], [105], [108], [146], [147], [148], [149], [151], [152] [2018-12-08 18:24:33,459 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 18:24:33,459 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 18:24:33,621 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 18:24:33,622 INFO L272 AbstractInterpreter]: Visited 21 different actions 37 times. Merged at 9 different actions 9 times. Never widened. Performed 570 root evaluator evaluations with a maximum evaluation depth of 8. Performed 570 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 1 fixpoints after 1 different actions. Largest state had 48 variables. [2018-12-08 18:24:33,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:33,628 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 18:24:33,628 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:24:33,628 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/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 [2018-12-08 18:24:33,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:33,637 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 18:24:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:33,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:24:33,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:33,745 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 18:24:33,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:33,799 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 18:24:33,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2018-12-08 18:24:33,799 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 18:24:33,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 18:24:33,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 18:24:33,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-08 18:24:33,800 INFO L87 Difference]: Start difference. First operand 785 states and 1153 transitions. Second operand 10 states. [2018-12-08 18:24:33,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:33,997 INFO L93 Difference]: Finished difference Result 2565 states and 3813 transitions. [2018-12-08 18:24:33,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 18:24:33,997 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-12-08 18:24:33,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:34,004 INFO L225 Difference]: With dead ends: 2565 [2018-12-08 18:24:34,004 INFO L226 Difference]: Without dead ends: 2565 [2018-12-08 18:24:34,004 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2018-12-08 18:24:34,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2018-12-08 18:24:34,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2429. [2018-12-08 18:24:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2429 states. [2018-12-08 18:24:34,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 3563 transitions. [2018-12-08 18:24:34,075 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 3563 transitions. Word has length 22 [2018-12-08 18:24:34,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:34,075 INFO L480 AbstractCegarLoop]: Abstraction has 2429 states and 3563 transitions. [2018-12-08 18:24:34,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 18:24:34,076 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 3563 transitions. [2018-12-08 18:24:34,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 18:24:34,076 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:34,076 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:34,077 INFO L423 AbstractCegarLoop]: === Iteration 10 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:34,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:34,078 INFO L82 PathProgramCache]: Analyzing trace with hash 897045633, now seen corresponding path program 1 times [2018-12-08 18:24:34,078 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:24:34,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:34,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:34,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:24:34,079 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:24:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 18:24:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 18:24:34,109 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 18:24:34,122 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 18:24:34,131 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch1 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-12-08 18:24:34,132 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch1 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-12-08 18:24:34,133 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch1 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-12-08 18:24:34,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 06:24:34 BoogieIcfgContainer [2018-12-08 18:24:34,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 18:24:34,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 18:24:34,139 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 18:24:34,139 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 18:24:34,140 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:24:32" (3/4) ... [2018-12-08 18:24:34,142 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 18:24:34,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 18:24:34,142 INFO L168 Benchmark]: Toolchain (without parser) took 2111.37 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 230.7 MB). Free memory was 953.5 MB in the beginning and 1.2 GB in the end (delta: -243.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:24:34,143 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:24:34,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-12-08 18:24:34,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:24:34,144 INFO L168 Benchmark]: Boogie Preprocessor took 19.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-08 18:24:34,144 INFO L168 Benchmark]: RCFGBuilder took 270.70 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: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2018-12-08 18:24:34,144 INFO L168 Benchmark]: TraceAbstraction took 1544.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 101.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -118.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:24:34,145 INFO L168 Benchmark]: Witness Printer took 2.76 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:24:34,146 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 270.70 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: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1544.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 101.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -118.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 2.76 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch1 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch1 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch1 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 688]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 688. Possible FailurePath: [L624] struct cell *S; [L625] int pc1 = 1; [L626] int pc4 = 1; [L627] static struct cell *t1 = ((void *)0); [L628] static struct cell *x1 = ((void *)0); [L657] struct cell* garbage; [L658] static struct cell *t4 = ((void *)0); [L659] static struct cell *x4 = ((void *)0); [L662] static int res4; VAL [\old(garbage)=22, \old(garbage)=18, \old(pc1)=13, \old(pc4)=23, \old(res4)=14, \old(S)=10, \old(S)=15, \old(t1)=20, \old(t1)=28, \old(t4)=11, \old(t4)=16, \old(x1)=19, \old(x1)=24, \old(x4)=26, \old(x4)=27, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L690] S || 1 != pc4 || __VERIFIER_nondet_int() [L690] S || 1 != pc4 || __VERIFIER_nondet_int() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, __VERIFIER_nondet_int()=1, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, S || 1 != pc4 || __VERIFIER_nondet_int()=1, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L690] COND TRUE S || 1 != pc4 || __VERIFIER_nondet_int() [L691] COND TRUE __VERIFIER_nondet_int() [L692] CALL push() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L631] pc1++ [L632] case 1: [L633] x1 = malloc(sizeof(*x1)) VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, malloc(sizeof(*x1))={21:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={21:0}, x4={0:0}] [L634] x1->data = 0 VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, malloc(sizeof(*x1))={21:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={21:0}, x4={0:0}] [L635] x1->next = ((void *)0) VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, malloc(sizeof(*x1))={21:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={21:0}, x4={0:0}] [L692] RET push() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={21:0}, x4={0:0}] [L690] S || 1 != pc4 || __VERIFIER_nondet_int() [L690] S || 1 != pc4 || __VERIFIER_nondet_int() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, __VERIFIER_nondet_int()=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, S || 1 != pc4 || __VERIFIER_nondet_int()=0, t1={0:0}, t4={0:0}, x1={21:0}, x4={0:0}] [L690] COND FALSE !(S || 1 != pc4 || __VERIFIER_nondet_int()) [L696] COND FALSE !(\read(*garbage)) VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={21:0}, x4={0:0}] [L701] S = ((void *)0) [L702] t1 = ((void *)0) [L703] x1 = ((void *)0) [L704] t4 = ((void *)0) [L705] x4 = ((void *)0) [L706] return !!garbage; VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, \result=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 72 locations, 19 error locations. UNSAFE Result, 1.4s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 832 SDtfs, 716 SDslu, 1200 SDs, 0 SdLazy, 341 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2429occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 254 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 7094 SizeOfPredicates, 11 NumberOfNonLiveVariables, 292 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 18:24:35,422 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 18:24:35,423 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 18:24:35,429 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 18:24:35,430 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 18:24:35,430 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 18:24:35,431 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 18:24:35,431 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 18:24:35,432 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 18:24:35,433 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 18:24:35,433 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 18:24:35,433 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 18:24:35,434 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 18:24:35,434 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 18:24:35,435 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 18:24:35,435 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 18:24:35,436 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 18:24:35,437 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 18:24:35,438 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 18:24:35,439 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 18:24:35,440 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 18:24:35,440 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 18:24:35,442 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 18:24:35,442 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 18:24:35,442 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 18:24:35,443 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 18:24:35,443 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 18:24:35,444 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 18:24:35,444 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 18:24:35,444 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 18:24:35,445 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 18:24:35,445 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 18:24:35,445 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 18:24:35,445 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 18:24:35,445 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 18:24:35,446 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 18:24:35,446 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2018-12-08 18:24:35,455 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 18:24:35,455 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 18:24:35,456 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 18:24:35,456 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 18:24:35,456 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 18:24:35,457 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 18:24:35,457 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 18:24:35,457 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 18:24:35,457 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 18:24:35,457 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 18:24:35,458 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 18:24:35,458 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 18:24:35,458 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 18:24:35,458 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 18:24:35,458 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 18:24:35,458 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 18:24:35,458 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 18:24:35,459 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 18:24:35,459 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 18:24:35,459 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 18:24:35,459 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 18:24:35,459 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 18:24:35,459 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 18:24:35,459 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 18:24:35,460 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 18:24:35,460 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 18:24:35,460 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 18:24:35,460 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 18:24:35,460 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 18:24:35,460 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 18:24:35,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 18:24:35,460 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 18:24:35,461 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 18:24:35,461 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 18:24:35,461 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 18:24:35,461 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 18:24:35,461 INFO L133 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/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 -> 1cdc9955d0f744a8bccc682f75e63a6c9ebbfe78 [2018-12-08 18:24:35,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 18:24:35,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 18:24:35,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 18:24:35,496 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 18:24:35,496 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 18:24:35,496 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/../../sv-benchmarks/c/memsafety/lockfree-3.2_false-valid-memtrack.i [2018-12-08 18:24:35,533 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/data/91a37745e/03f6838829434a9f9f1dbbca6c39124d/FLAGfd13d6f2d [2018-12-08 18:24:35,904 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 18:24:35,904 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/sv-benchmarks/c/memsafety/lockfree-3.2_false-valid-memtrack.i [2018-12-08 18:24:35,910 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/data/91a37745e/03f6838829434a9f9f1dbbca6c39124d/FLAGfd13d6f2d [2018-12-08 18:24:35,917 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/data/91a37745e/03f6838829434a9f9f1dbbca6c39124d [2018-12-08 18:24:35,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 18:24:35,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 18:24:35,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 18:24:35,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 18:24:35,922 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 18:24:35,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 06:24:35" (1/1) ... [2018-12-08 18:24:35,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f01457b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:35, skipping insertion in model container [2018-12-08 18:24:35,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 06:24:35" (1/1) ... [2018-12-08 18:24:35,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 18:24:35,954 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 18:24:36,117 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 18:24:36,125 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 18:24:36,195 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 18:24:36,228 INFO L195 MainTranslator]: Completed translation [2018-12-08 18:24:36,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:36 WrapperNode [2018-12-08 18:24:36,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 18:24:36,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 18:24:36,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 18:24:36,229 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 18:24:36,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:36" (1/1) ... [2018-12-08 18:24:36,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:36" (1/1) ... [2018-12-08 18:24:36,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 18:24:36,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 18:24:36,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 18:24:36,247 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 18:24:36,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:36" (1/1) ... [2018-12-08 18:24:36,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:36" (1/1) ... [2018-12-08 18:24:36,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:36" (1/1) ... [2018-12-08 18:24:36,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:36" (1/1) ... [2018-12-08 18:24:36,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:36" (1/1) ... [2018-12-08 18:24:36,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:36" (1/1) ... [2018-12-08 18:24:36,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:36" (1/1) ... [2018-12-08 18:24:36,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 18:24:36,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 18:24:36,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 18:24:36,268 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 18:24:36,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/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 [2018-12-08 18:24:36,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 18:24:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 18:24:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure push [2018-12-08 18:24:36,299 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2018-12-08 18:24:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2018-12-08 18:24:36,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2018-12-08 18:24:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 18:24:36,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 18:24:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 18:24:36,299 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 18:24:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 18:24:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 18:24:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 18:24:36,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 18:24:36,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 18:24:36,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 18:24:36,571 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 18:24:36,572 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 18:24:36,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:24:36 BoogieIcfgContainer [2018-12-08 18:24:36,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 18:24:36,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 18:24:36,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 18:24:36,574 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 18:24:36,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 06:24:35" (1/3) ... [2018-12-08 18:24:36,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f42a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 06:24:36, skipping insertion in model container [2018-12-08 18:24:36,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:24:36" (2/3) ... [2018-12-08 18:24:36,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f42a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 06:24:36, skipping insertion in model container [2018-12-08 18:24:36,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:24:36" (3/3) ... [2018-12-08 18:24:36,576 INFO L112 eAbstractionObserver]: Analyzing ICFG lockfree-3.2_false-valid-memtrack.i [2018-12-08 18:24:36,582 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 18:24:36,586 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-12-08 18:24:36,598 INFO L257 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2018-12-08 18:24:36,613 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 18:24:36,613 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 18:24:36,614 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 18:24:36,614 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 18:24:36,614 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 18:24:36,614 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 18:24:36,614 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 18:24:36,614 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 18:24:36,614 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 18:24:36,622 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2018-12-08 18:24:36,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 18:24:36,627 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:36,628 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:36,629 INFO L423 AbstractCegarLoop]: === Iteration 1 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:36,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:36,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1439294725, now seen corresponding path program 1 times [2018-12-08 18:24:36,634 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 18:24:36,634 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 18:24:36,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:36,700 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:24:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:36,713 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 18:24:36,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:36,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 18:24:36,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 18:24:36,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 18:24:36,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 18:24:36,727 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 2 states. [2018-12-08 18:24:36,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:36,739 INFO L93 Difference]: Finished difference Result 70 states and 86 transitions. [2018-12-08 18:24:36,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 18:24:36,740 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2018-12-08 18:24:36,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:36,747 INFO L225 Difference]: With dead ends: 70 [2018-12-08 18:24:36,747 INFO L226 Difference]: Without dead ends: 67 [2018-12-08 18:24:36,748 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 18:24:36,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-12-08 18:24:36,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-12-08 18:24:36,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-12-08 18:24:36,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 83 transitions. [2018-12-08 18:24:36,772 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 83 transitions. Word has length 8 [2018-12-08 18:24:36,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:36,772 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 83 transitions. [2018-12-08 18:24:36,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 18:24:36,773 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 83 transitions. [2018-12-08 18:24:36,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 18:24:36,773 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:36,773 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:36,773 INFO L423 AbstractCegarLoop]: === Iteration 2 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:36,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:36,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1439306257, now seen corresponding path program 1 times [2018-12-08 18:24:36,774 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 18:24:36,774 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 18:24:36,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:36,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:24:36,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:36,833 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 18:24:36,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:36,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 18:24:36,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 18:24:36,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 18:24:36,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:36,836 INFO L87 Difference]: Start difference. First operand 67 states and 83 transitions. Second operand 3 states. [2018-12-08 18:24:36,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:36,868 INFO L93 Difference]: Finished difference Result 118 states and 151 transitions. [2018-12-08 18:24:36,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 18:24:36,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-08 18:24:36,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:36,870 INFO L225 Difference]: With dead ends: 118 [2018-12-08 18:24:36,870 INFO L226 Difference]: Without dead ends: 118 [2018-12-08 18:24:36,870 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:36,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-12-08 18:24:36,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2018-12-08 18:24:36,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-12-08 18:24:36,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2018-12-08 18:24:36,879 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 8 [2018-12-08 18:24:36,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:36,879 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2018-12-08 18:24:36,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 18:24:36,879 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2018-12-08 18:24:36,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 18:24:36,879 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:36,879 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:36,880 INFO L423 AbstractCegarLoop]: === Iteration 3 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:36,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:36,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1668822526, now seen corresponding path program 1 times [2018-12-08 18:24:36,880 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 18:24:36,880 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 18:24:36,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:36,923 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:24:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:36,927 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 18:24:36,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:36,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 18:24:36,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 18:24:36,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 18:24:36,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:36,929 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand 3 states. [2018-12-08 18:24:37,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:37,015 INFO L93 Difference]: Finished difference Result 124 states and 178 transitions. [2018-12-08 18:24:37,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 18:24:37,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-08 18:24:37,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:37,017 INFO L225 Difference]: With dead ends: 124 [2018-12-08 18:24:37,017 INFO L226 Difference]: Without dead ends: 121 [2018-12-08 18:24:37,017 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:37,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-08 18:24:37,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 113. [2018-12-08 18:24:37,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-12-08 18:24:37,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 166 transitions. [2018-12-08 18:24:37,024 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 166 transitions. Word has length 9 [2018-12-08 18:24:37,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:37,025 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 166 transitions. [2018-12-08 18:24:37,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 18:24:37,025 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 166 transitions. [2018-12-08 18:24:37,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 18:24:37,025 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:37,025 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:37,025 INFO L423 AbstractCegarLoop]: === Iteration 4 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:37,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:37,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1669734080, now seen corresponding path program 1 times [2018-12-08 18:24:37,026 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 18:24:37,026 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 18:24:37,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:37,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:24:37,132 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 [2018-12-08 18:24:37,133 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 18:24:37,135 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 18:24:37,135 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-08 18:24:37,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:37,139 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 18:24:37,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:37,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 18:24:37,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 18:24:37,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 18:24:37,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:37,141 INFO L87 Difference]: Start difference. First operand 113 states and 166 transitions. Second operand 3 states. [2018-12-08 18:24:37,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:37,254 INFO L93 Difference]: Finished difference Result 194 states and 286 transitions. [2018-12-08 18:24:37,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 18:24:37,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-12-08 18:24:37,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:37,255 INFO L225 Difference]: With dead ends: 194 [2018-12-08 18:24:37,256 INFO L226 Difference]: Without dead ends: 194 [2018-12-08 18:24:37,256 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:37,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-12-08 18:24:37,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 175. [2018-12-08 18:24:37,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-12-08 18:24:37,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 274 transitions. [2018-12-08 18:24:37,266 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 274 transitions. Word has length 11 [2018-12-08 18:24:37,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:37,266 INFO L480 AbstractCegarLoop]: Abstraction has 175 states and 274 transitions. [2018-12-08 18:24:37,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 18:24:37,266 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 274 transitions. [2018-12-08 18:24:37,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 18:24:37,267 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:37,267 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:37,267 INFO L423 AbstractCegarLoop]: === Iteration 5 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:37,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:37,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1669734079, now seen corresponding path program 1 times [2018-12-08 18:24:37,267 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 18:24:37,268 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 18:24:37,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:37,354 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:24:37,359 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 [2018-12-08 18:24:37,360 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 18:24:37,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 18:24:37,367 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-12-08 18:24:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:37,375 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 18:24:37,376 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:37,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 18:24:37,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 18:24:37,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 18:24:37,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:37,377 INFO L87 Difference]: Start difference. First operand 175 states and 274 transitions. Second operand 3 states. [2018-12-08 18:24:37,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:37,503 INFO L93 Difference]: Finished difference Result 245 states and 369 transitions. [2018-12-08 18:24:37,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 18:24:37,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-12-08 18:24:37,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:37,505 INFO L225 Difference]: With dead ends: 245 [2018-12-08 18:24:37,505 INFO L226 Difference]: Without dead ends: 245 [2018-12-08 18:24:37,506 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 18:24:37,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-12-08 18:24:37,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 229. [2018-12-08 18:24:37,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-12-08 18:24:37,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 358 transitions. [2018-12-08 18:24:37,515 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 358 transitions. Word has length 11 [2018-12-08 18:24:37,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:37,515 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 358 transitions. [2018-12-08 18:24:37,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 18:24:37,515 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 358 transitions. [2018-12-08 18:24:37,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 18:24:37,516 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:37,516 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:37,516 INFO L423 AbstractCegarLoop]: === Iteration 6 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:37,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:37,516 INFO L82 PathProgramCache]: Analyzing trace with hash -222141844, now seen corresponding path program 1 times [2018-12-08 18:24:37,516 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 18:24:37,516 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 18:24:37,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:37,559 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:24:37,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:37,568 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 18:24:37,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:37,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 18:24:37,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 18:24:37,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 18:24:37,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 18:24:37,570 INFO L87 Difference]: Start difference. First operand 229 states and 358 transitions. Second operand 4 states. [2018-12-08 18:24:37,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:37,597 INFO L93 Difference]: Finished difference Result 208 states and 294 transitions. [2018-12-08 18:24:37,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 18:24:37,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-08 18:24:37,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:37,598 INFO L225 Difference]: With dead ends: 208 [2018-12-08 18:24:37,598 INFO L226 Difference]: Without dead ends: 208 [2018-12-08 18:24:37,598 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 18:24:37,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-12-08 18:24:37,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 179. [2018-12-08 18:24:37,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-12-08 18:24:37,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 269 transitions. [2018-12-08 18:24:37,605 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 269 transitions. Word has length 12 [2018-12-08 18:24:37,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:37,606 INFO L480 AbstractCegarLoop]: Abstraction has 179 states and 269 transitions. [2018-12-08 18:24:37,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 18:24:37,606 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 269 transitions. [2018-12-08 18:24:37,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 18:24:37,606 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:37,606 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:37,606 INFO L423 AbstractCegarLoop]: === Iteration 7 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:37,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:37,607 INFO L82 PathProgramCache]: Analyzing trace with hash 38457197, now seen corresponding path program 1 times [2018-12-08 18:24:37,607 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 18:24:37,607 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 18:24:37,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:24:37,649 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:24:37,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:24:37,660 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 18:24:37,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:24:37,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 18:24:37,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 18:24:37,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 18:24:37,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 18:24:37,662 INFO L87 Difference]: Start difference. First operand 179 states and 269 transitions. Second operand 4 states. [2018-12-08 18:24:37,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:24:37,687 INFO L93 Difference]: Finished difference Result 279 states and 402 transitions. [2018-12-08 18:24:37,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 18:24:37,687 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-12-08 18:24:37,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:24:37,688 INFO L225 Difference]: With dead ends: 279 [2018-12-08 18:24:37,688 INFO L226 Difference]: Without dead ends: 279 [2018-12-08 18:24:37,689 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 18:24:37,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-12-08 18:24:37,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2018-12-08 18:24:37,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2018-12-08 18:24:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 402 transitions. [2018-12-08 18:24:37,698 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 402 transitions. Word has length 13 [2018-12-08 18:24:37,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:24:37,699 INFO L480 AbstractCegarLoop]: Abstraction has 279 states and 402 transitions. [2018-12-08 18:24:37,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 18:24:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 402 transitions. [2018-12-08 18:24:37,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 18:24:37,700 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:24:37,700 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:24:37,700 INFO L423 AbstractCegarLoop]: === Iteration 8 === [popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, pushErr3REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2018-12-08 18:24:37,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:24:37,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1717494497, now seen corresponding path program 1 times [2018-12-08 18:24:37,701 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 18:24:37,701 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03916cda-5cda-4190-a325-b5f4dcc3bf87/bin-2019/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 18:24:37,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:24:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 18:24:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 18:24:37,922 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 18:24:37,936 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 18:24:37,943 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,943 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,944 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,944 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,944 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,944 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,944 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,944 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,945 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,945 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,945 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,945 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,946 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,946 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,946 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,946 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,947 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,947 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,947 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,947 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,947 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,947 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,947 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,948 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,948 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,948 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,948 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,948 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,949 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,949 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch1 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-12-08 18:24:37,949 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,949 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,949 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,949 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,949 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,949 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,950 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,950 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,950 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch1 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-12-08 18:24:37,950 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,950 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,950 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,951 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,951 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,951 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,951 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,951 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,951 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,951 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,951 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,952 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,952 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,952 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,952 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,952 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch1 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-12-08 18:24:37,952 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,952 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,953 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,953 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,953 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,953 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,953 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,953 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,953 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,954 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,954 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,954 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,954 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,954 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,954 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,954 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,954 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,955 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,955 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,955 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,955 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,955 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,955 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,956 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,956 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,956 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,956 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,956 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,956 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,956 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,956 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,956 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,957 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,957 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,957 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,957 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,957 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,957 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,957 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,958 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,958 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,958 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,958 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,958 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2018-12-08 18:24:37,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 06:24:37 BoogieIcfgContainer [2018-12-08 18:24:37,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 18:24:37,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 18:24:37,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 18:24:37,962 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 18:24:37,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:24:36" (3/4) ... [2018-12-08 18:24:37,965 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 18:24:37,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 18:24:37,965 INFO L168 Benchmark]: Toolchain (without parser) took 2046.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 938.0 MB in the beginning and 882.1 MB in the end (delta: 55.9 MB). Peak memory consumption was 210.1 MB. Max. memory is 11.5 GB. [2018-12-08 18:24:37,966 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:24:37,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2018-12-08 18:24:37,967 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:24:37,967 INFO L168 Benchmark]: Boogie Preprocessor took 20.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:24:37,967 INFO L168 Benchmark]: RCFGBuilder took 303.98 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: 38.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 11.5 GB. [2018-12-08 18:24:37,967 INFO L168 Benchmark]: TraceAbstraction took 1389.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.1 MB in the end (delta: 214.5 MB). Peak memory consumption was 214.5 MB. Max. memory is 11.5 GB. [2018-12-08 18:24:37,968 INFO L168 Benchmark]: Witness Printer took 2.60 ms. Allocated memory is still 1.2 GB. Free memory is still 882.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:24:37,969 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 303.98 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: 38.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1389.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.1 MB in the end (delta: 214.5 MB). Peak memory consumption was 214.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.60 ms. Allocated memory is still 1.2 GB. Free memory is still 882.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch1 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch1 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch1 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 688]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 688. Possible FailurePath: [L624] struct cell *S; [L625] int pc1 = 1; [L626] int pc4 = 1; [L627] static struct cell *t1 = ((void *)0); [L628] static struct cell *x1 = ((void *)0); [L657] struct cell* garbage; [L658] static struct cell *t4 = ((void *)0); [L659] static struct cell *x4 = ((void *)0); [L662] static int res4; VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=0, \old(pc4)=0, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L690] COND TRUE S || 1 != pc4 || __VERIFIER_nondet_int() [L691] COND TRUE __VERIFIER_nondet_int() [L692] CALL push() VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L631] pc1++ [L632] case 1: [L633] x1 = malloc(sizeof(*x1)) VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, malloc(sizeof(*x1))={-2147483648:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-2147483648:0}, x4={0:0}] [L634] x1->data = 0 VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, malloc(sizeof(*x1))={-2147483648:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-2147483648:0}, x4={0:0}] [L635] x1->next = ((void *)0) VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, malloc(sizeof(*x1))={-2147483648:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-2147483648:0}, x4={0:0}] [L692] RET push() VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-2147483648:0}, x4={0:0}] [L690] COND FALSE !(S || 1 != pc4 || __VERIFIER_nondet_int()) [L696] COND FALSE !(\read(*garbage)) VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-2147483648:0}, x4={0:0}] [L701] S = ((void *)0) [L702] t1 = ((void *)0) [L703] x1 = ((void *)0) [L704] t4 = ((void *)0) [L705] x4 = ((void *)0) [L706] return !!garbage; VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, \result=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 70 locations, 19 error locations. UNSAFE Result, 1.3s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 647 SDtfs, 376 SDslu, 430 SDs, 0 SdLazy, 144 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 90 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 1685 SizeOfPredicates, 13 NumberOfNonLiveVariables, 877 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...