./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db17479a00afa98e4ce70a37e790a923b748e4dc ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db17479a00afa98e4ce70a37e790a923b748e4dc ...................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:27,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:27,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:27,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:27,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:27,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:27,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:27,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:27,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:27,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:27,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:27,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:27,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:27,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:27,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:27,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:27,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:27,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:27,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:27,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:27,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:27,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:27,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:27,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:27,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:27,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:27,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:27,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:27,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:27,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:27,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:27,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:27,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:27,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:27,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:27,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:27,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:27,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:27,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:27,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:27,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:27,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:25:27,330 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:27,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:27,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:27,331 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:27,332 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:27,332 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:27,332 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:27,332 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:27,332 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:27,333 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:27,333 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:27,333 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:27,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:25:27,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:25:27,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:27,334 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:27,334 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:25:27,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:27,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:27,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:27,335 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:25:27,335 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:25:27,336 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:25:27,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:27,336 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:27,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:27,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:27,337 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:27,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:27,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:27,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:27,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:27,338 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:27,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:27,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:27,338 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db17479a00afa98e4ce70a37e790a923b748e4dc [2019-10-22 11:25:27,367 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:27,378 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:27,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:27,385 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:27,385 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:27,386 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/../../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2019-10-22 11:25:27,445 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/data/8b5853b74/c6414cb12f0f4baba08ba599876c9df0/FLAGdb28eff98 [2019-10-22 11:25:27,902 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:27,904 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2019-10-22 11:25:27,920 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/data/8b5853b74/c6414cb12f0f4baba08ba599876c9df0/FLAGdb28eff98 [2019-10-22 11:25:28,415 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/data/8b5853b74/c6414cb12f0f4baba08ba599876c9df0 [2019-10-22 11:25:28,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:28,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:28,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:28,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:28,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:28,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:28" (1/1) ... [2019-10-22 11:25:28,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3adbc12a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28, skipping insertion in model container [2019-10-22 11:25:28,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:28" (1/1) ... [2019-10-22 11:25:28,434 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:28,471 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:28,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:28,818 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:28,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:28,900 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:28,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28 WrapperNode [2019-10-22 11:25:28,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:28,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:28,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:28,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:28,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28" (1/1) ... [2019-10-22 11:25:28,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28" (1/1) ... [2019-10-22 11:25:28,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:28,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:28,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:28,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:28,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28" (1/1) ... [2019-10-22 11:25:28,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28" (1/1) ... [2019-10-22 11:25:28,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28" (1/1) ... [2019-10-22 11:25:28,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28" (1/1) ... [2019-10-22 11:25:28,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28" (1/1) ... [2019-10-22 11:25:29,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28" (1/1) ... [2019-10-22 11:25:29,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28" (1/1) ... [2019-10-22 11:25:29,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:29,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:29,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:29,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:29,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:25:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:25:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:25:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:25:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:25:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:25:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:29,656 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:29,657 INFO L284 CfgBuilder]: Removed 26 assume(true) statements. [2019-10-22 11:25:29,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:29 BoogieIcfgContainer [2019-10-22 11:25:29,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:29,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:29,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:29,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:29,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:28" (1/3) ... [2019-10-22 11:25:29,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf00ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:29, skipping insertion in model container [2019-10-22 11:25:29,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:28" (2/3) ... [2019-10-22 11:25:29,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf00ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:29, skipping insertion in model container [2019-10-22 11:25:29,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:29" (3/3) ... [2019-10-22 11:25:29,666 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_update_all_reverse.i [2019-10-22 11:25:29,675 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:29,683 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2019-10-22 11:25:29,694 INFO L249 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2019-10-22 11:25:29,714 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:29,714 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:25:29,714 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:29,714 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:29,714 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:29,714 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:29,714 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:29,714 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:29,731 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-10-22 11:25:29,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:25:29,738 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:29,739 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:25:29,741 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12REQUIRES_VIOLATION]=== [2019-10-22 11:25:29,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:29,747 INFO L82 PathProgramCache]: Analyzing trace with hash 925702, now seen corresponding path program 1 times [2019-10-22 11:25:29,756 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:29,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858479666] [2019-10-22 11:25:29,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:29,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:29,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:29,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:29,905 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858479666] [2019-10-22 11:25:29,906 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:29,906 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:29,907 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116608602] [2019-10-22 11:25:29,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:29,913 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:29,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:29,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:29,931 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2019-10-22 11:25:30,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:30,045 INFO L93 Difference]: Finished difference Result 103 states and 111 transitions. [2019-10-22 11:25:30,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:30,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-10-22 11:25:30,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:30,057 INFO L225 Difference]: With dead ends: 103 [2019-10-22 11:25:30,057 INFO L226 Difference]: Without dead ends: 96 [2019-10-22 11:25:30,059 INFO L600 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 [2019-10-22 11:25:30,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-10-22 11:25:30,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 76. [2019-10-22 11:25:30,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-10-22 11:25:30,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2019-10-22 11:25:30,097 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 4 [2019-10-22 11:25:30,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:30,097 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2019-10-22 11:25:30,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:30,097 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2019-10-22 11:25:30,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:25:30,098 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:30,098 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:25:30,098 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12REQUIRES_VIOLATION]=== [2019-10-22 11:25:30,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:30,099 INFO L82 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2019-10-22 11:25:30,099 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:30,099 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511793837] [2019-10-22 11:25:30,099 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:30,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:30,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:30,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:30,168 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511793837] [2019-10-22 11:25:30,168 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:30,168 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:30,169 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564042436] [2019-10-22 11:25:30,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:30,170 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:30,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:30,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:30,171 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand 3 states. [2019-10-22 11:25:30,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:30,229 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2019-10-22 11:25:30,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:30,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-10-22 11:25:30,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:30,230 INFO L225 Difference]: With dead ends: 72 [2019-10-22 11:25:30,231 INFO L226 Difference]: Without dead ends: 72 [2019-10-22 11:25:30,231 INFO L600 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 [2019-10-22 11:25:30,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-22 11:25:30,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-10-22 11:25:30,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-22 11:25:30,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 78 transitions. [2019-10-22 11:25:30,237 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 78 transitions. Word has length 4 [2019-10-22 11:25:30,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:30,238 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 78 transitions. [2019-10-22 11:25:30,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:30,238 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 78 transitions. [2019-10-22 11:25:30,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:25:30,238 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:30,239 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:30,239 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12REQUIRES_VIOLATION]=== [2019-10-22 11:25:30,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:30,240 INFO L82 PathProgramCache]: Analyzing trace with hash 2097994085, now seen corresponding path program 1 times [2019-10-22 11:25:30,240 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:30,240 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99357256] [2019-10-22 11:25:30,240 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:30,240 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:30,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:30,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99357256] [2019-10-22 11:25:30,280 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:30,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:25:30,281 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806243714] [2019-10-22 11:25:30,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:30,281 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:30,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:30,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:30,282 INFO L87 Difference]: Start difference. First operand 72 states and 78 transitions. Second operand 3 states. [2019-10-22 11:25:30,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:30,295 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2019-10-22 11:25:30,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:30,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 11:25:30,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:30,296 INFO L225 Difference]: With dead ends: 82 [2019-10-22 11:25:30,296 INFO L226 Difference]: Without dead ends: 82 [2019-10-22 11:25:30,297 INFO L600 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 [2019-10-22 11:25:30,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-10-22 11:25:30,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 73. [2019-10-22 11:25:30,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-10-22 11:25:30,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 79 transitions. [2019-10-22 11:25:30,303 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 79 transitions. Word has length 9 [2019-10-22 11:25:30,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:30,303 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 79 transitions. [2019-10-22 11:25:30,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 79 transitions. [2019-10-22 11:25:30,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:25:30,304 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:30,304 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:30,304 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12REQUIRES_VIOLATION]=== [2019-10-22 11:25:30,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:30,305 INFO L82 PathProgramCache]: Analyzing trace with hash 231455864, now seen corresponding path program 1 times [2019-10-22 11:25:30,305 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:30,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106633768] [2019-10-22 11:25:30,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:30,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:30,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:30,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:30,384 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106633768] [2019-10-22 11:25:30,384 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:30,384 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:30,384 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822752667] [2019-10-22 11:25:30,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:30,385 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:30,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:30,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:30,386 INFO L87 Difference]: Start difference. First operand 73 states and 79 transitions. Second operand 5 states. [2019-10-22 11:25:30,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:30,536 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2019-10-22 11:25:30,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:30,537 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-22 11:25:30,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:30,538 INFO L225 Difference]: With dead ends: 97 [2019-10-22 11:25:30,538 INFO L226 Difference]: Without dead ends: 97 [2019-10-22 11:25:30,538 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:25:30,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-10-22 11:25:30,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 72. [2019-10-22 11:25:30,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-22 11:25:30,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 78 transitions. [2019-10-22 11:25:30,544 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 78 transitions. Word has length 14 [2019-10-22 11:25:30,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:30,544 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 78 transitions. [2019-10-22 11:25:30,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:30,544 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 78 transitions. [2019-10-22 11:25:30,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:25:30,545 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:30,545 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:30,545 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12REQUIRES_VIOLATION]=== [2019-10-22 11:25:30,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:30,546 INFO L82 PathProgramCache]: Analyzing trace with hash 231455865, now seen corresponding path program 1 times [2019-10-22 11:25:30,546 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:30,546 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479584838] [2019-10-22 11:25:30,546 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:30,546 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:30,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:30,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479584838] [2019-10-22 11:25:30,630 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:30,630 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:30,630 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241591011] [2019-10-22 11:25:30,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:30,631 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:30,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:30,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:30,631 INFO L87 Difference]: Start difference. First operand 72 states and 78 transitions. Second operand 5 states. [2019-10-22 11:25:30,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:30,762 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2019-10-22 11:25:30,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:30,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-22 11:25:30,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:30,763 INFO L225 Difference]: With dead ends: 76 [2019-10-22 11:25:30,763 INFO L226 Difference]: Without dead ends: 76 [2019-10-22 11:25:30,764 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:25:30,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-10-22 11:25:30,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2019-10-22 11:25:30,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-10-22 11:25:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2019-10-22 11:25:30,774 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 14 [2019-10-22 11:25:30,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:30,774 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2019-10-22 11:25:30,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:30,774 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2019-10-22 11:25:30,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:25:30,775 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:30,775 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:30,775 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12REQUIRES_VIOLATION]=== [2019-10-22 11:25:30,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:30,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1879150547, now seen corresponding path program 1 times [2019-10-22 11:25:30,776 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:30,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865835784] [2019-10-22 11:25:30,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:30,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:30,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:30,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:25:30,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865835784] [2019-10-22 11:25:30,915 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:30,915 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:25:30,915 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754797460] [2019-10-22 11:25:30,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:25:30,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:30,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:25:30,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:25:30,917 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand 6 states. [2019-10-22 11:25:31,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:31,044 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2019-10-22 11:25:31,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:31,045 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-10-22 11:25:31,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:31,046 INFO L225 Difference]: With dead ends: 90 [2019-10-22 11:25:31,046 INFO L226 Difference]: Without dead ends: 90 [2019-10-22 11:25:31,046 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:31,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-10-22 11:25:31,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 70. [2019-10-22 11:25:31,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-10-22 11:25:31,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 76 transitions. [2019-10-22 11:25:31,051 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 76 transitions. Word has length 17 [2019-10-22 11:25:31,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:31,052 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 76 transitions. [2019-10-22 11:25:31,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:31,052 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 76 transitions. [2019-10-22 11:25:31,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:25:31,053 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:31,053 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:31,053 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12REQUIRES_VIOLATION]=== [2019-10-22 11:25:31,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:31,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1879150548, now seen corresponding path program 1 times [2019-10-22 11:25:31,054 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:31,054 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521829485] [2019-10-22 11:25:31,054 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:31,055 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:31,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:31,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521829485] [2019-10-22 11:25:31,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339406987] [2019-10-22 11:25:31,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:31,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-22 11:25:31,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:31,324 INFO L375 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 [2019-10-22 11:25:31,327 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:25:31,331 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:25:31,331 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:25:31,332 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-10-22 11:25:31,432 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:25:31,432 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 33 [2019-10-22 11:25:31,433 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:25:31,456 INFO L567 ElimStorePlain]: treesize reduction 14, result has 54.8 percent of original size [2019-10-22 11:25:31,457 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 11:25:31,458 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:17 [2019-10-22 11:25:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:25:31,486 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:31,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:25:31,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:31,674 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-22 11:25:31,674 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 15 [2019-10-22 11:25:31,674 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764648245] [2019-10-22 11:25:31,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:25:31,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:31,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:25:31,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:25:31,676 INFO L87 Difference]: Start difference. First operand 70 states and 76 transitions. Second operand 6 states. [2019-10-22 11:25:31,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:31,833 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2019-10-22 11:25:31,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:31,834 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-10-22 11:25:31,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:31,834 INFO L225 Difference]: With dead ends: 69 [2019-10-22 11:25:31,835 INFO L226 Difference]: Without dead ends: 69 [2019-10-22 11:25:31,835 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2019-10-22 11:25:31,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-10-22 11:25:31,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2019-10-22 11:25:31,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-10-22 11:25:31,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2019-10-22 11:25:31,838 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 17 [2019-10-22 11:25:31,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:31,839 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2019-10-22 11:25:31,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:31,839 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2019-10-22 11:25:31,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:25:31,843 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:31,843 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:32,043 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:32,044 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12REQUIRES_VIOLATION]=== [2019-10-22 11:25:32,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:32,044 INFO L82 PathProgramCache]: Analyzing trace with hash -687020393, now seen corresponding path program 1 times [2019-10-22 11:25:32,044 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:32,045 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706703369] [2019-10-22 11:25:32,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:32,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:32,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:32,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:32,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706703369] [2019-10-22 11:25:32,201 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:32,201 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 11:25:32,201 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866980430] [2019-10-22 11:25:32,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:25:32,202 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:32,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:25:32,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:32,202 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 9 states. [2019-10-22 11:25:32,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:32,545 INFO L93 Difference]: Finished difference Result 140 states and 151 transitions. [2019-10-22 11:25:32,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 11:25:32,545 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2019-10-22 11:25:32,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:32,546 INFO L225 Difference]: With dead ends: 140 [2019-10-22 11:25:32,546 INFO L226 Difference]: Without dead ends: 140 [2019-10-22 11:25:32,547 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2019-10-22 11:25:32,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-10-22 11:25:32,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 72. [2019-10-22 11:25:32,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-22 11:25:32,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2019-10-22 11:25:32,551 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 22 [2019-10-22 11:25:32,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:32,551 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2019-10-22 11:25:32,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:25:32,555 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2019-10-22 11:25:32,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:25:32,556 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:32,556 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:32,556 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12REQUIRES_VIOLATION]=== [2019-10-22 11:25:32,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:32,557 INFO L82 PathProgramCache]: Analyzing trace with hash -687020392, now seen corresponding path program 1 times [2019-10-22 11:25:32,557 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:32,557 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059372858] [2019-10-22 11:25:32,557 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:32,557 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:32,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:32,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:32,643 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059372858] [2019-10-22 11:25:32,644 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73373385] [2019-10-22 11:25:32,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:32,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:25:32,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:32,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:25:32,704 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:32,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:25:32,720 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-22 11:25:32,720 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 6 [2019-10-22 11:25:32,720 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273418157] [2019-10-22 11:25:32,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:32,721 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:32,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:32,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:25:32,721 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand 5 states. [2019-10-22 11:25:32,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:32,770 INFO L93 Difference]: Finished difference Result 97 states and 109 transitions. [2019-10-22 11:25:32,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:32,771 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-10-22 11:25:32,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:32,772 INFO L225 Difference]: With dead ends: 97 [2019-10-22 11:25:32,772 INFO L226 Difference]: Without dead ends: 97 [2019-10-22 11:25:32,772 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:32,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-10-22 11:25:32,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 75. [2019-10-22 11:25:32,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-10-22 11:25:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2019-10-22 11:25:32,776 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 22 [2019-10-22 11:25:32,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:32,776 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2019-10-22 11:25:32,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:32,776 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2019-10-22 11:25:32,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:25:32,777 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:32,777 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:32,978 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:32,978 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12REQUIRES_VIOLATION]=== [2019-10-22 11:25:32,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:32,979 INFO L82 PathProgramCache]: Analyzing trace with hash -687020337, now seen corresponding path program 1 times [2019-10-22 11:25:32,979 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:32,979 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397307968] [2019-10-22 11:25:32,979 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:32,979 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:32,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:33,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:33,083 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397307968] [2019-10-22 11:25:33,084 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:33,084 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 11:25:33,084 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598399902] [2019-10-22 11:25:33,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:25:33,084 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:33,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:25:33,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:33,085 INFO L87 Difference]: Start difference. First operand 75 states and 84 transitions. Second operand 9 states. [2019-10-22 11:25:33,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:33,398 INFO L93 Difference]: Finished difference Result 124 states and 135 transitions. [2019-10-22 11:25:33,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 11:25:33,398 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2019-10-22 11:25:33,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:33,399 INFO L225 Difference]: With dead ends: 124 [2019-10-22 11:25:33,399 INFO L226 Difference]: Without dead ends: 124 [2019-10-22 11:25:33,399 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2019-10-22 11:25:33,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-22 11:25:33,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 75. [2019-10-22 11:25:33,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-10-22 11:25:33,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2019-10-22 11:25:33,403 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 22 [2019-10-22 11:25:33,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:33,404 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2019-10-22 11:25:33,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:25:33,404 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2019-10-22 11:25:33,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:25:33,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:33,404 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:33,405 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12REQUIRES_VIOLATION]=== [2019-10-22 11:25:33,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:33,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1503677429, now seen corresponding path program 1 times [2019-10-22 11:25:33,405 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:33,405 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433957495] [2019-10-22 11:25:33,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:33,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:33,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:33,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:33,653 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433957495] [2019-10-22 11:25:33,653 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068207518] [2019-10-22 11:25:33,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:33,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 45 conjunts are in the unsatisfiable core [2019-10-22 11:25:33,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:33,748 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:25:33,749 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-10-22 11:25:33,749 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:25:33,754 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:25:33,755 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:25:33,755 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2019-10-22 11:25:33,764 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-22 11:25:33,765 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:25:33,771 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:25:33,771 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:25:33,771 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:12 [2019-10-22 11:25:33,813 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:25:33,814 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 51 [2019-10-22 11:25:33,815 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:25:33,815 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:25:33,816 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-10-22 11:25:33,835 INFO L567 ElimStorePlain]: treesize reduction 34, result has 46.0 percent of original size [2019-10-22 11:25:33,835 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 11:25:33,836 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:29 [2019-10-22 11:25:34,026 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:25:34,027 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2019-10-22 11:25:34,028 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:25:34,037 INFO L567 ElimStorePlain]: treesize reduction 12, result has 45.5 percent of original size [2019-10-22 11:25:34,038 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:25:34,038 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:5 [2019-10-22 11:25:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:34,041 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:34,060 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:25:34,061 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2019-10-22 11:25:34,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:25:34,062 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:25:34,064 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:25:34,065 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 11:25:34,065 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:15 [2019-10-22 11:25:34,147 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:25:34,161 INFO L567 ElimStorePlain]: treesize reduction 9, result has 55.0 percent of original size [2019-10-22 11:25:34,162 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:25:34,162 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:31, output treesize:3 [2019-10-22 11:25:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:34,221 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [185576701] [2019-10-22 11:25:34,227 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 26 [2019-10-22 11:25:34,271 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:25:34,272 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:25:34,584 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:34,584 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:25:34,588 INFO L168 Benchmark]: Toolchain (without parser) took 6169.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.9 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -190.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:34,589 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:34,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:34,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.06 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:34,590 INFO L168 Benchmark]: Boogie Preprocessor took 52.53 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. [2019-10-22 11:25:34,591 INFO L168 Benchmark]: RCFGBuilder took 650.01 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: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:34,591 INFO L168 Benchmark]: TraceAbstraction took 4928.27 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -56.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:34,593 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 480.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.06 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.53 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 650.01 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: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4928.27 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -56.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:36,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:36,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:36,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:36,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:36,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:36,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:36,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:36,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:36,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:36,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:36,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:36,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:36,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:36,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:36,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:36,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:36,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:36,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:36,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:36,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:36,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:36,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:36,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:36,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:36,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:36,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:36,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:36,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:36,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:36,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:36,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:36,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:36,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:36,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:36,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:36,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:36,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:36,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:36,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:36,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:36,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-10-22 11:25:36,848 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:36,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:36,849 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:36,849 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:36,849 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:36,849 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:36,849 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:36,850 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:36,850 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:36,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:25:36,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:25:36,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:36,851 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:36,851 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:25:36,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:36,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:36,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:36,852 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:25:36,852 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:25:36,852 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:25:36,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:36,852 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:25:36,853 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:25:36,853 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:36,853 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:25:36,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:36,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:36,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:36,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:36,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:36,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:36,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:36,854 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:25:36,854 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:25:36,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:36,855 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db17479a00afa98e4ce70a37e790a923b748e4dc [2019-10-22 11:25:36,898 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:36,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:36,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:36,915 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:36,916 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:36,917 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/../../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2019-10-22 11:25:36,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/data/52e4a2af7/885d5e85ebd344eb89aee13ee2529468/FLAG7df653e34 [2019-10-22 11:25:37,439 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:37,439 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2019-10-22 11:25:37,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/data/52e4a2af7/885d5e85ebd344eb89aee13ee2529468/FLAG7df653e34 [2019-10-22 11:25:37,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/data/52e4a2af7/885d5e85ebd344eb89aee13ee2529468 [2019-10-22 11:25:37,766 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:37,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:37,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:37,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:37,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:37,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204ebfa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37, skipping insertion in model container [2019-10-22 11:25:37,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,783 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:37,816 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:38,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:38,248 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:38,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:38,338 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:38,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38 WrapperNode [2019-10-22 11:25:38,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:38,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:38,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:38,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:38,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:38,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:38,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:38,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:38,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:38,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:38,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:38,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:38,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 11:25:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:25:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:25:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:25:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:25:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:25:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:39,142 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:39,142 INFO L284 CfgBuilder]: Removed 26 assume(true) statements. [2019-10-22 11:25:39,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:39 BoogieIcfgContainer [2019-10-22 11:25:39,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:39,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:39,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:39,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:39,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:37" (1/3) ... [2019-10-22 11:25:39,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@958ab4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:39, skipping insertion in model container [2019-10-22 11:25:39,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (2/3) ... [2019-10-22 11:25:39,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@958ab4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:39, skipping insertion in model container [2019-10-22 11:25:39,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:39" (3/3) ... [2019-10-22 11:25:39,154 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_update_all_reverse.i [2019-10-22 11:25:39,164 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:39,174 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2019-10-22 11:25:39,186 INFO L249 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2019-10-22 11:25:39,209 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:39,209 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:25:39,209 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:39,209 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:39,210 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:39,210 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:39,210 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:39,210 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:39,235 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-10-22 11:25:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:25:39,247 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:39,249 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:25:39,252 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2019-10-22 11:25:39,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:39,261 INFO L82 PathProgramCache]: Analyzing trace with hash 925702, now seen corresponding path program 1 times [2019-10-22 11:25:39,272 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:25:39,272 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1941902901] [2019-10-22 11:25:39,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7330d524-246b-4f3f-8f47-51e88c2e73ce/bin/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 [2019-10-22 11:25:39,538 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:25:39,539 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort FloatRoundingMode not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferSymbols(SmtFunctionsAndAxioms.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.createExternalManagedScript(IpTcStrategyModuleTraceCheck.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:25:39,544 INFO L168 Benchmark]: Toolchain (without parser) took 1775.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:39,545 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:39,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -196.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:39,548 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.11 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:39,549 INFO L168 Benchmark]: Boogie Preprocessor took 39.39 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. [2019-10-22 11:25:39,550 INFO L168 Benchmark]: RCFGBuilder took 706.46 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: 37.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:39,550 INFO L168 Benchmark]: TraceAbstraction took 396.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:39,553 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 570.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -196.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.11 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.39 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 706.46 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: 37.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 396.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Sort FloatRoundingMode not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...