./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.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_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/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 cf7af2f20e563d03f4a81a8dac054ded849cb34c ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/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 cf7af2f20e563d03f4a81a8dac054ded849cb34c .................................................................................................................................................................................................................................................... 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 11:26:50,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:50,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:50,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:50,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:50,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:50,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:50,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:50,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:50,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:50,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:50,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:50,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:50,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:50,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:50,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:50,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:50,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:50,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:50,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:50,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:50,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:50,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:50,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:50,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:50,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:50,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:50,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:50,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:50,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:50,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:50,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:50,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:50,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:50,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:50,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:50,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:50,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:50,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:50,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:50,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:50,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:26:50,427 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:50,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:50,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:50,428 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:50,428 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:50,428 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:50,429 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:50,429 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:50,429 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:50,429 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:50,429 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:50,429 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:50,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:26:50,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:26:50,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:50,430 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:50,431 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:26:50,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:50,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:50,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:50,431 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:26:50,431 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:26:50,432 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:26:50,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:50,432 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:50,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:50,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:50,432 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:50,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:50,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:50,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:50,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:50,433 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:50,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:50,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:50,434 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_c0613e9f-80ce-4476-905b-593e9d941736/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 -> cf7af2f20e563d03f4a81a8dac054ded849cb34c [2019-10-22 11:26:50,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:50,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:50,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:50,481 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:50,482 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:50,483 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-10-22 11:26:50,530 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/data/2f1ee4c12/1d76e91f4eed4c76a05a87f66e3fec76/FLAG0bac38360 [2019-10-22 11:26:50,980 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:50,980 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-10-22 11:26:50,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/data/2f1ee4c12/1d76e91f4eed4c76a05a87f66e3fec76/FLAG0bac38360 [2019-10-22 11:26:51,325 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/data/2f1ee4c12/1d76e91f4eed4c76a05a87f66e3fec76 [2019-10-22 11:26:51,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:51,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:51,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:51,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:51,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:51,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:51" (1/1) ... [2019-10-22 11:26:51,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8ef551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51, skipping insertion in model container [2019-10-22 11:26:51,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:51" (1/1) ... [2019-10-22 11:26:51,343 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:51,382 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:51,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:51,694 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:51,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:51,769 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:51,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51 WrapperNode [2019-10-22 11:26:51,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:51,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:51,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:51,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:51,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51" (1/1) ... [2019-10-22 11:26:51,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51" (1/1) ... [2019-10-22 11:26:51,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:51,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:51,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:51,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:51,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51" (1/1) ... [2019-10-22 11:26:51,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51" (1/1) ... [2019-10-22 11:26:51,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51" (1/1) ... [2019-10-22 11:26:51,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51" (1/1) ... [2019-10-22 11:26:51,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51" (1/1) ... [2019-10-22 11:26:51,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51" (1/1) ... [2019-10-22 11:26:51,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51" (1/1) ... [2019-10-22 11:26:51,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:51,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:51,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:51,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:51,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/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 11:26:51,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:26:51,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:26:51,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:26:51,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:26:51,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:52,197 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:52,197 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-22 11:26:52,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:52 BoogieIcfgContainer [2019-10-22 11:26:52,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:52,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:52,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:52,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:52,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:51" (1/3) ... [2019-10-22 11:26:52,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b633dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:52, skipping insertion in model container [2019-10-22 11:26:52,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:51" (2/3) ... [2019-10-22 11:26:52,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b633dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:52, skipping insertion in model container [2019-10-22 11:26:52,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:52" (3/3) ... [2019-10-22 11:26:52,205 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-2.i [2019-10-22 11:26:52,213 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:52,218 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-10-22 11:26:52,225 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-10-22 11:26:52,242 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:52,242 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:26:52,243 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:52,243 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:52,243 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:52,243 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:52,243 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:52,243 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:52,257 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-10-22 11:26:52,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:26:52,263 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:52,264 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:52,266 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:26:52,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:52,271 INFO L82 PathProgramCache]: Analyzing trace with hash 2097131947, now seen corresponding path program 1 times [2019-10-22 11:26:52,279 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:52,279 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636139007] [2019-10-22 11:26:52,280 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:52,280 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:52,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:52,449 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 11:26:52,450 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636139007] [2019-10-22 11:26:52,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:52,451 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:26:52,451 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21888651] [2019-10-22 11:26:52,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:52,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:52,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:52,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:52,471 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 5 states. [2019-10-22 11:26:52,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:52,588 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-10-22 11:26:52,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:26:52,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-10-22 11:26:52,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:52,600 INFO L225 Difference]: With dead ends: 30 [2019-10-22 11:26:52,600 INFO L226 Difference]: Without dead ends: 26 [2019-10-22 11:26:52,602 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:26:52,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-22 11:26:52,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-22 11:26:52,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 11:26:52,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2019-10-22 11:26:52,636 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 9 [2019-10-22 11:26:52,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:52,636 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2019-10-22 11:26:52,636 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:52,636 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2019-10-22 11:26:52,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:26:52,637 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:52,637 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:52,637 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:26:52,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:52,637 INFO L82 PathProgramCache]: Analyzing trace with hash 2097131948, now seen corresponding path program 1 times [2019-10-22 11:26:52,638 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:52,638 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736073467] [2019-10-22 11:26:52,638 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:52,638 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:52,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:52,733 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 11:26:52,733 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736073467] [2019-10-22 11:26:52,734 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:52,734 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:26:52,734 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774413652] [2019-10-22 11:26:52,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:52,735 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:52,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:52,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:52,736 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 5 states. [2019-10-22 11:26:52,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:52,893 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-10-22 11:26:52,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:26:52,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-10-22 11:26:52,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:52,895 INFO L225 Difference]: With dead ends: 22 [2019-10-22 11:26:52,895 INFO L226 Difference]: Without dead ends: 22 [2019-10-22 11:26:52,896 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:26:52,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-22 11:26:52,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-10-22 11:26:52,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-22 11:26:52,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2019-10-22 11:26:52,900 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 9 [2019-10-22 11:26:52,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:52,900 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2019-10-22 11:26:52,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:52,901 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2019-10-22 11:26:52,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:26:52,902 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:52,902 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:52,902 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:26:52,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:52,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1063541525, now seen corresponding path program 1 times [2019-10-22 11:26:52,903 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:52,903 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570604442] [2019-10-22 11:26:52,903 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:52,903 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:52,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:53,008 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 11:26:53,008 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570604442] [2019-10-22 11:26:53,009 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:53,009 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:26:53,009 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660350071] [2019-10-22 11:26:53,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:26:53,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:53,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:26:53,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:26:53,010 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 7 states. [2019-10-22 11:26:53,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:53,188 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-10-22 11:26:53,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:26:53,189 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-10-22 11:26:53,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:53,189 INFO L225 Difference]: With dead ends: 21 [2019-10-22 11:26:53,189 INFO L226 Difference]: Without dead ends: 21 [2019-10-22 11:26:53,190 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2019-10-22 11:26:53,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-22 11:26:53,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-22 11:26:53,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-22 11:26:53,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2019-10-22 11:26:53,192 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 12 [2019-10-22 11:26:53,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:53,192 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2019-10-22 11:26:53,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:26:53,192 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2019-10-22 11:26:53,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:26:53,193 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:53,193 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:53,193 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:26:53,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:53,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1063541524, now seen corresponding path program 1 times [2019-10-22 11:26:53,196 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:53,197 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427987362] [2019-10-22 11:26:53,197 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:53,198 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:53,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:53,288 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 11:26:53,288 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427987362] [2019-10-22 11:26:53,288 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:53,289 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:26:53,289 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463733876] [2019-10-22 11:26:53,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:26:53,292 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:53,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:26:53,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:26:53,292 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 7 states. [2019-10-22 11:26:53,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:53,413 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2019-10-22 11:26:53,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:26:53,414 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-10-22 11:26:53,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:53,414 INFO L225 Difference]: With dead ends: 20 [2019-10-22 11:26:53,415 INFO L226 Difference]: Without dead ends: 20 [2019-10-22 11:26:53,415 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2019-10-22 11:26:53,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-22 11:26:53,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-10-22 11:26:53,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-22 11:26:53,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2019-10-22 11:26:53,417 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 12 [2019-10-22 11:26:53,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:53,418 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2019-10-22 11:26:53,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:26:53,418 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2019-10-22 11:26:53,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:26:53,418 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:53,418 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:53,419 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:26:53,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:53,419 INFO L82 PathProgramCache]: Analyzing trace with hash -254138953, now seen corresponding path program 1 times [2019-10-22 11:26:53,419 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:53,419 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922564169] [2019-10-22 11:26:53,419 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:53,419 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:53,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:53,514 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 11:26:53,514 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922564169] [2019-10-22 11:26:53,514 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:53,515 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:26:53,515 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473531730] [2019-10-22 11:26:53,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:53,515 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:53,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:53,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:53,516 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 5 states. [2019-10-22 11:26:53,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:53,578 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-10-22 11:26:53,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:26:53,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-10-22 11:26:53,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:53,580 INFO L225 Difference]: With dead ends: 19 [2019-10-22 11:26:53,580 INFO L226 Difference]: Without dead ends: 19 [2019-10-22 11:26:53,580 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:26:53,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-22 11:26:53,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-22 11:26:53,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 11:26:53,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-10-22 11:26:53,584 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 16 [2019-10-22 11:26:53,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:53,585 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-10-22 11:26:53,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:53,585 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-10-22 11:26:53,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:26:53,585 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:53,585 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:53,586 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:26:53,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:53,586 INFO L82 PathProgramCache]: Analyzing trace with hash 585604346, now seen corresponding path program 1 times [2019-10-22 11:26:53,586 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:53,586 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048710423] [2019-10-22 11:26:53,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:53,587 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:53,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:53,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:53,680 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:26:53,680 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:26:53,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:53 BoogieIcfgContainer [2019-10-22 11:26:53,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:53,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:53,711 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:53,712 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:53,713 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:52" (3/4) ... [2019-10-22 11:26:53,719 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:26:53,719 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:53,721 INFO L168 Benchmark]: Toolchain (without parser) took 2392.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 939.1 MB in the beginning and 965.3 MB in the end (delta: -26.2 MB). Peak memory consumption was 127.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:53,723 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:53,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:53,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.03 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:53,724 INFO L168 Benchmark]: Boogie Preprocessor took 28.57 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:53,725 INFO L168 Benchmark]: RCFGBuilder took 363.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:53,725 INFO L168 Benchmark]: TraceAbstraction took 1511.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.9 MB in the end (delta: 135.0 MB). Peak memory consumption was 135.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:53,727 INFO L168 Benchmark]: Witness Printer took 7.97 ms. Allocated memory is still 1.2 GB. Free memory was 966.9 MB in the beginning and 965.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:53,730 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 440.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.03 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.57 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 363.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1511.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.9 MB in the end (delta: 135.0 MB). Peak memory consumption was 135.0 MB. Max. memory is 11.5 GB. * Witness Printer took 7.97 ms. Allocated memory is still 1.2 GB. Free memory was 966.9 MB in the beginning and 965.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 568]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 568. Possible FailurePath: [L562] struct node* temp = (struct node*) malloc(sizeof(struct node)); [L563] COND FALSE !(((void *)0) == temp) [L566] return temp; [L569] struct node* s = alloc_node(); [L562] struct node* temp = (struct node*) malloc(sizeof(struct node)); [L563] COND FALSE !(((void *)0) == temp) [L566] return temp; [L570] s->next = alloc_node() [L571] EXPR s->next [L571] *s = *(s->next) [L572] free(s) [L572] free(s) [L572] free(s) [L573] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 12 error locations. Result: UNSAFE, OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 181 SDslu, 38 SDs, 0 SdLazy, 195 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 3415 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:26:55,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:55,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:55,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:55,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:55,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:55,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:55,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:55,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:55,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:55,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:55,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:55,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:55,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:55,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:55,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:55,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:55,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:55,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:55,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:55,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:55,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:55,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:55,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:55,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:55,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:55,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:55,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:55,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:55,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:55,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:55,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:55,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:55,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:55,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:55,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:55,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:55,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:55,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:55,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:55,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:55,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-10-22 11:26:55,871 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:55,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:55,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:55,872 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:55,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:55,873 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:55,873 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:55,873 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:55,873 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:55,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:26:55,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:26:55,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:55,874 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:55,875 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:26:55,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:55,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:55,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:55,875 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:26:55,875 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:26:55,876 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:26:55,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:55,876 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:26:55,876 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:26:55,876 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:55,876 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:26:55,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:55,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:55,877 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:55,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:55,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:55,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:55,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:55,878 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:26:55,879 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:26:55,879 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:55,879 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_c0613e9f-80ce-4476-905b-593e9d941736/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 -> cf7af2f20e563d03f4a81a8dac054ded849cb34c [2019-10-22 11:26:55,923 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:55,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:55,944 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:55,945 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:55,946 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:55,947 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-10-22 11:26:56,009 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/data/fd2e505bf/bbae6186fd974b4b83192293318a4e66/FLAG7deb5c848 [2019-10-22 11:26:56,466 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:56,467 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-10-22 11:26:56,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/data/fd2e505bf/bbae6186fd974b4b83192293318a4e66/FLAG7deb5c848 [2019-10-22 11:26:56,779 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/bin/utaipan/data/fd2e505bf/bbae6186fd974b4b83192293318a4e66 [2019-10-22 11:26:56,782 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:56,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:56,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:56,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:56,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:56,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:56" (1/1) ... [2019-10-22 11:26:56,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ff977f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:56, skipping insertion in model container [2019-10-22 11:26:56,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:56" (1/1) ... [2019-10-22 11:26:56,801 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:56,849 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:57,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:57,265 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:57,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:57,355 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:57,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57 WrapperNode [2019-10-22 11:26:57,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:57,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:57,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:57,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:57,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:57,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:57,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:57,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:57,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:57,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:57,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:57,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:57,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/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 11:26:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:26:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:26:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:26:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:26:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:57,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:57,770 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:57,770 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-22 11:26:57,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:57 BoogieIcfgContainer [2019-10-22 11:26:57,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:57,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:57,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:57,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:57,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:56" (1/3) ... [2019-10-22 11:26:57,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308ace59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:57, skipping insertion in model container [2019-10-22 11:26:57,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (2/3) ... [2019-10-22 11:26:57,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308ace59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:57, skipping insertion in model container [2019-10-22 11:26:57,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:57" (3/3) ... [2019-10-22 11:26:57,780 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-2.i [2019-10-22 11:26:57,790 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:57,798 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-10-22 11:26:57,810 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-10-22 11:26:57,832 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:57,832 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:26:57,832 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:57,832 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:57,832 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:57,833 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:57,833 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:57,833 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:57,849 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-10-22 11:26:57,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:26:57,857 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:57,858 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:57,860 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2019-10-22 11:26:57,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:57,866 INFO L82 PathProgramCache]: Analyzing trace with hash 2097131947, now seen corresponding path program 1 times [2019-10-22 11:26:57,877 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:57,877 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [639225106] [2019-10-22 11:26:57,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0613e9f-80ce-4476-905b-593e9d941736/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 11:26:58,116 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:58,117 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 11:26:58,123 INFO L168 Benchmark]: Toolchain (without parser) took 1338.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:58,124 INFO L168 Benchmark]: CDTParser took 1.47 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:58,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 571.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:58,125 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.39 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:58,126 INFO L168 Benchmark]: Boogie Preprocessor took 27.41 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 11:26:58,127 INFO L168 Benchmark]: RCFGBuilder took 337.55 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: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:58,127 INFO L168 Benchmark]: TraceAbstraction took 347.49 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 11:26:58,131 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.47 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 571.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.39 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.41 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. * RCFGBuilder took 337.55 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: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 347.49 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...