./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-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_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/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 bea41ba7ef8afa8e6ccd1150cee95a00bf0377da ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/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 bea41ba7ef8afa8e6ccd1150cee95a00bf0377da ..................................................................................................................................................................................................................................................... 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 11:27:01,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:01,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:01,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:01,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:01,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:01,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:01,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:01,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:01,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:01,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:01,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:01,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:01,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:01,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:01,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:01,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:02,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:02,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:02,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:02,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:02,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:02,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:02,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:02,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:02,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:02,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:02,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:02,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:02,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:02,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:02,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:02,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:02,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:02,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:02,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:02,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:02,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:02,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:02,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:02,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:02,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:27:02,050 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:02,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:02,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:02,051 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:02,051 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:02,052 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:02,052 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:27:02,052 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:02,052 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:02,052 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:27:02,052 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:27:02,053 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:02,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:27:02,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:27:02,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:02,054 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:02,054 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:27:02,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:27:02,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:02,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:02,056 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:27:02,057 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:27:02,057 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:27:02,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:02,057 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:02,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:02,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:02,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:02,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:02,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:02,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:02,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:02,059 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:27:02,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:27:02,059 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:02,060 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_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/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 -> bea41ba7ef8afa8e6ccd1150cee95a00bf0377da [2019-10-22 11:27:02,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:02,112 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:02,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:02,117 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:02,117 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:02,118 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i [2019-10-22 11:27:02,189 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/data/e34caf866/e519198c40a84ab4a0618ff22c6d943b/FLAG65196b151 [2019-10-22 11:27:02,603 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:02,604 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i [2019-10-22 11:27:02,617 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/data/e34caf866/e519198c40a84ab4a0618ff22c6d943b/FLAG65196b151 [2019-10-22 11:27:02,923 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/data/e34caf866/e519198c40a84ab4a0618ff22c6d943b [2019-10-22 11:27:02,926 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:02,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:02,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:02,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:02,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:02,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:02" (1/1) ... [2019-10-22 11:27:02,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c52d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:02, skipping insertion in model container [2019-10-22 11:27:02,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:02" (1/1) ... [2019-10-22 11:27:02,944 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:02,999 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:03,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:03,421 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:03,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:03,509 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:03,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:03 WrapperNode [2019-10-22 11:27:03,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:03,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:03,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:03,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:03,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:03" (1/1) ... [2019-10-22 11:27:03,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:03" (1/1) ... [2019-10-22 11:27:03,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:03,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:03,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:03,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:03,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:03" (1/1) ... [2019-10-22 11:27:03,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:03" (1/1) ... [2019-10-22 11:27:03,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:03" (1/1) ... [2019-10-22 11:27:03,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:03" (1/1) ... [2019-10-22 11:27:03,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:03" (1/1) ... [2019-10-22 11:27:03,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:03" (1/1) ... [2019-10-22 11:27:03,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:03" (1/1) ... [2019-10-22 11:27:03,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:03,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:03,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:03,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:03,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/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 11:27:03,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:27:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:27:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:27:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:27:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:03,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:04,077 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:04,078 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 11:27:04,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:04 BoogieIcfgContainer [2019-10-22 11:27:04,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:04,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:04,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:04,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:04,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:02" (1/3) ... [2019-10-22 11:27:04,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c494d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:04, skipping insertion in model container [2019-10-22 11:27:04,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:03" (2/3) ... [2019-10-22 11:27:04,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c494d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:04, skipping insertion in model container [2019-10-22 11:27:04,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:04" (3/3) ... [2019-10-22 11:27:04,089 INFO L109 eAbstractionObserver]: Analyzing ICFG openbsd_cstrncat-alloca-2.i [2019-10-22 11:27:04,099 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:04,117 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2019-10-22 11:27:04,129 INFO L249 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2019-10-22 11:27:04,155 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:04,156 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:27:04,156 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:04,156 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:04,156 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:04,156 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:04,156 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:04,157 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:04,179 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-10-22 11:27:04,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:27:04,187 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:04,188 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:04,190 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION]=== [2019-10-22 11:27:04,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:04,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1805031113, now seen corresponding path program 1 times [2019-10-22 11:27:04,207 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:04,207 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368652914] [2019-10-22 11:27:04,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:04,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:04,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:04,379 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 11:27:04,380 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368652914] [2019-10-22 11:27:04,381 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:04,381 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:27:04,381 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572227063] [2019-10-22 11:27:04,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:27:04,388 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:04,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:27:04,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:04,408 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2019-10-22 11:27:04,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:04,483 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2019-10-22 11:27:04,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:27:04,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-10-22 11:27:04,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:04,496 INFO L225 Difference]: With dead ends: 51 [2019-10-22 11:27:04,496 INFO L226 Difference]: Without dead ends: 48 [2019-10-22 11:27:04,498 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 11:27:04,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-10-22 11:27:04,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2019-10-22 11:27:04,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-10-22 11:27:04,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2019-10-22 11:27:04,535 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 7 [2019-10-22 11:27:04,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:04,536 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2019-10-22 11:27:04,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:27:04,536 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2019-10-22 11:27:04,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:27:04,537 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:04,537 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:04,537 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION]=== [2019-10-22 11:27:04,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:04,537 INFO L82 PathProgramCache]: Analyzing trace with hash 121388915, now seen corresponding path program 1 times [2019-10-22 11:27:04,538 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:04,538 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011953646] [2019-10-22 11:27:04,538 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:04,538 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:04,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:04,605 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 11:27:04,605 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011953646] [2019-10-22 11:27:04,605 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:04,606 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:27:04,606 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330529950] [2019-10-22 11:27:04,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:27:04,608 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:04,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:27:04,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:04,608 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 5 states. [2019-10-22 11:27:04,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:04,706 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2019-10-22 11:27:04,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:27:04,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-10-22 11:27:04,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:04,708 INFO L225 Difference]: With dead ends: 51 [2019-10-22 11:27:04,708 INFO L226 Difference]: Without dead ends: 48 [2019-10-22 11:27:04,709 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:27:04,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-10-22 11:27:04,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2019-10-22 11:27:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-10-22 11:27:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2019-10-22 11:27:04,714 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 8 [2019-10-22 11:27:04,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:04,715 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2019-10-22 11:27:04,715 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:27:04,715 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2019-10-22 11:27:04,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:27:04,715 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:04,716 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:04,716 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION]=== [2019-10-22 11:27:04,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:04,716 INFO L82 PathProgramCache]: Analyzing trace with hash 178647217, now seen corresponding path program 1 times [2019-10-22 11:27:04,717 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:04,717 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420451769] [2019-10-22 11:27:04,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:04,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:04,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:04,773 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 11:27:04,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420451769] [2019-10-22 11:27:04,773 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:04,773 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:27:04,774 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991182887] [2019-10-22 11:27:04,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:27:04,774 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:04,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:27:04,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:04,775 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 3 states. [2019-10-22 11:27:04,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:04,821 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2019-10-22 11:27:04,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:27:04,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-22 11:27:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:04,823 INFO L225 Difference]: With dead ends: 46 [2019-10-22 11:27:04,823 INFO L226 Difference]: Without dead ends: 46 [2019-10-22 11:27:04,823 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 11:27:04,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-10-22 11:27:04,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-10-22 11:27:04,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-22 11:27:04,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2019-10-22 11:27:04,828 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 8 [2019-10-22 11:27:04,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:04,828 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2019-10-22 11:27:04,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:27:04,829 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2019-10-22 11:27:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:27:04,829 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:04,829 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:04,830 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION]=== [2019-10-22 11:27:04,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:04,830 INFO L82 PathProgramCache]: Analyzing trace with hash 178647218, now seen corresponding path program 1 times [2019-10-22 11:27:04,830 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:04,830 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239049659] [2019-10-22 11:27:04,831 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:04,831 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:04,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:04,923 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 11:27:04,923 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239049659] [2019-10-22 11:27:04,923 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:04,924 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:27:04,924 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807176507] [2019-10-22 11:27:04,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:04,924 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:04,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:04,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:04,925 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 6 states. [2019-10-22 11:27:05,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:05,108 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2019-10-22 11:27:05,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:27:05,109 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-10-22 11:27:05,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:05,110 INFO L225 Difference]: With dead ends: 50 [2019-10-22 11:27:05,110 INFO L226 Difference]: Without dead ends: 50 [2019-10-22 11:27:05,110 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:27:05,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-10-22 11:27:05,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2019-10-22 11:27:05,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-10-22 11:27:05,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2019-10-22 11:27:05,117 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 8 [2019-10-22 11:27:05,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:05,118 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2019-10-22 11:27:05,118 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:05,118 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2019-10-22 11:27:05,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:27:05,118 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:05,121 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:05,121 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION]=== [2019-10-22 11:27:05,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:05,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1877967093, now seen corresponding path program 1 times [2019-10-22 11:27:05,122 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:05,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83365854] [2019-10-22 11:27:05,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:05,123 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:05,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:05,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:05,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83365854] [2019-10-22 11:27:05,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310583428] [2019-10-22 11:27:05,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/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 11:27:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:05,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-22 11:27:05,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:05,408 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_20|], 1=[|v_#valid_28|]} [2019-10-22 11:27:05,420 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 11:27:05,434 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 11 [2019-10-22 11:27:05,434 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:27:05,447 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:27:05,455 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-10-22 11:27:05,455 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 11:27:05,468 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:27:05,469 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:27:05,470 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:24, output treesize:12 [2019-10-22 11:27:05,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:05,490 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:05,531 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:27:05,576 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 11:27:05,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1777518013] [2019-10-22 11:27:05,586 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 13 [2019-10-22 11:27:05,634 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:27:05,635 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:27:05,929 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:05,930 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 11:27:05,936 INFO L168 Benchmark]: Toolchain (without parser) took 3008.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 937.0 MB in the beginning and 950.8 MB in the end (delta: -13.8 MB). Peak memory consumption was 121.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:05,936 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:05,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 582.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:05,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.51 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:05,938 INFO L168 Benchmark]: Boogie Preprocessor took 31.33 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 11:27:05,938 INFO L168 Benchmark]: RCFGBuilder took 487.77 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:05,939 INFO L168 Benchmark]: TraceAbstraction took 1853.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 950.8 MB in the end (delta: 126.3 MB). Peak memory consumption was 126.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:05,942 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 582.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.51 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.33 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 487.77 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1853.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 950.8 MB in the end (delta: 126.3 MB). Peak memory consumption was 126.3 MB. 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 11:27:08,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:08,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:08,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:08,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:08,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:08,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:08,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:08,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:08,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:08,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:08,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:08,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:08,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:08,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:08,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:08,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:08,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:08,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:08,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:08,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:08,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:08,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:08,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:08,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:08,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:08,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:08,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:08,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:08,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:08,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:08,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:08,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:08,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:08,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:08,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:08,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:08,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:08,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:08,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:08,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:08,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-10-22 11:27:08,135 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:08,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:08,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:08,137 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:08,137 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:08,137 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:08,137 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:08,137 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:08,137 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:08,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:27:08,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:27:08,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:08,138 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:08,139 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:27:08,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:27:08,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:08,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:08,147 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:27:08,148 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:27:08,148 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:27:08,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:08,148 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:27:08,148 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:27:08,148 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:08,149 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:27:08,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:08,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:08,149 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:08,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:08,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:08,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:08,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:08,150 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:27:08,150 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:27:08,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:08,151 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_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/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 -> bea41ba7ef8afa8e6ccd1150cee95a00bf0377da [2019-10-22 11:27:08,179 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:08,189 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:08,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:08,194 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:08,194 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:08,195 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i [2019-10-22 11:27:08,246 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/data/2dfc791f1/2530150799c6460abb649dd7d38852cd/FLAG0b7bef407 [2019-10-22 11:27:08,698 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:08,699 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i [2019-10-22 11:27:08,715 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/data/2dfc791f1/2530150799c6460abb649dd7d38852cd/FLAG0b7bef407 [2019-10-22 11:27:09,009 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/bin/utaipan/data/2dfc791f1/2530150799c6460abb649dd7d38852cd [2019-10-22 11:27:09,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:09,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:09,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:09,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:09,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:09,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:09" (1/1) ... [2019-10-22 11:27:09,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c424fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09, skipping insertion in model container [2019-10-22 11:27:09,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:09" (1/1) ... [2019-10-22 11:27:09,034 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:09,082 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:09,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:09,495 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:09,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:09,610 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:09,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09 WrapperNode [2019-10-22 11:27:09,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:09,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:09,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:09,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:09,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09" (1/1) ... [2019-10-22 11:27:09,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09" (1/1) ... [2019-10-22 11:27:09,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:09,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:09,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:09,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:09,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09" (1/1) ... [2019-10-22 11:27:09,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09" (1/1) ... [2019-10-22 11:27:09,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09" (1/1) ... [2019-10-22 11:27:09,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09" (1/1) ... [2019-10-22 11:27:09,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09" (1/1) ... [2019-10-22 11:27:09,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09" (1/1) ... [2019-10-22 11:27:09,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09" (1/1) ... [2019-10-22 11:27:09,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:09,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:09,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:09,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:09,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/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 11:27:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-10-22 11:27:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:27:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-10-22 11:27:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:27:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:10,260 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:10,260 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 11:27:10,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:10 BoogieIcfgContainer [2019-10-22 11:27:10,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:10,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:10,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:10,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:10,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:09" (1/3) ... [2019-10-22 11:27:10,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4177bc65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:10, skipping insertion in model container [2019-10-22 11:27:10,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:09" (2/3) ... [2019-10-22 11:27:10,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4177bc65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:10, skipping insertion in model container [2019-10-22 11:27:10,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:10" (3/3) ... [2019-10-22 11:27:10,270 INFO L109 eAbstractionObserver]: Analyzing ICFG openbsd_cstrncat-alloca-2.i [2019-10-22 11:27:10,280 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:10,289 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2019-10-22 11:27:10,301 INFO L249 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2019-10-22 11:27:10,322 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:10,322 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:27:10,322 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:10,322 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:10,322 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:10,323 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:10,323 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:10,323 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:10,346 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-10-22 11:27:10,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:27:10,354 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:10,354 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:10,357 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION]=== [2019-10-22 11:27:10,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:10,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1805031113, now seen corresponding path program 1 times [2019-10-22 11:27:10,370 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:10,370 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [370767774] [2019-10-22 11:27:10,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57ee4f3c-deb3-4440-b9f7-dbc959e6c2b0/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 11:27:10,613 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:10,614 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 11:27:10,619 INFO L168 Benchmark]: Toolchain (without parser) took 1604.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 946.9 MB in the beginning and 1.0 GB in the end (delta: -77.7 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:10,619 INFO L168 Benchmark]: CDTParser took 0.31 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 11:27:10,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -131.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:10,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:10,623 INFO L168 Benchmark]: Boogie Preprocessor took 39.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:10,624 INFO L168 Benchmark]: RCFGBuilder took 559.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:10,624 INFO L168 Benchmark]: TraceAbstraction took 354.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:10,629 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 596.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -131.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 559.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 354.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 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...