./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-memleak_nexttime.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_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/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 7f8b82d203c82fbd9a6998ebae2e5e61d62e5cb0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/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 7f8b82d203c82fbd9a6998ebae2e5e61d62e5cb0 .......................................................................................................................................................................................................................................................... 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 11:21:44,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:44,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:44,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:44,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:44,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:44,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:44,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:44,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:44,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:44,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:44,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:44,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:44,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:44,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:44,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:44,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:44,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:44,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:44,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:44,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:44,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:44,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:44,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:44,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:44,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:44,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:44,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:44,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:44,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:44,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:44,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:44,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:44,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:44,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:44,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:44,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:44,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:44,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:44,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:44,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:44,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:21:44,888 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:44,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:44,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:44,889 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:44,889 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:44,889 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:44,889 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:44,889 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:44,890 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:44,890 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:44,890 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:44,890 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:44,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:21:44,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:21:44,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:44,891 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:44,891 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:21:44,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:44,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:44,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:44,892 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:21:44,892 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:21:44,892 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:21:44,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:44,893 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:44,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:44,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:44,894 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:44,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:44,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:44,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:44,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:44,895 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:44,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:44,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:44,896 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_bf22b23e-82bb-4991-ab29-43b199bd7d5c/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 -> 7f8b82d203c82fbd9a6998ebae2e5e61d62e5cb0 [2019-10-22 11:21:44,927 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:44,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:44,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:44,943 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:44,943 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:44,944 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i [2019-10-22 11:21:44,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/data/2875ca57c/44ad8dc3ac034d8cbd95dbf47295a316/FLAG55c534413 [2019-10-22 11:21:45,450 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:45,455 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/sv-benchmarks/c/memsafety/test-memleak_nexttime.i [2019-10-22 11:21:45,465 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/data/2875ca57c/44ad8dc3ac034d8cbd95dbf47295a316/FLAG55c534413 [2019-10-22 11:21:45,476 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/data/2875ca57c/44ad8dc3ac034d8cbd95dbf47295a316 [2019-10-22 11:21:45,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:45,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:45,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:45,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:45,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:45,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:45,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@639d099c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45, skipping insertion in model container [2019-10-22 11:21:45,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:45,494 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:45,527 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:45,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:45,889 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:45,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:45,985 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:45,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45 WrapperNode [2019-10-22 11:21:45,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:45,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:45,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:45,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:45,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:46,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:46,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:46,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:46,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:46,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:46,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:46,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:46,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:46,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:46,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:46,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:46,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:46,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:46,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:46,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:46,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:46,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/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 11:21:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-22 11:21:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-22 11:21:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-22 11:21:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:21:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:21:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:21:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 11:21:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:21:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-22 11:21:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:46,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:46,373 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:46,373 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 11:21:46,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:46 BoogieIcfgContainer [2019-10-22 11:21:46,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:46,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:46,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:46,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:46,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:45" (1/3) ... [2019-10-22 11:21:46,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e70a532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:46, skipping insertion in model container [2019-10-22 11:21:46,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (2/3) ... [2019-10-22 11:21:46,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e70a532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:46, skipping insertion in model container [2019-10-22 11:21:46,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:46" (3/3) ... [2019-10-22 11:21:46,381 INFO L109 eAbstractionObserver]: Analyzing ICFG test-memleak_nexttime.i [2019-10-22 11:21:46,392 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:46,401 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2019-10-22 11:21:46,417 INFO L249 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2019-10-22 11:21:46,437 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:46,437 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:21:46,438 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:46,438 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:46,438 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:46,438 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:46,438 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:46,438 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:46,455 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-10-22 11:21:46,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:21:46,461 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:46,462 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:21:46,464 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:21:46,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:46,469 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2019-10-22 11:21:46,476 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:46,477 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383530768] [2019-10-22 11:21:46,477 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:46,477 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:46,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:46,674 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 11:21:46,675 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383530768] [2019-10-22 11:21:46,676 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:46,676 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:46,676 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146629102] [2019-10-22 11:21:46,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:46,683 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:46,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:46,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:46,702 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2019-10-22 11:21:46,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:46,808 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2019-10-22 11:21:46,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:46,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 11:21:46,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:46,818 INFO L225 Difference]: With dead ends: 36 [2019-10-22 11:21:46,818 INFO L226 Difference]: Without dead ends: 34 [2019-10-22 11:21:46,820 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:46,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-22 11:21:46,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-10-22 11:21:46,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-22 11:21:46,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2019-10-22 11:21:46,850 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 3 [2019-10-22 11:21:46,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:46,850 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2019-10-22 11:21:46,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:46,850 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2019-10-22 11:21:46,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:21:46,850 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:46,851 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:21:46,851 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:21:46,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:46,852 INFO L82 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2019-10-22 11:21:46,852 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:46,852 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809819134] [2019-10-22 11:21:46,852 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:46,852 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:46,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:46,886 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 11:21:46,886 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809819134] [2019-10-22 11:21:46,886 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:46,886 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:46,886 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736553244] [2019-10-22 11:21:46,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:46,888 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:46,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:46,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:46,888 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 3 states. [2019-10-22 11:21:46,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:46,927 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2019-10-22 11:21:46,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:46,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-10-22 11:21:46,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:46,928 INFO L225 Difference]: With dead ends: 33 [2019-10-22 11:21:46,928 INFO L226 Difference]: Without dead ends: 33 [2019-10-22 11:21:46,929 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 11:21:46,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-22 11:21:46,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-10-22 11:21:46,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-22 11:21:46,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2019-10-22 11:21:46,932 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 4 [2019-10-22 11:21:46,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:46,932 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2019-10-22 11:21:46,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:46,933 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2019-10-22 11:21:46,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:21:46,933 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:46,933 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:21:46,933 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:21:46,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:46,934 INFO L82 PathProgramCache]: Analyzing trace with hash 28692770, now seen corresponding path program 1 times [2019-10-22 11:21:46,934 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:46,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797425554] [2019-10-22 11:21:46,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:46,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:46,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,026 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 11:21:47,026 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797425554] [2019-10-22 11:21:47,026 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:47,026 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:47,026 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43977804] [2019-10-22 11:21:47,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:47,027 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:47,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:47,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:47,028 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 4 states. [2019-10-22 11:21:47,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:47,136 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2019-10-22 11:21:47,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:47,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-10-22 11:21:47,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:47,138 INFO L225 Difference]: With dead ends: 31 [2019-10-22 11:21:47,138 INFO L226 Difference]: Without dead ends: 31 [2019-10-22 11:21:47,138 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:47,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-22 11:21:47,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-22 11:21:47,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-22 11:21:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2019-10-22 11:21:47,141 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 5 [2019-10-22 11:21:47,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:47,142 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2019-10-22 11:21:47,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:47,142 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2019-10-22 11:21:47,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 11:21:47,142 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:47,142 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 11:21:47,143 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:21:47,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:47,143 INFO L82 PathProgramCache]: Analyzing trace with hash 889475910, now seen corresponding path program 1 times [2019-10-22 11:21:47,143 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:47,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537508106] [2019-10-22 11:21:47,144 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,144 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,214 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 11:21:47,215 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537508106] [2019-10-22 11:21:47,215 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:47,215 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:47,215 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013273735] [2019-10-22 11:21:47,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:47,216 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:47,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:47,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:47,216 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 5 states. [2019-10-22 11:21:47,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:47,338 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2019-10-22 11:21:47,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:47,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-10-22 11:21:47,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:47,339 INFO L225 Difference]: With dead ends: 30 [2019-10-22 11:21:47,339 INFO L226 Difference]: Without dead ends: 30 [2019-10-22 11:21:47,340 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:47,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-22 11:21:47,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-10-22 11:21:47,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-22 11:21:47,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2019-10-22 11:21:47,342 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 6 [2019-10-22 11:21:47,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:47,344 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2019-10-22 11:21:47,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:47,345 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2019-10-22 11:21:47,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:21:47,345 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:47,345 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:47,346 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:21:47,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:47,346 INFO L82 PathProgramCache]: Analyzing trace with hash -811376880, now seen corresponding path program 1 times [2019-10-22 11:21:47,346 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:47,347 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558908680] [2019-10-22 11:21:47,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,459 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 11:21:47,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558908680] [2019-10-22 11:21:47,460 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:47,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:47,460 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901987521] [2019-10-22 11:21:47,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:21:47,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:47,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:21:47,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:47,461 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 7 states. [2019-10-22 11:21:47,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:47,538 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-10-22 11:21:47,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:47,539 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-10-22 11:21:47,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:47,539 INFO L225 Difference]: With dead ends: 29 [2019-10-22 11:21:47,540 INFO L226 Difference]: Without dead ends: 29 [2019-10-22 11:21:47,540 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:47,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-22 11:21:47,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-10-22 11:21:47,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-22 11:21:47,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2019-10-22 11:21:47,544 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 12 [2019-10-22 11:21:47,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:47,548 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2019-10-22 11:21:47,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:21:47,549 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2019-10-22 11:21:47,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:21:47,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:47,550 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:47,550 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:21:47,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:47,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1950868178, now seen corresponding path program 1 times [2019-10-22 11:21:47,551 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:47,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149712288] [2019-10-22 11:21:47,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,685 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 11:21:47,686 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149712288] [2019-10-22 11:21:47,686 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:47,686 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:47,686 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127136145] [2019-10-22 11:21:47,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:21:47,687 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:47,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:21:47,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:47,688 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 7 states. [2019-10-22 11:21:47,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:47,807 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-10-22 11:21:47,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:47,808 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2019-10-22 11:21:47,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:47,809 INFO L225 Difference]: With dead ends: 28 [2019-10-22 11:21:47,809 INFO L226 Difference]: Without dead ends: 28 [2019-10-22 11:21:47,809 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:47,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-10-22 11:21:47,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-10-22 11:21:47,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-22 11:21:47,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2019-10-22 11:21:47,812 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 14 [2019-10-22 11:21:47,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:47,812 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2019-10-22 11:21:47,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:21:47,813 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2019-10-22 11:21:47,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:21:47,813 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:47,813 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:47,814 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:21:47,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:47,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1966547675, now seen corresponding path program 1 times [2019-10-22 11:21:47,814 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:47,814 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122719612] [2019-10-22 11:21:47,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,887 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 11:21:47,887 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122719612] [2019-10-22 11:21:47,887 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:47,888 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:47,888 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577533449] [2019-10-22 11:21:47,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:47,888 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:47,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:47,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:47,889 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 3 states. [2019-10-22 11:21:47,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:47,916 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2019-10-22 11:21:47,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:47,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-10-22 11:21:47,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:47,918 INFO L225 Difference]: With dead ends: 27 [2019-10-22 11:21:47,918 INFO L226 Difference]: Without dead ends: 27 [2019-10-22 11:21:47,918 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 11:21:47,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-22 11:21:47,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-10-22 11:21:47,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 11:21:47,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-10-22 11:21:47,921 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2019-10-22 11:21:47,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:47,921 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-10-22 11:21:47,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:47,921 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-10-22 11:21:47,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:21:47,922 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:47,922 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:47,922 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:21:47,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:47,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1966547676, now seen corresponding path program 1 times [2019-10-22 11:21:47,924 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:47,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094033430] [2019-10-22 11:21:47,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,993 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 11:21:47,993 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094033430] [2019-10-22 11:21:47,993 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:47,993 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:21:47,994 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211568860] [2019-10-22 11:21:47,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:47,994 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:47,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:47,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:47,995 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 4 states. [2019-10-22 11:21:48,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:48,028 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-10-22 11:21:48,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:21:48,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-10-22 11:21:48,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:48,030 INFO L225 Difference]: With dead ends: 29 [2019-10-22 11:21:48,030 INFO L226 Difference]: Without dead ends: 29 [2019-10-22 11:21:48,030 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:48,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-22 11:21:48,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-10-22 11:21:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-22 11:21:48,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2019-10-22 11:21:48,033 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 18 [2019-10-22 11:21:48,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:48,033 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2019-10-22 11:21:48,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:48,034 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2019-10-22 11:21:48,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:21:48,034 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:48,034 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:48,035 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:21:48,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:48,035 INFO L82 PathProgramCache]: Analyzing trace with hash 446914908, now seen corresponding path program 1 times [2019-10-22 11:21:48,036 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:48,036 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639574964] [2019-10-22 11:21:48,036 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:48,036 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:48,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:48,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 11:21:48,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639574964] [2019-10-22 11:21:48,071 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:48,071 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:21:48,071 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858279474] [2019-10-22 11:21:48,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:48,072 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:48,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:48,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:48,072 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 4 states. [2019-10-22 11:21:48,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:48,106 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2019-10-22 11:21:48,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:21:48,107 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-22 11:21:48,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:48,108 INFO L225 Difference]: With dead ends: 31 [2019-10-22 11:21:48,108 INFO L226 Difference]: Without dead ends: 31 [2019-10-22 11:21:48,108 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:48,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-22 11:21:48,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-22 11:21:48,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-22 11:21:48,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2019-10-22 11:21:48,111 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 20 [2019-10-22 11:21:48,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:48,111 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2019-10-22 11:21:48,112 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:48,112 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2019-10-22 11:21:48,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:21:48,113 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:48,113 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:48,113 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:21:48,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:48,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1831536216, now seen corresponding path program 1 times [2019-10-22 11:21:48,114 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:48,114 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486224237] [2019-10-22 11:21:48,114 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:48,114 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:48,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:48,197 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-22 11:21:48,198 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486224237] [2019-10-22 11:21:48,198 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:48,198 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:48,198 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916017853] [2019-10-22 11:21:48,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:48,199 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:48,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:48,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:48,199 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 4 states. [2019-10-22 11:21:48,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:48,230 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2019-10-22 11:21:48,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:48,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-10-22 11:21:48,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:48,231 INFO L225 Difference]: With dead ends: 30 [2019-10-22 11:21:48,232 INFO L226 Difference]: Without dead ends: 30 [2019-10-22 11:21:48,232 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:48,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-22 11:21:48,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-10-22 11:21:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-22 11:21:48,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2019-10-22 11:21:48,234 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 22 [2019-10-22 11:21:48,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:48,234 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2019-10-22 11:21:48,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:48,236 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2019-10-22 11:21:48,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 11:21:48,237 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:48,237 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:48,237 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:21:48,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:48,238 INFO L82 PathProgramCache]: Analyzing trace with hash 943047838, now seen corresponding path program 1 times [2019-10-22 11:21:48,238 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:48,238 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766922454] [2019-10-22 11:21:48,238 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:48,238 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:48,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:48,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:21:48,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766922454] [2019-10-22 11:21:48,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658650776] [2019-10-22 11:21:48,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/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 11:21:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:48,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:21:48,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:48,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:21:48,435 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:48,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:21:48,464 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1214702996] [2019-10-22 11:21:48,470 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 24 [2019-10-22 11:21:48,514 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:21:48,514 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:21:48,825 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:48,825 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 11:21:48,830 INFO L168 Benchmark]: Toolchain (without parser) took 3350.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:48,830 INFO L168 Benchmark]: CDTParser took 0.15 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 11:21:48,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:48,834 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.69 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 11:21:48,835 INFO L168 Benchmark]: Boogie Preprocessor took 31.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:48,835 INFO L168 Benchmark]: RCFGBuilder took 312.58 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:48,835 INFO L168 Benchmark]: TraceAbstraction took 2452.90 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: -19.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:48,838 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 505.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 312.58 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2452.90 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: -19.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:50,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:50,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:50,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:50,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:50,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:50,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:50,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:50,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:50,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:50,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:50,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:50,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:50,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:50,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:50,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:50,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:50,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:50,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:50,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:50,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:50,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:50,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:50,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:50,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:50,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:50,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:50,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:50,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:50,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:50,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:50,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:50,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:50,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:50,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:50,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:50,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:50,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:50,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:50,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:50,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:50,742 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-10-22 11:21:50,758 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:50,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:50,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:50,762 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:50,762 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:50,762 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:50,762 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:50,762 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:50,763 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:50,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:21:50,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:21:50,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:50,764 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:50,764 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:21:50,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:50,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:50,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:50,764 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:21:50,764 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:21:50,764 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:21:50,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:50,765 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:21:50,765 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:21:50,765 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:50,765 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:21:50,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:50,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:50,766 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:50,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:50,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:50,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:50,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:50,766 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:21:50,766 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:21:50,766 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:50,767 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_bf22b23e-82bb-4991-ab29-43b199bd7d5c/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 -> 7f8b82d203c82fbd9a6998ebae2e5e61d62e5cb0 [2019-10-22 11:21:50,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:50,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:50,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:50,815 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:50,816 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:50,816 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i [2019-10-22 11:21:50,862 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/data/7c97b2c34/505cad818a454754bdebddd28f53a27c/FLAGb968329bf [2019-10-22 11:21:51,278 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:51,278 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/sv-benchmarks/c/memsafety/test-memleak_nexttime.i [2019-10-22 11:21:51,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/data/7c97b2c34/505cad818a454754bdebddd28f53a27c/FLAGb968329bf [2019-10-22 11:21:51,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/bin/utaipan/data/7c97b2c34/505cad818a454754bdebddd28f53a27c [2019-10-22 11:21:51,306 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:51,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:51,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:51,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:51,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:51,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:51" (1/1) ... [2019-10-22 11:21:51,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64fff581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51, skipping insertion in model container [2019-10-22 11:21:51,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:51" (1/1) ... [2019-10-22 11:21:51,323 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:51,365 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:51,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:51,691 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:51,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:51,862 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:51,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51 WrapperNode [2019-10-22 11:21:51,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:51,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:51,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:51,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:51,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51" (1/1) ... [2019-10-22 11:21:51,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51" (1/1) ... [2019-10-22 11:21:51,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:51,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:51,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:51,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:51,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51" (1/1) ... [2019-10-22 11:21:51,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51" (1/1) ... [2019-10-22 11:21:51,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51" (1/1) ... [2019-10-22 11:21:51,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51" (1/1) ... [2019-10-22 11:21:51,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51" (1/1) ... [2019-10-22 11:21:51,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51" (1/1) ... [2019-10-22 11:21:51,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51" (1/1) ... [2019-10-22 11:21:51,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:51,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:51,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:51,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:51,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/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 11:21:51,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-22 11:21:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-22 11:21:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2019-10-22 11:21:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:21:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:21:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:21:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 11:21:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:21:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2019-10-22 11:21:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:52,431 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:52,431 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 11:21:52,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:52 BoogieIcfgContainer [2019-10-22 11:21:52,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:52,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:52,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:52,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:52,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:51" (1/3) ... [2019-10-22 11:21:52,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b2097b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:52, skipping insertion in model container [2019-10-22 11:21:52,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:51" (2/3) ... [2019-10-22 11:21:52,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b2097b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:52, skipping insertion in model container [2019-10-22 11:21:52,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:52" (3/3) ... [2019-10-22 11:21:52,439 INFO L109 eAbstractionObserver]: Analyzing ICFG test-memleak_nexttime.i [2019-10-22 11:21:52,447 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:52,456 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2019-10-22 11:21:52,464 INFO L249 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2019-10-22 11:21:52,479 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:52,480 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:21:52,480 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:52,480 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:52,480 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:52,480 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:52,480 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:52,480 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:52,493 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-10-22 11:21:52,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:21:52,499 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:52,499 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:21:52,502 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:21:52,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:52,506 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2019-10-22 11:21:52,515 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:52,516 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1710157266] [2019-10-22 11:21:52,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf22b23e-82bb-4991-ab29-43b199bd7d5c/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 11:21:52,748 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:52,748 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 11:21:52,753 INFO L168 Benchmark]: Toolchain (without parser) took 1444.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,753 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:52,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 554.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,755 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,755 INFO L168 Benchmark]: Boogie Preprocessor took 25.96 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 11:21:52,756 INFO L168 Benchmark]: RCFGBuilder took 493.99 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,756 INFO L168 Benchmark]: TraceAbstraction took 317.54 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,759 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 554.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.96 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 493.99 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 317.54 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: 12.1 MB). Peak memory consumption was 12.1 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...