./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.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/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 789e632c72b5108c711cbdfccbf18346eae177df ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 789e632c72b5108c711cbdfccbf18346eae177df ..................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:24:47,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:24:47,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:24:47,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:24:47,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:24:47,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:24:47,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:24:47,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:24:47,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:24:47,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:24:47,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:24:47,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:24:47,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:24:47,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:24:47,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:24:47,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:24:47,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:24:47,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:24:47,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:24:47,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:24:47,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:24:47,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:24:47,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:24:47,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:24:47,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:24:47,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:24:47,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:24:47,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:24:47,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:24:47,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:24:47,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:24:47,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:24:47,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:24:47,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:24:47,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:24:47,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:24:47,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:24:47,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:24:47,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:24:47,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:24:47,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:24:47,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-15 23:24:47,899 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:24:47,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:24:47,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:24:47,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:24:47,901 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:24:47,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:24:47,902 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:24:47,902 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:24:47,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:24:47,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:24:47,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:24:47,903 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 23:24:47,903 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 23:24:47,904 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-15 23:24:47,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:24:47,904 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:24:47,904 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:24:47,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:24:47,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:24:47,905 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:24:47,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:24:47,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:24:47,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:24:47,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:24:47,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:24:47,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:24:47,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer 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 -> Automizer 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 -> 789e632c72b5108c711cbdfccbf18346eae177df [2019-11-15 23:24:47,933 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:24:47,942 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:24:47,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:24:47,949 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:24:47,950 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:24:47,950 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i [2019-11-15 23:24:48,009 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/data/84d608161/d7b1e52128544e23844cf699140e16ef/FLAG9e152dca4 [2019-11-15 23:24:48,495 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:24:48,496 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i [2019-11-15 23:24:48,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/data/84d608161/d7b1e52128544e23844cf699140e16ef/FLAG9e152dca4 [2019-11-15 23:24:48,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/data/84d608161/d7b1e52128544e23844cf699140e16ef [2019-11-15 23:24:48,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:24:48,820 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 23:24:48,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:24:48,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:24:48,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:24:48,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:24:48" (1/1) ... [2019-11-15 23:24:48,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15242ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:24:48, skipping insertion in model container [2019-11-15 23:24:48,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:24:48" (1/1) ... [2019-11-15 23:24:48,839 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:24:48,893 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:24:49,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:24:49,362 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:24:49,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:24:49,480 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:24:49,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:24:49 WrapperNode [2019-11-15 23:24:49,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:24:49,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:24:49,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:24:49,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:24:49,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:24:49" (1/1) ... [2019-11-15 23:24:49,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:24:49" (1/1) ... [2019-11-15 23:24:49,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:24:49" (1/1) ... [2019-11-15 23:24:49,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:24:49" (1/1) ... [2019-11-15 23:24:49,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:24:49" (1/1) ... [2019-11-15 23:24:49,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:24:49" (1/1) ... [2019-11-15 23:24:49,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:24:49" (1/1) ... [2019-11-15 23:24:49,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:24:49,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:24:49,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:24:49,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:24:49,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:24:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/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 [2019-11-15 23:24:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 23:24:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:24:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 23:24:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 23:24:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 23:24:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 23:24:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 23:24:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 23:24:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 23:24:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 23:24:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 23:24:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 23:24:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 23:24:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 23:24:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 23:24:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 23:24:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 23:24:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 23:24:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 23:24:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 23:24:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 23:24:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 23:24:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 23:24:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 23:24:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 23:24:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 23:24:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 23:24:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 23:24:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 23:24:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 23:24:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 23:24:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 23:24:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 23:24:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 23:24:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 23:24:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 23:24:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 23:24:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 23:24:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 23:24:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 23:24:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 23:24:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 23:24:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 23:24:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 23:24:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 23:24:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 23:24:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 23:24:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 23:24:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 23:24:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 23:24:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 23:24:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 23:24:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 23:24:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 23:24:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 23:24:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 23:24:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 23:24:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-15 23:24:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 23:24:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 23:24:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 23:24:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 23:24:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 23:24:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 23:24:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 23:24:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 23:24:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 23:24:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 23:24:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 23:24:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 23:24:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 23:24:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 23:24:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 23:24:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 23:24:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 23:24:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 23:24:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 23:24:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 23:24:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 23:24:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 23:24:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 23:24:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 23:24:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 23:24:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 23:24:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 23:24:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 23:24:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 23:24:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 23:24:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 23:24:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 23:24:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 23:24:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 23:24:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 23:24:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 23:24:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 23:24:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 23:24:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 23:24:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 23:24:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 23:24:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 23:24:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 23:24:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 23:24:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 23:24:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 23:24:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 23:24:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 23:24:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-15 23:24:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-15 23:24:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 23:24:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 23:24:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-15 23:24:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:24:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-15 23:24:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:24:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:24:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 23:24:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:24:50,558 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:24:50,558 INFO L284 CfgBuilder]: Removed 17 assume(true) statements. [2019-11-15 23:24:50,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:24:50 BoogieIcfgContainer [2019-11-15 23:24:50,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:24:50,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:24:50,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:24:50,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:24:50,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:24:48" (1/3) ... [2019-11-15 23:24:50,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d7ec26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:24:50, skipping insertion in model container [2019-11-15 23:24:50,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:24:49" (2/3) ... [2019-11-15 23:24:50,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d7ec26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:24:50, skipping insertion in model container [2019-11-15 23:24:50,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:24:50" (3/3) ... [2019-11-15 23:24:50,565 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-1.i [2019-11-15 23:24:50,574 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:24:50,581 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 64 error locations. [2019-11-15 23:24:50,591 INFO L249 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2019-11-15 23:24:50,612 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:24:50,615 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 23:24:50,615 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:24:50,615 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:24:50,616 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:24:50,616 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:24:50,616 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:24:50,617 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:24:50,641 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2019-11-15 23:24:50,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 23:24:50,650 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:50,651 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:50,654 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:50,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:50,667 INFO L82 PathProgramCache]: Analyzing trace with hash 2032838140, now seen corresponding path program 1 times [2019-11-15 23:24:50,675 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:50,675 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345529866] [2019-11-15 23:24:50,675 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:50,675 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:50,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:50,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:50,878 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345529866] [2019-11-15 23:24:50,879 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:50,879 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:24:50,880 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243162368] [2019-11-15 23:24:50,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:24:50,884 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:50,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:24:50,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:24:50,899 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 4 states. [2019-11-15 23:24:51,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:51,415 INFO L93 Difference]: Finished difference Result 145 states and 151 transitions. [2019-11-15 23:24:51,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:24:51,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-15 23:24:51,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:51,427 INFO L225 Difference]: With dead ends: 145 [2019-11-15 23:24:51,428 INFO L226 Difference]: Without dead ends: 141 [2019-11-15 23:24:51,429 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:24:51,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-11-15 23:24:51,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 137. [2019-11-15 23:24:51,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-11-15 23:24:51,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 144 transitions. [2019-11-15 23:24:51,472 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 144 transitions. Word has length 7 [2019-11-15 23:24:51,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:51,472 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 144 transitions. [2019-11-15 23:24:51,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:24:51,473 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 144 transitions. [2019-11-15 23:24:51,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 23:24:51,473 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:51,473 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:51,473 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:51,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:51,474 INFO L82 PathProgramCache]: Analyzing trace with hash 2032838141, now seen corresponding path program 1 times [2019-11-15 23:24:51,474 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:51,474 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134807641] [2019-11-15 23:24:51,474 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:51,474 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:51,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:51,536 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134807641] [2019-11-15 23:24:51,536 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:51,536 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:24:51,536 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204703404] [2019-11-15 23:24:51,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:24:51,538 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:51,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:24:51,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:24:51,539 INFO L87 Difference]: Start difference. First operand 137 states and 144 transitions. Second operand 4 states. [2019-11-15 23:24:51,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:51,913 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2019-11-15 23:24:51,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:24:51,914 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-15 23:24:51,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:51,915 INFO L225 Difference]: With dead ends: 154 [2019-11-15 23:24:51,915 INFO L226 Difference]: Without dead ends: 154 [2019-11-15 23:24:51,916 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:24:51,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-15 23:24:51,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 141. [2019-11-15 23:24:51,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-11-15 23:24:51,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 148 transitions. [2019-11-15 23:24:51,938 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 148 transitions. Word has length 7 [2019-11-15 23:24:51,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:51,941 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 148 transitions. [2019-11-15 23:24:51,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:24:51,941 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2019-11-15 23:24:51,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 23:24:51,942 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:51,942 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:51,943 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:51,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:51,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1101489147, now seen corresponding path program 1 times [2019-11-15 23:24:51,944 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:51,944 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287127271] [2019-11-15 23:24:51,944 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:51,944 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:51,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:52,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:52,103 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287127271] [2019-11-15 23:24:52,104 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:52,104 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:24:52,104 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204130097] [2019-11-15 23:24:52,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:24:52,105 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:52,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:24:52,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:24:52,105 INFO L87 Difference]: Start difference. First operand 141 states and 148 transitions. Second operand 5 states. [2019-11-15 23:24:52,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:52,455 INFO L93 Difference]: Finished difference Result 142 states and 150 transitions. [2019-11-15 23:24:52,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:24:52,456 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-11-15 23:24:52,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:52,458 INFO L225 Difference]: With dead ends: 142 [2019-11-15 23:24:52,458 INFO L226 Difference]: Without dead ends: 142 [2019-11-15 23:24:52,458 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:24:52,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-11-15 23:24:52,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 128. [2019-11-15 23:24:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-11-15 23:24:52,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 137 transitions. [2019-11-15 23:24:52,469 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 137 transitions. Word has length 13 [2019-11-15 23:24:52,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:52,469 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 137 transitions. [2019-11-15 23:24:52,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:24:52,469 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 137 transitions. [2019-11-15 23:24:52,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 23:24:52,470 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:52,470 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:52,471 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:52,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:52,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1101489146, now seen corresponding path program 1 times [2019-11-15 23:24:52,472 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:52,472 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427979351] [2019-11-15 23:24:52,472 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:52,474 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:52,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:52,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:52,616 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427979351] [2019-11-15 23:24:52,616 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:52,617 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:24:52,617 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079455370] [2019-11-15 23:24:52,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:24:52,628 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:52,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:24:52,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:24:52,629 INFO L87 Difference]: Start difference. First operand 128 states and 137 transitions. Second operand 7 states. [2019-11-15 23:24:53,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:53,083 INFO L93 Difference]: Finished difference Result 166 states and 176 transitions. [2019-11-15 23:24:53,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:24:53,083 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-15 23:24:53,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:53,084 INFO L225 Difference]: With dead ends: 166 [2019-11-15 23:24:53,084 INFO L226 Difference]: Without dead ends: 166 [2019-11-15 23:24:53,085 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:24:53,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-11-15 23:24:53,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 137. [2019-11-15 23:24:53,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-11-15 23:24:53,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 149 transitions. [2019-11-15 23:24:53,093 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 149 transitions. Word has length 13 [2019-11-15 23:24:53,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:53,093 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 149 transitions. [2019-11-15 23:24:53,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:24:53,093 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 149 transitions. [2019-11-15 23:24:53,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 23:24:53,094 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:53,094 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:53,094 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:53,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:53,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1969115576, now seen corresponding path program 1 times [2019-11-15 23:24:53,095 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:53,095 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190868384] [2019-11-15 23:24:53,095 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:53,095 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:53,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:53,165 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190868384] [2019-11-15 23:24:53,165 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:53,166 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:24:53,166 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168696299] [2019-11-15 23:24:53,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:24:53,166 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:53,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:24:53,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:24:53,167 INFO L87 Difference]: Start difference. First operand 137 states and 149 transitions. Second operand 6 states. [2019-11-15 23:24:53,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:53,565 INFO L93 Difference]: Finished difference Result 183 states and 199 transitions. [2019-11-15 23:24:53,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:24:53,566 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-15 23:24:53,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:53,567 INFO L225 Difference]: With dead ends: 183 [2019-11-15 23:24:53,567 INFO L226 Difference]: Without dead ends: 183 [2019-11-15 23:24:53,567 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:24:53,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-11-15 23:24:53,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 136. [2019-11-15 23:24:53,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-11-15 23:24:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 147 transitions. [2019-11-15 23:24:53,583 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 147 transitions. Word has length 15 [2019-11-15 23:24:53,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:53,584 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 147 transitions. [2019-11-15 23:24:53,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:24:53,584 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 147 transitions. [2019-11-15 23:24:53,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 23:24:53,585 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:53,585 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:53,586 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:53,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:53,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1969115575, now seen corresponding path program 1 times [2019-11-15 23:24:53,587 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:53,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638519547] [2019-11-15 23:24:53,587 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:53,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:53,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:53,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:53,681 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638519547] [2019-11-15 23:24:53,686 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:53,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:24:53,687 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451764328] [2019-11-15 23:24:53,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:24:53,687 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:53,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:24:53,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:24:53,688 INFO L87 Difference]: Start difference. First operand 136 states and 147 transitions. Second operand 6 states. [2019-11-15 23:24:54,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:54,176 INFO L93 Difference]: Finished difference Result 206 states and 223 transitions. [2019-11-15 23:24:54,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:24:54,177 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-15 23:24:54,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:54,178 INFO L225 Difference]: With dead ends: 206 [2019-11-15 23:24:54,178 INFO L226 Difference]: Without dead ends: 206 [2019-11-15 23:24:54,179 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:24:54,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2019-11-15 23:24:54,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 135. [2019-11-15 23:24:54,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-11-15 23:24:54,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 145 transitions. [2019-11-15 23:24:54,190 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 145 transitions. Word has length 15 [2019-11-15 23:24:54,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:54,190 INFO L462 AbstractCegarLoop]: Abstraction has 135 states and 145 transitions. [2019-11-15 23:24:54,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:24:54,191 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 145 transitions. [2019-11-15 23:24:54,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 23:24:54,191 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:54,191 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:54,192 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:54,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:54,192 INFO L82 PathProgramCache]: Analyzing trace with hash -367902966, now seen corresponding path program 1 times [2019-11-15 23:24:54,193 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:54,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190687883] [2019-11-15 23:24:54,193 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:54,193 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:54,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:54,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:54,364 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190687883] [2019-11-15 23:24:54,364 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:54,364 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-15 23:24:54,365 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963546133] [2019-11-15 23:24:54,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 23:24:54,365 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:54,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 23:24:54,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:24:54,365 INFO L87 Difference]: Start difference. First operand 135 states and 145 transitions. Second operand 10 states. [2019-11-15 23:24:54,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:54,947 INFO L93 Difference]: Finished difference Result 147 states and 157 transitions. [2019-11-15 23:24:54,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 23:24:54,947 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2019-11-15 23:24:54,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:54,948 INFO L225 Difference]: With dead ends: 147 [2019-11-15 23:24:54,949 INFO L226 Difference]: Without dead ends: 147 [2019-11-15 23:24:54,949 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-11-15 23:24:54,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-11-15 23:24:54,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 134. [2019-11-15 23:24:54,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-15 23:24:54,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 144 transitions. [2019-11-15 23:24:54,955 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 144 transitions. Word has length 19 [2019-11-15 23:24:54,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:54,955 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 144 transitions. [2019-11-15 23:24:54,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 23:24:54,955 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 144 transitions. [2019-11-15 23:24:54,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 23:24:54,956 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:54,956 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:54,957 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:54,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:54,957 INFO L82 PathProgramCache]: Analyzing trace with hash -367902965, now seen corresponding path program 1 times [2019-11-15 23:24:54,957 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:54,967 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023934002] [2019-11-15 23:24:54,967 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:54,967 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:54,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:55,166 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023934002] [2019-11-15 23:24:55,166 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:55,166 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-15 23:24:55,166 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48946408] [2019-11-15 23:24:55,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 23:24:55,167 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:55,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 23:24:55,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:24:55,167 INFO L87 Difference]: Start difference. First operand 134 states and 144 transitions. Second operand 11 states. [2019-11-15 23:24:56,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:56,101 INFO L93 Difference]: Finished difference Result 158 states and 169 transitions. [2019-11-15 23:24:56,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-15 23:24:56,101 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2019-11-15 23:24:56,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:56,102 INFO L225 Difference]: With dead ends: 158 [2019-11-15 23:24:56,102 INFO L226 Difference]: Without dead ends: 158 [2019-11-15 23:24:56,103 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2019-11-15 23:24:56,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-15 23:24:56,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 136. [2019-11-15 23:24:56,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-11-15 23:24:56,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 146 transitions. [2019-11-15 23:24:56,108 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 146 transitions. Word has length 19 [2019-11-15 23:24:56,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:56,108 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 146 transitions. [2019-11-15 23:24:56,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 23:24:56,109 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 146 transitions. [2019-11-15 23:24:56,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 23:24:56,115 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:56,115 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] [2019-11-15 23:24:56,115 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:56,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:56,116 INFO L82 PathProgramCache]: Analyzing trace with hash -2104302876, now seen corresponding path program 1 times [2019-11-15 23:24:56,116 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:56,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9173327] [2019-11-15 23:24:56,116 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:56,116 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:56,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:56,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:56,173 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9173327] [2019-11-15 23:24:56,173 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:56,173 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:24:56,173 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951490483] [2019-11-15 23:24:56,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:24:56,174 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:56,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:24:56,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:24:56,174 INFO L87 Difference]: Start difference. First operand 136 states and 146 transitions. Second operand 5 states. [2019-11-15 23:24:56,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:56,416 INFO L93 Difference]: Finished difference Result 157 states and 166 transitions. [2019-11-15 23:24:56,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:24:56,416 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-15 23:24:56,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:56,417 INFO L225 Difference]: With dead ends: 157 [2019-11-15 23:24:56,417 INFO L226 Difference]: Without dead ends: 157 [2019-11-15 23:24:56,418 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:24:56,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-15 23:24:56,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 136. [2019-11-15 23:24:56,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-11-15 23:24:56,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 144 transitions. [2019-11-15 23:24:56,422 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 144 transitions. Word has length 22 [2019-11-15 23:24:56,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:56,423 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 144 transitions. [2019-11-15 23:24:56,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:24:56,423 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 144 transitions. [2019-11-15 23:24:56,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 23:24:56,424 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:56,424 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:56,424 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:56,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:56,425 INFO L82 PathProgramCache]: Analyzing trace with hash 85533368, now seen corresponding path program 1 times [2019-11-15 23:24:56,425 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:56,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360591418] [2019-11-15 23:24:56,425 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:56,425 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:56,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:56,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:56,507 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360591418] [2019-11-15 23:24:56,507 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19739413] [2019-11-15 23:24:56,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/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 [2019-11-15 23:24:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:56,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-15 23:24:56,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:24:56,715 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-15 23:24:56,715 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:24:56,732 INFO L567 ElimStorePlain]: treesize reduction 3, result has 88.0 percent of original size [2019-11-15 23:24:56,735 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-15 23:24:56,735 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:24:56,741 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:24:56,741 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:24:56,741 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:18 [2019-11-15 23:24:56,762 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:24:56,764 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-11-15 23:24:56,764 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:24:56,800 INFO L567 ElimStorePlain]: treesize reduction 5, result has 88.9 percent of original size [2019-11-15 23:24:56,805 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:24:56,806 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-11-15 23:24:56,807 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:24:56,823 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:24:56,824 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:24:56,824 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:36 [2019-11-15 23:24:56,862 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:24:56,863 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:24:56,864 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:24:56,866 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2019-11-15 23:24:56,866 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:24:56,878 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:24:56,888 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:24:56,890 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:24:56,890 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:24:56,891 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2019-11-15 23:24:56,892 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:24:56,905 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:24:56,905 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:24:56,905 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:74, output treesize:36 [2019-11-15 23:24:56,964 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-11-15 23:24:56,965 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:24:56,973 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:24:56,983 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:24:56,983 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2019-11-15 23:24:56,983 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:24:56,986 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:24:56,987 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:24:56,987 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:7 [2019-11-15 23:24:56,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:56,990 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:24:56,991 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2019-11-15 23:24:56,991 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047433438] [2019-11-15 23:24:56,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 23:24:56,991 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:56,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 23:24:56,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:24:56,992 INFO L87 Difference]: Start difference. First operand 136 states and 144 transitions. Second operand 11 states. [2019-11-15 23:24:57,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:57,578 INFO L93 Difference]: Finished difference Result 190 states and 203 transitions. [2019-11-15 23:24:57,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:24:57,578 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2019-11-15 23:24:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:57,579 INFO L225 Difference]: With dead ends: 190 [2019-11-15 23:24:57,579 INFO L226 Difference]: Without dead ends: 190 [2019-11-15 23:24:57,580 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2019-11-15 23:24:57,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2019-11-15 23:24:57,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 150. [2019-11-15 23:24:57,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-15 23:24:57,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 160 transitions. [2019-11-15 23:24:57,584 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 160 transitions. Word has length 25 [2019-11-15 23:24:57,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:57,585 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 160 transitions. [2019-11-15 23:24:57,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 23:24:57,585 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 160 transitions. [2019-11-15 23:24:57,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 23:24:57,586 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:57,586 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:57,786 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:24:57,787 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:57,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:57,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1467300694, now seen corresponding path program 1 times [2019-11-15 23:24:57,789 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:57,789 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796187201] [2019-11-15 23:24:57,789 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:57,789 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:57,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:57,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:57,886 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796187201] [2019-11-15 23:24:57,886 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:57,887 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:24:57,887 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775556621] [2019-11-15 23:24:57,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:24:57,887 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:57,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:24:57,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:24:57,888 INFO L87 Difference]: Start difference. First operand 150 states and 160 transitions. Second operand 6 states. [2019-11-15 23:24:58,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:58,187 INFO L93 Difference]: Finished difference Result 153 states and 161 transitions. [2019-11-15 23:24:58,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:24:58,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-11-15 23:24:58,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:58,189 INFO L225 Difference]: With dead ends: 153 [2019-11-15 23:24:58,189 INFO L226 Difference]: Without dead ends: 153 [2019-11-15 23:24:58,190 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:24:58,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-15 23:24:58,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 149. [2019-11-15 23:24:58,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-15 23:24:58,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 157 transitions. [2019-11-15 23:24:58,195 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 157 transitions. Word has length 26 [2019-11-15 23:24:58,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:58,195 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 157 transitions. [2019-11-15 23:24:58,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:24:58,196 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 157 transitions. [2019-11-15 23:24:58,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 23:24:58,199 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:58,199 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:58,199 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:58,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:58,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1487911483, now seen corresponding path program 1 times [2019-11-15 23:24:58,200 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:58,200 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021038395] [2019-11-15 23:24:58,200 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:58,201 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:58,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:58,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:58,268 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021038395] [2019-11-15 23:24:58,268 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:58,268 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:24:58,268 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614066275] [2019-11-15 23:24:58,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:24:58,269 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:58,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:24:58,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:24:58,269 INFO L87 Difference]: Start difference. First operand 149 states and 157 transitions. Second operand 6 states. [2019-11-15 23:24:58,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:58,671 INFO L93 Difference]: Finished difference Result 213 states and 226 transitions. [2019-11-15 23:24:58,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:24:58,672 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-11-15 23:24:58,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:58,673 INFO L225 Difference]: With dead ends: 213 [2019-11-15 23:24:58,673 INFO L226 Difference]: Without dead ends: 213 [2019-11-15 23:24:58,674 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:24:58,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2019-11-15 23:24:58,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 148. [2019-11-15 23:24:58,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-11-15 23:24:58,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 156 transitions. [2019-11-15 23:24:58,678 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 156 transitions. Word has length 26 [2019-11-15 23:24:58,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:58,678 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 156 transitions. [2019-11-15 23:24:58,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:24:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 156 transitions. [2019-11-15 23:24:58,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 23:24:58,679 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:58,679 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:58,679 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:58,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:58,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1487911482, now seen corresponding path program 1 times [2019-11-15 23:24:58,680 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:58,680 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020978362] [2019-11-15 23:24:58,680 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:58,680 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:58,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:58,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:58,768 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020978362] [2019-11-15 23:24:58,768 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:58,768 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:24:58,768 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321200219] [2019-11-15 23:24:58,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:24:58,768 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:58,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:24:58,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:24:58,769 INFO L87 Difference]: Start difference. First operand 148 states and 156 transitions. Second operand 6 states. [2019-11-15 23:24:59,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:59,155 INFO L93 Difference]: Finished difference Result 239 states and 253 transitions. [2019-11-15 23:24:59,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:24:59,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-11-15 23:24:59,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:59,156 INFO L225 Difference]: With dead ends: 239 [2019-11-15 23:24:59,157 INFO L226 Difference]: Without dead ends: 239 [2019-11-15 23:24:59,157 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:24:59,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-11-15 23:24:59,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 147. [2019-11-15 23:24:59,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-11-15 23:24:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 155 transitions. [2019-11-15 23:24:59,161 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 155 transitions. Word has length 26 [2019-11-15 23:24:59,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:59,161 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 155 transitions. [2019-11-15 23:24:59,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:24:59,162 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 155 transitions. [2019-11-15 23:24:59,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 23:24:59,162 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:59,163 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:59,163 INFO L410 AbstractCegarLoop]: === Iteration 14 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:59,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:59,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1452074887, now seen corresponding path program 1 times [2019-11-15 23:24:59,163 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:59,164 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351553098] [2019-11-15 23:24:59,164 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:59,164 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:59,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:24:59,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:24:59,361 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351553098] [2019-11-15 23:24:59,361 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:24:59,361 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-15 23:24:59,361 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919328534] [2019-11-15 23:24:59,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-15 23:24:59,361 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:24:59,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-15 23:24:59,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-11-15 23:24:59,362 INFO L87 Difference]: Start difference. First operand 147 states and 155 transitions. Second operand 13 states. [2019-11-15 23:24:59,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:24:59,955 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2019-11-15 23:24:59,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-15 23:24:59,956 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2019-11-15 23:24:59,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:24:59,957 INFO L225 Difference]: With dead ends: 146 [2019-11-15 23:24:59,957 INFO L226 Difference]: Without dead ends: 146 [2019-11-15 23:24:59,957 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2019-11-15 23:24:59,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-15 23:24:59,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-11-15 23:24:59,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-11-15 23:24:59,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 154 transitions. [2019-11-15 23:24:59,961 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 154 transitions. Word has length 30 [2019-11-15 23:24:59,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:24:59,962 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 154 transitions. [2019-11-15 23:24:59,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-15 23:24:59,962 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 154 transitions. [2019-11-15 23:24:59,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 23:24:59,963 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:24:59,963 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:24:59,963 INFO L410 AbstractCegarLoop]: === Iteration 15 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:24:59,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:24:59,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1452074888, now seen corresponding path program 1 times [2019-11-15 23:24:59,964 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:24:59,964 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683164034] [2019-11-15 23:24:59,964 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:59,964 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:24:59,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:24:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:00,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:25:00,184 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683164034] [2019-11-15 23:25:00,184 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:25:00,184 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-15 23:25:00,184 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024198020] [2019-11-15 23:25:00,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-15 23:25:00,185 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:25:00,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-15 23:25:00,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-11-15 23:25:00,186 INFO L87 Difference]: Start difference. First operand 146 states and 154 transitions. Second operand 14 states. [2019-11-15 23:25:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:25:00,869 INFO L93 Difference]: Finished difference Result 141 states and 149 transitions. [2019-11-15 23:25:00,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-15 23:25:00,869 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 30 [2019-11-15 23:25:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:25:00,870 INFO L225 Difference]: With dead ends: 141 [2019-11-15 23:25:00,870 INFO L226 Difference]: Without dead ends: 141 [2019-11-15 23:25:00,871 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2019-11-15 23:25:00,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-11-15 23:25:00,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 124. [2019-11-15 23:25:00,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-11-15 23:25:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 131 transitions. [2019-11-15 23:25:00,875 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 131 transitions. Word has length 30 [2019-11-15 23:25:00,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:25:00,875 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 131 transitions. [2019-11-15 23:25:00,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-15 23:25:00,875 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 131 transitions. [2019-11-15 23:25:00,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 23:25:00,876 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:25:00,876 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:25:00,876 INFO L410 AbstractCegarLoop]: === Iteration 16 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:25:00,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:25:00,877 INFO L82 PathProgramCache]: Analyzing trace with hash -632721643, now seen corresponding path program 1 times [2019-11-15 23:25:00,877 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:25:00,877 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874000089] [2019-11-15 23:25:00,877 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:00,877 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:00,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:25:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:00,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 23:25:00,918 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874000089] [2019-11-15 23:25:00,918 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:25:00,918 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:25:00,918 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430251893] [2019-11-15 23:25:00,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:25:00,919 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:25:00,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:25:00,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:25:00,919 INFO L87 Difference]: Start difference. First operand 124 states and 131 transitions. Second operand 4 states. [2019-11-15 23:25:01,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:25:01,045 INFO L93 Difference]: Finished difference Result 126 states and 133 transitions. [2019-11-15 23:25:01,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:25:01,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-15 23:25:01,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:25:01,046 INFO L225 Difference]: With dead ends: 126 [2019-11-15 23:25:01,046 INFO L226 Difference]: Without dead ends: 126 [2019-11-15 23:25:01,047 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:25:01,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-11-15 23:25:01,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-11-15 23:25:01,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-15 23:25:01,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 133 transitions. [2019-11-15 23:25:01,050 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 133 transitions. Word has length 31 [2019-11-15 23:25:01,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:25:01,050 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 133 transitions. [2019-11-15 23:25:01,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:25:01,051 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 133 transitions. [2019-11-15 23:25:01,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 23:25:01,052 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:25:01,052 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:25:01,052 INFO L410 AbstractCegarLoop]: === Iteration 17 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:25:01,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:25:01,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1156181118, now seen corresponding path program 1 times [2019-11-15 23:25:01,052 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:25:01,053 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660920275] [2019-11-15 23:25:01,053 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:01,053 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:01,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:25:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:01,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:25:01,168 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660920275] [2019-11-15 23:25:01,168 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092546266] [2019-11-15 23:25:01,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:25:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:01,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 23:25:01,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:25:01,305 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-15 23:25:01,306 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:01,309 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:01,309 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:25:01,309 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-11-15 23:25:01,314 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2019-11-15 23:25:01,314 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:01,316 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:01,316 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:25:01,316 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2019-11-15 23:25:01,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 23:25:01,328 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 23:25:01,328 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 10 [2019-11-15 23:25:01,328 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799108576] [2019-11-15 23:25:01,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:25:01,329 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:25:01,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:25:01,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:25:01,329 INFO L87 Difference]: Start difference. First operand 126 states and 133 transitions. Second operand 4 states. [2019-11-15 23:25:01,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:25:01,432 INFO L93 Difference]: Finished difference Result 135 states and 142 transitions. [2019-11-15 23:25:01,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:25:01,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-11-15 23:25:01,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:25:01,433 INFO L225 Difference]: With dead ends: 135 [2019-11-15 23:25:01,433 INFO L226 Difference]: Without dead ends: 135 [2019-11-15 23:25:01,434 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:25:01,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-11-15 23:25:01,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 129. [2019-11-15 23:25:01,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-11-15 23:25:01,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 136 transitions. [2019-11-15 23:25:01,437 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 136 transitions. Word has length 33 [2019-11-15 23:25:01,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:25:01,437 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 136 transitions. [2019-11-15 23:25:01,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:25:01,437 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 136 transitions. [2019-11-15 23:25:01,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-15 23:25:01,438 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:25:01,438 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:25:01,643 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:25:01,644 INFO L410 AbstractCegarLoop]: === Iteration 18 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:25:01,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:25:01,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1201292218, now seen corresponding path program 1 times [2019-11-15 23:25:01,644 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:25:01,644 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140821088] [2019-11-15 23:25:01,644 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:01,644 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:01,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:25:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:01,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:25:01,802 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140821088] [2019-11-15 23:25:01,802 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291940167] [2019-11-15 23:25:01,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:25:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:01,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 32 conjunts are in the unsatisfiable core [2019-11-15 23:25:01,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:25:01,929 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2019-11-15 23:25:01,929 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:01,930 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:01,931 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:25:01,931 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2019-11-15 23:25:02,070 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:02,071 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2019-11-15 23:25:02,071 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-11-15 23:25:02,089 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:02,095 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:02,095 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2019-11-15 23:25:02,095 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-11-15 23:25:02,106 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:02,106 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:25:02,107 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:25:02,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:25:02,112 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2019-11-15 23:25:02,112 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:37 [2019-11-15 23:25:02,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:25:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:25:02,227 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:25:02,227 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 17 [2019-11-15 23:25:02,227 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198798491] [2019-11-15 23:25:02,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-15 23:25:02,228 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:25:02,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-15 23:25:02,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2019-11-15 23:25:02,228 INFO L87 Difference]: Start difference. First operand 129 states and 136 transitions. Second operand 17 states. [2019-11-15 23:25:03,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:25:03,422 INFO L93 Difference]: Finished difference Result 182 states and 192 transitions. [2019-11-15 23:25:03,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-15 23:25:03,422 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 34 [2019-11-15 23:25:03,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:25:03,423 INFO L225 Difference]: With dead ends: 182 [2019-11-15 23:25:03,423 INFO L226 Difference]: Without dead ends: 182 [2019-11-15 23:25:03,424 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=723, Unknown=0, NotChecked=0, Total=870 [2019-11-15 23:25:03,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-11-15 23:25:03,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 140. [2019-11-15 23:25:03,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-15 23:25:03,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 149 transitions. [2019-11-15 23:25:03,427 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 149 transitions. Word has length 34 [2019-11-15 23:25:03,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:25:03,427 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 149 transitions. [2019-11-15 23:25:03,427 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-15 23:25:03,427 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 149 transitions. [2019-11-15 23:25:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-15 23:25:03,428 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:25:03,428 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:25:03,628 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:25:03,629 INFO L410 AbstractCegarLoop]: === Iteration 19 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:25:03,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:25:03,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1414647280, now seen corresponding path program 1 times [2019-11-15 23:25:03,629 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:25:03,629 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698799049] [2019-11-15 23:25:03,629 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:03,629 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:03,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:25:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:03,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 23:25:03,713 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698799049] [2019-11-15 23:25:03,713 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933950873] [2019-11-15 23:25:03,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:25:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:03,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 23:25:03,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:25:03,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 23:25:03,913 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:25:03,914 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2019-11-15 23:25:03,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162218663] [2019-11-15 23:25:03,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:25:03,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:25:03,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:25:03,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:25:03,917 INFO L87 Difference]: Start difference. First operand 140 states and 149 transitions. Second operand 7 states. [2019-11-15 23:25:04,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:25:04,083 INFO L93 Difference]: Finished difference Result 148 states and 156 transitions. [2019-11-15 23:25:04,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:25:04,083 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-11-15 23:25:04,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:25:04,084 INFO L225 Difference]: With dead ends: 148 [2019-11-15 23:25:04,084 INFO L226 Difference]: Without dead ends: 125 [2019-11-15 23:25:04,084 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:25:04,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-15 23:25:04,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-11-15 23:25:04,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-15 23:25:04,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 133 transitions. [2019-11-15 23:25:04,087 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 133 transitions. Word has length 35 [2019-11-15 23:25:04,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:25:04,088 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 133 transitions. [2019-11-15 23:25:04,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:25:04,088 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 133 transitions. [2019-11-15 23:25:04,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-15 23:25:04,088 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:25:04,088 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:25:04,293 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:25:04,295 INFO L410 AbstractCegarLoop]: === Iteration 20 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:25:04,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:25:04,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1427438640, now seen corresponding path program 1 times [2019-11-15 23:25:04,296 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:25:04,296 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709805449] [2019-11-15 23:25:04,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:04,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:04,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:25:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:04,529 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:25:04,529 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709805449] [2019-11-15 23:25:04,529 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608864456] [2019-11-15 23:25:04,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:25:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:04,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-15 23:25:04,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:25:04,720 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:04,721 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-15 23:25:04,721 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:04,759 INFO L567 ElimStorePlain]: treesize reduction 14, result has 60.0 percent of original size [2019-11-15 23:25:04,759 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:25:04,760 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2019-11-15 23:25:04,806 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-15 23:25:04,806 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:04,821 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:04,822 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:25:04,822 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2019-11-15 23:25:04,921 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:04,921 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 57 [2019-11-15 23:25:04,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-15 23:25:04,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:25:04,923 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:25:04,924 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2019-11-15 23:25:04,957 INFO L567 ElimStorePlain]: treesize reduction 136, result has 24.0 percent of original size [2019-11-15 23:25:04,958 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:25:04,958 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:42 [2019-11-15 23:25:05,117 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:05,117 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 110 [2019-11-15 23:25:05,118 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:05,151 INFO L567 ElimStorePlain]: treesize reduction 54, result has 44.9 percent of original size [2019-11-15 23:25:05,151 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:25:05,152 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:54, output treesize:29 [2019-11-15 23:25:05,237 INFO L341 Elim1Store]: treesize reduction 38, result has 56.3 percent of original size [2019-11-15 23:25:05,237 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 79 [2019-11-15 23:25:05,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-15 23:25:05,239 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:25:05,239 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:25:05,240 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2019-11-15 23:25:05,273 INFO L567 ElimStorePlain]: treesize reduction 82, result has 29.9 percent of original size [2019-11-15 23:25:05,273 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:25:05,274 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:65, output treesize:34 [2019-11-15 23:25:05,386 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:05,386 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2019-11-15 23:25:05,387 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:05,400 INFO L567 ElimStorePlain]: treesize reduction 12, result has 55.6 percent of original size [2019-11-15 23:25:05,401 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:25:05,401 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:41, output treesize:15 [2019-11-15 23:25:05,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:25:05,502 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:25:05,502 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2019-11-15 23:25:05,503 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15331686] [2019-11-15 23:25:05,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-15 23:25:05,503 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:25:05,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-15 23:25:05,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2019-11-15 23:25:05,504 INFO L87 Difference]: Start difference. First operand 125 states and 133 transitions. Second operand 25 states. [2019-11-15 23:25:06,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:25:06,640 INFO L93 Difference]: Finished difference Result 220 states and 235 transitions. [2019-11-15 23:25:06,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-15 23:25:06,641 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 45 [2019-11-15 23:25:06,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:25:06,642 INFO L225 Difference]: With dead ends: 220 [2019-11-15 23:25:06,643 INFO L226 Difference]: Without dead ends: 220 [2019-11-15 23:25:06,644 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=315, Invalid=1165, Unknown=2, NotChecked=0, Total=1482 [2019-11-15 23:25:06,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-11-15 23:25:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 158. [2019-11-15 23:25:06,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-15 23:25:06,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 170 transitions. [2019-11-15 23:25:06,649 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 170 transitions. Word has length 45 [2019-11-15 23:25:06,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:25:06,649 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 170 transitions. [2019-11-15 23:25:06,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-15 23:25:06,649 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 170 transitions. [2019-11-15 23:25:06,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-15 23:25:06,651 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:25:06,651 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:25:06,860 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:25:06,861 INFO L410 AbstractCegarLoop]: === Iteration 21 === [mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION]=== [2019-11-15 23:25:06,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:25:06,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1427438639, now seen corresponding path program 1 times [2019-11-15 23:25:06,862 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:25:06,862 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641864326] [2019-11-15 23:25:06,862 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:06,862 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:06,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:25:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:07,215 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:25:07,216 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641864326] [2019-11-15 23:25:07,216 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61752653] [2019-11-15 23:25:07,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:25:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:07,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 45 conjunts are in the unsatisfiable core [2019-11-15 23:25:07,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:25:07,480 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:07,480 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 42 [2019-11-15 23:25:07,480 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:07,512 INFO L567 ElimStorePlain]: treesize reduction 16, result has 74.6 percent of original size [2019-11-15 23:25:07,528 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:07,529 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 42 [2019-11-15 23:25:07,529 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:07,561 INFO L567 ElimStorePlain]: treesize reduction 24, result has 64.2 percent of original size [2019-11-15 23:25:07,561 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:25:07,561 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:43 [2019-11-15 23:25:07,598 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:25:07,614 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:25:07,618 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 68 [2019-11-15 23:25:07,619 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:07,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:25:07,627 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:25:07,635 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:07,636 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 84 [2019-11-15 23:25:07,636 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:07,722 INFO L567 ElimStorePlain]: treesize reduction 32, result has 78.4 percent of original size [2019-11-15 23:25:07,728 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:25:07,735 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:25:07,742 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:07,743 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 60 [2019-11-15 23:25:07,743 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:07,748 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 23:25:07,750 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 34 [2019-11-15 23:25:07,750 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:07,815 INFO L567 ElimStorePlain]: treesize reduction 12, result has 86.0 percent of original size [2019-11-15 23:25:07,815 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-15 23:25:07,815 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:170, output treesize:74 [2019-11-15 23:25:07,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:25:08,107 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:25:08,111 INFO L392 ElimStorePlain]: Different costs {0=[v_prenex_2, v_prenex_3], 2=[|#memory_$Pointer$.base|, |#memory_$Pointer$.offset|]} [2019-11-15 23:25:08,120 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2019-11-15 23:25:08,121 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:08,138 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:08,142 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2019-11-15 23:25:08,142 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:08,162 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:08,171 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:08,171 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 62 [2019-11-15 23:25:08,172 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-15 23:25:08,190 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:25:08,391 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:25:08,392 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:236) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:74) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:275) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) 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.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) ... 21 more [2019-11-15 23:25:08,396 INFO L168 Benchmark]: Toolchain (without parser) took 19577.02 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 301.5 MB). Free memory was 947.4 MB in the beginning and 1.1 GB in the end (delta: -137.9 MB). Peak memory consumption was 163.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:08,396 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:25:08,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 947.4 MB in the beginning and 1.2 GB in the end (delta: -205.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:08,397 INFO L168 Benchmark]: Boogie Preprocessor took 110.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:08,397 INFO L168 Benchmark]: RCFGBuilder took 967.27 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: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:08,398 INFO L168 Benchmark]: TraceAbstraction took 17835.37 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 132.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -4.5 MB). Peak memory consumption was 128.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:08,399 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 660.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 947.4 MB in the beginning and 1.2 GB in the end (delta: -205.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 110.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 967.27 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: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17835.37 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 132.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -4.5 MB). Peak memory consumption was 128.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: expected NNF de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.UnsupportedOperationException: expected NNF: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 23:25:10,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:25:10,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:25:10,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:25:10,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:25:10,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:25:10,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:25:10,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:25:10,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:25:10,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:25:10,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:25:10,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:25:10,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:25:10,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:25:10,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:25:10,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:25:10,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:25:10,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:25:10,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:25:10,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:25:10,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:25:10,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:25:10,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:25:10,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:25:10,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:25:10,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:25:10,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:25:10,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:25:10,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:25:10,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:25:10,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:25:10,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:25:10,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:25:10,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:25:10,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:25:10,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:25:10,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:25:10,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:25:10,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:25:10,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:25:10,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:25:10,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-15 23:25:10,720 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:25:10,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:25:10,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:25:10,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:25:10,721 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:25:10,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:25:10,722 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:25:10,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:25:10,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:25:10,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:25:10,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:25:10,723 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 23:25:10,723 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 23:25:10,723 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-15 23:25:10,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:25:10,724 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:25:10,724 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:25:10,724 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:25:10,725 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:25:10,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:25:10,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:25:10,725 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:25:10,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:25:10,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:25:10,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:25:10,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:25:10,726 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:25:10,727 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:25:10,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:25:10,727 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/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer 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 -> Automizer 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 -> 789e632c72b5108c711cbdfccbf18346eae177df [2019-11-15 23:25:10,756 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:25:10,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:25:10,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:25:10,773 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:25:10,773 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:25:10,774 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i [2019-11-15 23:25:10,832 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/data/7fb40251e/6322788d575e409fa5568e94e0722177/FLAGff119ac0c [2019-11-15 23:25:11,342 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:25:11,346 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i [2019-11-15 23:25:11,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/data/7fb40251e/6322788d575e409fa5568e94e0722177/FLAGff119ac0c [2019-11-15 23:25:11,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/data/7fb40251e/6322788d575e409fa5568e94e0722177 [2019-11-15 23:25:11,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:25:11,848 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 23:25:11,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:25:11,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:25:11,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:25:11,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:25:11" (1/1) ... [2019-11-15 23:25:11,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@796415a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:11, skipping insertion in model container [2019-11-15 23:25:11,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:25:11" (1/1) ... [2019-11-15 23:25:11,861 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:25:11,900 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:25:12,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:25:12,291 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:25:12,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:25:12,381 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:25:12,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:12 WrapperNode [2019-11-15 23:25:12,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:25:12,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:25:12,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:25:12,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:25:12,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:12" (1/1) ... [2019-11-15 23:25:12,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:12" (1/1) ... [2019-11-15 23:25:12,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:12" (1/1) ... [2019-11-15 23:25:12,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:12" (1/1) ... [2019-11-15 23:25:12,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:12" (1/1) ... [2019-11-15 23:25:12,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:12" (1/1) ... [2019-11-15 23:25:12,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:12" (1/1) ... [2019-11-15 23:25:12,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:25:12,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:25:12,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:25:12,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:25:12,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/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 [2019-11-15 23:25:12,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 23:25:12,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:25:12,528 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 23:25:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 23:25:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 23:25:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 23:25:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 23:25:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 23:25:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 23:25:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 23:25:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 23:25:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 23:25:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 23:25:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 23:25:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 23:25:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 23:25:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 23:25:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 23:25:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 23:25:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 23:25:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 23:25:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 23:25:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 23:25:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 23:25:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 23:25:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 23:25:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 23:25:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 23:25:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 23:25:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 23:25:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 23:25:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 23:25:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 23:25:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 23:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 23:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 23:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 23:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 23:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 23:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 23:25:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 23:25:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 23:25:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 23:25:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 23:25:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 23:25:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 23:25:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 23:25:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 23:25:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 23:25:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 23:25:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 23:25:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 23:25:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 23:25:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 23:25:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 23:25:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 23:25:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 23:25:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-15 23:25:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 23:25:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 23:25:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 23:25:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 23:25:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 23:25:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 23:25:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 23:25:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 23:25:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 23:25:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 23:25:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 23:25:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 23:25:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 23:25:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 23:25:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 23:25:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 23:25:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 23:25:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 23:25:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 23:25:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 23:25:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 23:25:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 23:25:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 23:25:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 23:25:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 23:25:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 23:25:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 23:25:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 23:25:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 23:25:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 23:25:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 23:25:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 23:25:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 23:25:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 23:25:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 23:25:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 23:25:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 23:25:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 23:25:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 23:25:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 23:25:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 23:25:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 23:25:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 23:25:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 23:25:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 23:25:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 23:25:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 23:25:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 23:25:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-15 23:25:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-15 23:25:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 23:25:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 23:25:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-15 23:25:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 23:25:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-15 23:25:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 23:25:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:25:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 23:25:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:25:13,514 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:25:13,515 INFO L284 CfgBuilder]: Removed 17 assume(true) statements. [2019-11-15 23:25:13,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:25:13 BoogieIcfgContainer [2019-11-15 23:25:13,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:25:13,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:25:13,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:25:13,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:25:13,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:25:11" (1/3) ... [2019-11-15 23:25:13,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639139db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:25:13, skipping insertion in model container [2019-11-15 23:25:13,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:12" (2/3) ... [2019-11-15 23:25:13,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639139db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:25:13, skipping insertion in model container [2019-11-15 23:25:13,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:25:13" (3/3) ... [2019-11-15 23:25:13,524 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-1.i [2019-11-15 23:25:13,533 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:25:13,540 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 64 error locations. [2019-11-15 23:25:13,550 INFO L249 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2019-11-15 23:25:13,568 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:25:13,568 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 23:25:13,568 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:25:13,569 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:25:13,569 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:25:13,569 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:25:13,569 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:25:13,570 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:25:13,587 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2019-11-15 23:25:13,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 23:25:13,595 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:25:13,596 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:25:13,598 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr58REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION]=== [2019-11-15 23:25:13,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:25:13,604 INFO L82 PathProgramCache]: Analyzing trace with hash 257769274, now seen corresponding path program 1 times [2019-11-15 23:25:13,613 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:25:13,614 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [931898619] [2019-11-15 23:25:13,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b40e8095-b256-46c4-9296-8988584325ed/bin/uautomizer/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 [2019-11-15 23:25:13,849 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:25:13,849 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort C_DOUBLE 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 23:25:13,853 INFO L168 Benchmark]: Toolchain (without parser) took 2004.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 940.3 MB in the beginning and 1.0 GB in the end (delta: -101.2 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:13,854 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:25:13,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:13,855 INFO L168 Benchmark]: Boogie Preprocessor took 80.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:13,856 INFO L168 Benchmark]: RCFGBuilder took 1052.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:13,857 INFO L168 Benchmark]: TraceAbstraction took 334.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:13,864 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 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 533.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1052.32 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: 70.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 334.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Sort C_DOUBLE 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...