./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/selectionsort-alloca-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_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/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 82679d367c32c359f0c9c81b27b57deea5682b2b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:47:09,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:47:09,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:47:09,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:47:09,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:47:09,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:47:09,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:47:09,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:47:09,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:47:09,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:47:09,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:47:09,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:47:09,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:47:09,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:47:09,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:47:09,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:47:09,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:47:09,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:47:09,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:47:09,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:47:09,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:47:09,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:47:09,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:47:09,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:47:09,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:47:09,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:47:09,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:47:09,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:47:09,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:47:09,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:47:09,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:47:09,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:47:09,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:47:09,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:47:09,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:47:09,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:47:09,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:47:09,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:47:09,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:47:09,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:47:09,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:47:09,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-15 23:47:09,965 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:47:09,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:47:09,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:47:09,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:47:09,977 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:47:09,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:47:09,978 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:47:09,978 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:47:09,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:47:09,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:47:09,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:47:09,979 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 23:47:09,979 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 23:47:09,979 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-15 23:47:09,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:47:09,980 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:47:09,980 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:47:09,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:47:09,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:47:09,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:47:09,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:47:09,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:47:09,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:47:09,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:47:09,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:47:09,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:47:09,984 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_6a871922-a1bb-4be1-b9b0-7638d7ecec75/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 -> 82679d367c32c359f0c9c81b27b57deea5682b2b [2019-11-15 23:47:10,018 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:47:10,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:47:10,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:47:10,040 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:47:10,040 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:47:10,041 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2019-11-15 23:47:10,103 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/data/264fd0faf/61a2517cfd8947aaa44691be94f4fb05/FLAGdf87e66e3 [2019-11-15 23:47:10,557 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:47:10,558 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2019-11-15 23:47:10,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/data/264fd0faf/61a2517cfd8947aaa44691be94f4fb05/FLAGdf87e66e3 [2019-11-15 23:47:10,857 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/data/264fd0faf/61a2517cfd8947aaa44691be94f4fb05 [2019-11-15 23:47:10,860 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:47:10,861 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 23:47:10,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:47:10,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:47:10,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:47:10,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:47:10" (1/1) ... [2019-11-15 23:47:10,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd4bdb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:47:10, skipping insertion in model container [2019-11-15 23:47:10,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:47:10" (1/1) ... [2019-11-15 23:47:10,881 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:47:10,928 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:47:11,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:47:11,334 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:47:11,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:47:11,430 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:47:11,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:47:11 WrapperNode [2019-11-15 23:47:11,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:47:11,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:47:11,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:47:11,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:47:11,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:47:11" (1/1) ... [2019-11-15 23:47:11,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:47:11" (1/1) ... [2019-11-15 23:47:11,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:47:11" (1/1) ... [2019-11-15 23:47:11,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:47:11" (1/1) ... [2019-11-15 23:47:11,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:47:11" (1/1) ... [2019-11-15 23:47:11,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:47:11" (1/1) ... [2019-11-15 23:47:11,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:47:11" (1/1) ... [2019-11-15 23:47:11,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:47:11,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:47:11,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:47:11,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:47:11,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:47:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/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 23:47:11,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 23:47:11,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:47:11,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-15 23:47:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-15 23:47:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-15 23:47:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-15 23:47:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-15 23:47:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure SelectionSort [2019-11-15 23:47:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 23:47:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 23:47:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 23:47:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 23:47:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 23:47:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 23:47:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 23:47:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 23:47:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 23:47:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 23:47:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 23:47:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 23:47:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 23:47:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 23:47:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 23:47:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 23:47:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 23:47:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-15 23:47:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-15 23:47:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-15 23:47:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-15 23:47:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-15 23:47:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 23:47:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 23:47:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 23:47:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 23:47:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 23:47:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 23:47:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 23:47:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 23:47:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 23:47:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 23:47:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 23:47:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 23:47:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 23:47:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 23:47:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 23:47:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 23:47:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 23:47:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 23:47:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 23:47:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 23:47:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 23:47:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 23:47:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 23:47:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 23:47:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 23:47:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 23:47:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 23:47:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 23:47:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 23:47:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 23:47:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 23:47:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 23:47:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 23:47:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 23:47:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 23:47:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 23:47:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 23:47:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 23:47:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 23:47:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 23:47:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 23:47:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 23:47:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 23:47:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 23:47:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 23:47:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 23:47:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 23:47:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 23:47:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 23:47:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 23:47:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 23:47:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 23:47:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 23:47:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 23:47:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 23:47:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 23:47:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 23:47:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 23:47:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 23:47:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 23:47:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 23:47:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 23:47:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 23:47:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 23:47:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 23:47:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 23:47:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 23:47:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 23:47:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 23:47:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 23:47:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 23:47:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 23:47:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 23:47:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 23:47:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 23:47:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 23:47:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 23:47:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 23:47:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 23:47:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 23:47:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 23:47:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 23:47:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 23:47:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 23:47:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 23:47:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 23:47:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-15 23:47:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure SelectionSort [2019-11-15 23:47:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:47:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:47:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 23:47:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:47:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:47:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 23:47:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:47:12,236 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:47:12,236 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-15 23:47:12,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:47:12 BoogieIcfgContainer [2019-11-15 23:47:12,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:47:12,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:47:12,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:47:12,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:47:12,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:47:10" (1/3) ... [2019-11-15 23:47:12,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5040df55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:47:12, skipping insertion in model container [2019-11-15 23:47:12,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:47:11" (2/3) ... [2019-11-15 23:47:12,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5040df55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:47:12, skipping insertion in model container [2019-11-15 23:47:12,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:47:12" (3/3) ... [2019-11-15 23:47:12,244 INFO L109 eAbstractionObserver]: Analyzing ICFG selectionsort-alloca-1.i [2019-11-15 23:47:12,253 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:47:12,260 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2019-11-15 23:47:12,271 INFO L249 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2019-11-15 23:47:12,286 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:47:12,286 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 23:47:12,286 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:47:12,286 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:47:12,286 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:47:12,286 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:47:12,287 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:47:12,287 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:47:12,301 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-11-15 23:47:12,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:47:12,310 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:12,310 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:12,312 INFO L410 AbstractCegarLoop]: === Iteration 1 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:12,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:12,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1261643446, now seen corresponding path program 1 times [2019-11-15 23:47:12,323 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:12,323 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77173893] [2019-11-15 23:47:12,323 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:12,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:12,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:12,517 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 23:47:12,518 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77173893] [2019-11-15 23:47:12,519 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:47:12,520 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:47:12,520 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248149589] [2019-11-15 23:47:12,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:47:12,524 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:12,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:47:12,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:47:12,535 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 4 states. [2019-11-15 23:47:12,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:12,712 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2019-11-15 23:47:12,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:47:12,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-15 23:47:12,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:12,723 INFO L225 Difference]: With dead ends: 48 [2019-11-15 23:47:12,724 INFO L226 Difference]: Without dead ends: 45 [2019-11-15 23:47:12,726 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 23:47:12,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-15 23:47:12,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-11-15 23:47:12,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-15 23:47:12,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2019-11-15 23:47:12,765 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 10 [2019-11-15 23:47:12,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:12,765 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2019-11-15 23:47:12,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:47:12,766 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2019-11-15 23:47:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:47:12,766 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:12,766 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:12,767 INFO L410 AbstractCegarLoop]: === Iteration 2 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:12,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:12,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1261643445, now seen corresponding path program 1 times [2019-11-15 23:47:12,767 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:12,767 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632619975] [2019-11-15 23:47:12,768 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:12,768 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:12,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:12,893 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 23:47:12,893 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632619975] [2019-11-15 23:47:12,893 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:47:12,893 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:47:12,893 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328725515] [2019-11-15 23:47:12,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:47:12,895 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:12,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:47:12,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:47:12,895 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 6 states. [2019-11-15 23:47:13,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:13,117 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2019-11-15 23:47:13,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:47:13,118 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-15 23:47:13,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:13,119 INFO L225 Difference]: With dead ends: 49 [2019-11-15 23:47:13,119 INFO L226 Difference]: Without dead ends: 49 [2019-11-15 23:47:13,120 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:47:13,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-15 23:47:13,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2019-11-15 23:47:13,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-11-15 23:47:13,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2019-11-15 23:47:13,126 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 10 [2019-11-15 23:47:13,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:13,126 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2019-11-15 23:47:13,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:47:13,127 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2019-11-15 23:47:13,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 23:47:13,127 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:13,127 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:13,128 INFO L410 AbstractCegarLoop]: === Iteration 3 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:13,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:13,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1690944142, now seen corresponding path program 1 times [2019-11-15 23:47:13,128 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:13,130 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570396281] [2019-11-15 23:47:13,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:13,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:13,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:13,268 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 23:47:13,268 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570396281] [2019-11-15 23:47:13,268 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162060628] [2019-11-15 23:47:13,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/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 23:47:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:13,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:47:13,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:47:13,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:47:13,459 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 23:47:13,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2019-11-15 23:47:13,460 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240872239] [2019-11-15 23:47:13,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:47:13,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:13,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:47:13,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:47:13,461 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 5 states. [2019-11-15 23:47:13,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:13,506 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2019-11-15 23:47:13,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:47:13,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-15 23:47:13,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:13,510 INFO L225 Difference]: With dead ends: 57 [2019-11-15 23:47:13,510 INFO L226 Difference]: Without dead ends: 57 [2019-11-15 23:47:13,511 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:47:13,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-11-15 23:47:13,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2019-11-15 23:47:13,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-15 23:47:13,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2019-11-15 23:47:13,535 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 14 [2019-11-15 23:47:13,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:13,535 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2019-11-15 23:47:13,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:47:13,536 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2019-11-15 23:47:13,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 23:47:13,536 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:13,536 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:13,748 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:13,748 INFO L410 AbstractCegarLoop]: === Iteration 4 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:13,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:13,749 INFO L82 PathProgramCache]: Analyzing trace with hash 881597516, now seen corresponding path program 1 times [2019-11-15 23:47:13,749 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:13,749 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977030586] [2019-11-15 23:47:13,749 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:13,750 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:13,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:13,879 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 23:47:13,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977030586] [2019-11-15 23:47:13,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870743741] [2019-11-15 23:47:13,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/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 23:47:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:14,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 23:47:14,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:47:14,048 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-11-15 23:47:14,048 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:47:14,055 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:47:14,055 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:47:14,056 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-11-15 23:47:14,107 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 23:47:14,108 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:47:14,108 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2019-11-15 23:47:14,108 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548291618] [2019-11-15 23:47:14,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:47:14,109 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:14,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:47:14,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:47:14,109 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 8 states. [2019-11-15 23:47:14,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:14,364 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2019-11-15 23:47:14,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:47:14,365 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-15 23:47:14,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:14,366 INFO L225 Difference]: With dead ends: 54 [2019-11-15 23:47:14,366 INFO L226 Difference]: Without dead ends: 54 [2019-11-15 23:47:14,367 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:47:14,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-15 23:47:14,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2019-11-15 23:47:14,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-15 23:47:14,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2019-11-15 23:47:14,372 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 14 [2019-11-15 23:47:14,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:14,375 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2019-11-15 23:47:14,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:47:14,376 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2019-11-15 23:47:14,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 23:47:14,377 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:14,378 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:14,587 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:14,587 INFO L410 AbstractCegarLoop]: === Iteration 5 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:14,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:14,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1904598989, now seen corresponding path program 1 times [2019-11-15 23:47:14,588 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:14,588 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423862436] [2019-11-15 23:47:14,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:14,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:14,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:14,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:47:14,643 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423862436] [2019-11-15 23:47:14,643 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:47:14,643 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:47:14,643 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643142265] [2019-11-15 23:47:14,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:47:14,644 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:14,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:47:14,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:47:14,644 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2019-11-15 23:47:14,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:14,802 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2019-11-15 23:47:14,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:47:14,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-15 23:47:14,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:14,803 INFO L225 Difference]: With dead ends: 45 [2019-11-15 23:47:14,804 INFO L226 Difference]: Without dead ends: 45 [2019-11-15 23:47:14,804 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 23:47:14,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-15 23:47:14,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-11-15 23:47:14,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-15 23:47:14,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2019-11-15 23:47:14,809 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 18 [2019-11-15 23:47:14,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:14,809 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2019-11-15 23:47:14,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:47:14,809 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2019-11-15 23:47:14,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 23:47:14,810 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:14,810 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:14,811 INFO L410 AbstractCegarLoop]: === Iteration 6 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:14,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:14,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1904598988, now seen corresponding path program 1 times [2019-11-15 23:47:14,811 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:14,811 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993970766] [2019-11-15 23:47:14,812 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:14,812 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:14,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:14,893 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 23:47:14,894 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993970766] [2019-11-15 23:47:14,894 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:47:14,894 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:47:14,894 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166318735] [2019-11-15 23:47:14,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:47:14,895 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:14,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:47:14,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:47:14,895 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 4 states. [2019-11-15 23:47:14,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:14,984 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-15 23:47:14,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:47:14,984 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-15 23:47:14,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:14,985 INFO L225 Difference]: With dead ends: 46 [2019-11-15 23:47:14,985 INFO L226 Difference]: Without dead ends: 46 [2019-11-15 23:47:14,985 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 23:47:14,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-15 23:47:14,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-11-15 23:47:14,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-15 23:47:14,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2019-11-15 23:47:14,992 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 18 [2019-11-15 23:47:14,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:14,992 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2019-11-15 23:47:14,993 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:47:14,993 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2019-11-15 23:47:14,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 23:47:14,993 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:14,994 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:14,994 INFO L410 AbstractCegarLoop]: === Iteration 7 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:14,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:14,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1904598942, now seen corresponding path program 1 times [2019-11-15 23:47:14,994 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:14,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14125637] [2019-11-15 23:47:14,995 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:14,995 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:14,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:15,062 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 23:47:15,063 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14125637] [2019-11-15 23:47:15,063 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:47:15,063 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:47:15,063 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892676437] [2019-11-15 23:47:15,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:47:15,064 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:15,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:47:15,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:47:15,065 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 6 states. [2019-11-15 23:47:15,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:15,282 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2019-11-15 23:47:15,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:47:15,282 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-15 23:47:15,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:15,283 INFO L225 Difference]: With dead ends: 54 [2019-11-15 23:47:15,283 INFO L226 Difference]: Without dead ends: 54 [2019-11-15 23:47:15,283 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:47:15,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-15 23:47:15,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2019-11-15 23:47:15,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-15 23:47:15,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2019-11-15 23:47:15,288 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 18 [2019-11-15 23:47:15,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:15,288 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2019-11-15 23:47:15,288 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:47:15,289 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2019-11-15 23:47:15,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 23:47:15,289 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:15,289 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:15,290 INFO L410 AbstractCegarLoop]: === Iteration 8 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:15,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:15,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1646433504, now seen corresponding path program 1 times [2019-11-15 23:47:15,290 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:15,290 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433266523] [2019-11-15 23:47:15,290 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:15,290 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:15,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:15,395 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 23:47:15,395 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433266523] [2019-11-15 23:47:15,395 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548335506] [2019-11-15 23:47:15,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/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 23:47:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:15,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 23:47:15,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:47:15,527 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 23:47:15,527 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:47:15,528 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2019-11-15 23:47:15,528 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37250188] [2019-11-15 23:47:15,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 23:47:15,528 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:15,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 23:47:15,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:47:15,529 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 10 states. [2019-11-15 23:47:15,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:15,822 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2019-11-15 23:47:15,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 23:47:15,822 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2019-11-15 23:47:15,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:15,825 INFO L225 Difference]: With dead ends: 66 [2019-11-15 23:47:15,825 INFO L226 Difference]: Without dead ends: 66 [2019-11-15 23:47:15,825 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2019-11-15 23:47:15,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-15 23:47:15,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2019-11-15 23:47:15,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-15 23:47:15,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2019-11-15 23:47:15,830 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 18 [2019-11-15 23:47:15,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:15,830 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2019-11-15 23:47:15,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 23:47:15,830 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2019-11-15 23:47:15,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-15 23:47:15,831 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:15,831 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:16,034 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:16,034 INFO L410 AbstractCegarLoop]: === Iteration 9 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:16,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:16,035 INFO L82 PathProgramCache]: Analyzing trace with hash -664248280, now seen corresponding path program 1 times [2019-11-15 23:47:16,035 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:16,035 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342572000] [2019-11-15 23:47:16,035 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:16,035 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:16,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:16,104 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 23:47:16,105 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342572000] [2019-11-15 23:47:16,105 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:47:16,105 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:47:16,105 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910624081] [2019-11-15 23:47:16,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:47:16,106 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:16,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:47:16,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:47:16,106 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 6 states. [2019-11-15 23:47:16,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:16,234 INFO L93 Difference]: Finished difference Result 72 states and 80 transitions. [2019-11-15 23:47:16,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:47:16,235 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-15 23:47:16,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:16,235 INFO L225 Difference]: With dead ends: 72 [2019-11-15 23:47:16,236 INFO L226 Difference]: Without dead ends: 55 [2019-11-15 23:47:16,236 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 23:47:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-15 23:47:16,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 39. [2019-11-15 23:47:16,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-15 23:47:16,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2019-11-15 23:47:16,240 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 20 [2019-11-15 23:47:16,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:16,240 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2019-11-15 23:47:16,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:47:16,240 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2019-11-15 23:47:16,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 23:47:16,241 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:16,241 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:16,241 INFO L410 AbstractCegarLoop]: === Iteration 10 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:16,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:16,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1552601699, now seen corresponding path program 2 times [2019-11-15 23:47:16,242 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:16,242 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324427593] [2019-11-15 23:47:16,242 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:16,242 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:16,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:16,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-15 23:47:16,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324427593] [2019-11-15 23:47:16,396 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:47:16,396 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:47:16,396 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287945550] [2019-11-15 23:47:16,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:47:16,397 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:16,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:47:16,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:47:16,397 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 8 states. [2019-11-15 23:47:16,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:16,647 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2019-11-15 23:47:16,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 23:47:16,648 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2019-11-15 23:47:16,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:16,649 INFO L225 Difference]: With dead ends: 59 [2019-11-15 23:47:16,649 INFO L226 Difference]: Without dead ends: 59 [2019-11-15 23:47:16,649 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-11-15 23:47:16,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-15 23:47:16,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 46. [2019-11-15 23:47:16,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-15 23:47:16,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2019-11-15 23:47:16,653 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 22 [2019-11-15 23:47:16,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:16,654 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2019-11-15 23:47:16,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:47:16,654 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2019-11-15 23:47:16,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-15 23:47:16,655 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:16,655 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:16,655 INFO L410 AbstractCegarLoop]: === Iteration 11 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:16,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:16,655 INFO L82 PathProgramCache]: Analyzing trace with hash 886012410, now seen corresponding path program 1 times [2019-11-15 23:47:16,655 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:16,656 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432778843] [2019-11-15 23:47:16,656 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:16,656 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:16,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:16,778 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-15 23:47:16,778 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432778843] [2019-11-15 23:47:16,779 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:47:16,779 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:47:16,779 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461089835] [2019-11-15 23:47:16,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:47:16,779 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:16,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:47:16,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:47:16,780 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 8 states. [2019-11-15 23:47:17,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:17,014 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2019-11-15 23:47:17,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 23:47:17,014 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2019-11-15 23:47:17,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:17,015 INFO L225 Difference]: With dead ends: 72 [2019-11-15 23:47:17,015 INFO L226 Difference]: Without dead ends: 72 [2019-11-15 23:47:17,015 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-11-15 23:47:17,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-11-15 23:47:17,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 57. [2019-11-15 23:47:17,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-11-15 23:47:17,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2019-11-15 23:47:17,020 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 23 [2019-11-15 23:47:17,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:17,020 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2019-11-15 23:47:17,020 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:47:17,020 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2019-11-15 23:47:17,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 23:47:17,021 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:17,021 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:17,021 INFO L410 AbstractCegarLoop]: === Iteration 12 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:17,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:17,022 INFO L82 PathProgramCache]: Analyzing trace with hash -332469455, now seen corresponding path program 1 times [2019-11-15 23:47:17,022 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:17,022 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62759643] [2019-11-15 23:47:17,022 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:17,022 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:17,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:47:17,206 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62759643] [2019-11-15 23:47:17,206 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679147205] [2019-11-15 23:47:17,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/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 23:47:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:17,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 23:47:17,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:47:17,430 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-15 23:47:17,430 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:47:17,430 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6] total 17 [2019-11-15 23:47:17,430 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649870025] [2019-11-15 23:47:17,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-15 23:47:17,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:17,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-15 23:47:17,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2019-11-15 23:47:17,432 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand 18 states. [2019-11-15 23:47:17,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:17,901 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2019-11-15 23:47:17,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:47:17,902 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 27 [2019-11-15 23:47:17,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:17,902 INFO L225 Difference]: With dead ends: 58 [2019-11-15 23:47:17,903 INFO L226 Difference]: Without dead ends: 58 [2019-11-15 23:47:17,903 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2019-11-15 23:47:17,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-15 23:47:17,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2019-11-15 23:47:17,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-15 23:47:17,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2019-11-15 23:47:17,907 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 27 [2019-11-15 23:47:17,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:17,908 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2019-11-15 23:47:17,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-15 23:47:17,908 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2019-11-15 23:47:17,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-15 23:47:17,912 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:17,912 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:18,115 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:18,117 INFO L410 AbstractCegarLoop]: === Iteration 13 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:18,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:18,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1716617090, now seen corresponding path program 1 times [2019-11-15 23:47:18,117 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:18,117 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289521522] [2019-11-15 23:47:18,118 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:18,118 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:18,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-15 23:47:18,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289521522] [2019-11-15 23:47:18,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620552845] [2019-11-15 23:47:18,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/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 23:47:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:18,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 23:47:18,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:47:18,539 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:47:18,539 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:47:18,539 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-11-15 23:47:18,539 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154957600] [2019-11-15 23:47:18,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-15 23:47:18,540 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:18,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-15 23:47:18,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2019-11-15 23:47:18,540 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand 18 states. [2019-11-15 23:47:19,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:19,393 INFO L93 Difference]: Finished difference Result 137 states and 151 transitions. [2019-11-15 23:47:19,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-15 23:47:19,393 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 28 [2019-11-15 23:47:19,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:19,394 INFO L225 Difference]: With dead ends: 137 [2019-11-15 23:47:19,394 INFO L226 Difference]: Without dead ends: 137 [2019-11-15 23:47:19,395 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=214, Invalid=908, Unknown=0, NotChecked=0, Total=1122 [2019-11-15 23:47:19,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-15 23:47:19,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 90. [2019-11-15 23:47:19,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-11-15 23:47:19,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2019-11-15 23:47:19,403 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 28 [2019-11-15 23:47:19,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:19,403 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2019-11-15 23:47:19,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-15 23:47:19,403 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2019-11-15 23:47:19,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-15 23:47:19,404 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:19,405 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:19,607 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:19,607 INFO L410 AbstractCegarLoop]: === Iteration 14 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:19,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:19,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1675565934, now seen corresponding path program 1 times [2019-11-15 23:47:19,608 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:19,608 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546787200] [2019-11-15 23:47:19,608 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:19,608 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:19,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:19,787 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:47:19,788 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546787200] [2019-11-15 23:47:19,788 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144025312] [2019-11-15 23:47:19,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/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 23:47:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:19,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 23:47:19,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:47:19,989 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-15 23:47:19,989 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:47:19,990 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 18 [2019-11-15 23:47:19,990 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775552694] [2019-11-15 23:47:19,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-15 23:47:19,990 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:19,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-15 23:47:19,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2019-11-15 23:47:19,991 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand 19 states. [2019-11-15 23:47:20,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:20,515 INFO L93 Difference]: Finished difference Result 112 states and 126 transitions. [2019-11-15 23:47:20,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-15 23:47:20,516 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 29 [2019-11-15 23:47:20,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:20,517 INFO L225 Difference]: With dead ends: 112 [2019-11-15 23:47:20,517 INFO L226 Difference]: Without dead ends: 112 [2019-11-15 23:47:20,517 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2019-11-15 23:47:20,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2019-11-15 23:47:20,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 78. [2019-11-15 23:47:20,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-15 23:47:20,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2019-11-15 23:47:20,522 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 29 [2019-11-15 23:47:20,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:20,522 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2019-11-15 23:47:20,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-15 23:47:20,522 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2019-11-15 23:47:20,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-15 23:47:20,523 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:20,523 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2019-11-15 23:47:20,732 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:20,732 INFO L410 AbstractCegarLoop]: === Iteration 15 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:20,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:20,732 INFO L82 PathProgramCache]: Analyzing trace with hash -840553061, now seen corresponding path program 1 times [2019-11-15 23:47:20,733 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:20,733 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496780167] [2019-11-15 23:47:20,733 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:20,733 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:20,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-15 23:47:20,809 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496780167] [2019-11-15 23:47:20,809 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597562726] [2019-11-15 23:47:20,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:20,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 23:47:20,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:47:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 23:47:20,990 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:47:20,991 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2019-11-15 23:47:20,991 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426442312] [2019-11-15 23:47:20,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-15 23:47:20,991 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:20,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-15 23:47:20,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2019-11-15 23:47:20,992 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand 14 states. [2019-11-15 23:47:21,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:21,512 INFO L93 Difference]: Finished difference Result 123 states and 140 transitions. [2019-11-15 23:47:21,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-15 23:47:21,512 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 36 [2019-11-15 23:47:21,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:21,513 INFO L225 Difference]: With dead ends: 123 [2019-11-15 23:47:21,514 INFO L226 Difference]: Without dead ends: 98 [2019-11-15 23:47:21,514 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2019-11-15 23:47:21,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-15 23:47:21,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 77. [2019-11-15 23:47:21,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-15 23:47:21,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2019-11-15 23:47:21,519 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 36 [2019-11-15 23:47:21,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:21,519 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2019-11-15 23:47:21,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-15 23:47:21,519 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2019-11-15 23:47:21,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-15 23:47:21,521 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:21,521 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:21,729 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:21,729 INFO L410 AbstractCegarLoop]: === Iteration 16 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:21,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:21,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1631043378, now seen corresponding path program 2 times [2019-11-15 23:47:21,729 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:21,730 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068668067] [2019-11-15 23:47:21,730 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:21,730 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:21,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:21,920 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-15 23:47:21,920 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068668067] [2019-11-15 23:47:21,920 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993285364] [2019-11-15 23:47:21,920 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:22,032 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 23:47:22,033 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 23:47:22,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-15 23:47:22,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:47:22,214 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-15 23:47:22,214 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:47:22,214 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2019-11-15 23:47:22,214 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193233630] [2019-11-15 23:47:22,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-15 23:47:22,215 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:22,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-15 23:47:22,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2019-11-15 23:47:22,216 INFO L87 Difference]: Start difference. First operand 77 states and 91 transitions. Second operand 20 states. [2019-11-15 23:47:23,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:23,218 INFO L93 Difference]: Finished difference Result 91 states and 102 transitions. [2019-11-15 23:47:23,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-15 23:47:23,219 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 45 [2019-11-15 23:47:23,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:23,220 INFO L225 Difference]: With dead ends: 91 [2019-11-15 23:47:23,220 INFO L226 Difference]: Without dead ends: 91 [2019-11-15 23:47:23,220 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=286, Invalid=904, Unknown=0, NotChecked=0, Total=1190 [2019-11-15 23:47:23,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-15 23:47:23,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 77. [2019-11-15 23:47:23,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-15 23:47:23,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 90 transitions. [2019-11-15 23:47:23,224 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 90 transitions. Word has length 45 [2019-11-15 23:47:23,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:23,224 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 90 transitions. [2019-11-15 23:47:23,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-15 23:47:23,224 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 90 transitions. [2019-11-15 23:47:23,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-15 23:47:23,225 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:23,225 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:23,428 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:23,429 INFO L410 AbstractCegarLoop]: === Iteration 17 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:23,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:23,429 INFO L82 PathProgramCache]: Analyzing trace with hash -977262837, now seen corresponding path program 1 times [2019-11-15 23:47:23,429 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:23,429 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099401073] [2019-11-15 23:47:23,429 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:23,429 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:23,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:23,552 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-15 23:47:23,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099401073] [2019-11-15 23:47:23,553 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465418950] [2019-11-15 23:47:23,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:23,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-15 23:47:23,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:47:23,845 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-15 23:47:23,846 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:47:23,846 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2019-11-15 23:47:23,846 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711559109] [2019-11-15 23:47:23,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-15 23:47:23,847 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:23,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-15 23:47:23,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-11-15 23:47:23,847 INFO L87 Difference]: Start difference. First operand 77 states and 90 transitions. Second operand 17 states. [2019-11-15 23:47:24,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:24,538 INFO L93 Difference]: Finished difference Result 89 states and 98 transitions. [2019-11-15 23:47:24,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-15 23:47:24,538 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 46 [2019-11-15 23:47:24,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:24,539 INFO L225 Difference]: With dead ends: 89 [2019-11-15 23:47:24,539 INFO L226 Difference]: Without dead ends: 83 [2019-11-15 23:47:24,539 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=202, Invalid=554, Unknown=0, NotChecked=0, Total=756 [2019-11-15 23:47:24,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-11-15 23:47:24,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 55. [2019-11-15 23:47:24,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-15 23:47:24,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2019-11-15 23:47:24,541 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 46 [2019-11-15 23:47:24,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:24,542 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2019-11-15 23:47:24,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-15 23:47:24,542 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2019-11-15 23:47:24,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-11-15 23:47:24,542 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:24,543 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:24,746 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:24,746 INFO L410 AbstractCegarLoop]: === Iteration 18 === [SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 23:47:24,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:24,747 INFO L82 PathProgramCache]: Analyzing trace with hash 200380590, now seen corresponding path program 3 times [2019-11-15 23:47:24,747 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:47:24,747 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219898123] [2019-11-15 23:47:24,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:24,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:47:24,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:47:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:24,854 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-15 23:47:24,854 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219898123] [2019-11-15 23:47:24,857 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827431013] [2019-11-15 23:47:24,857 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:24,982 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-11-15 23:47:24,982 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 23:47:24,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-15 23:47:24,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:47:25,280 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-15 23:47:25,280 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:47:25,281 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2019-11-15 23:47:25,281 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303940481] [2019-11-15 23:47:25,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-15 23:47:25,282 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:47:25,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-15 23:47:25,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2019-11-15 23:47:25,282 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand 20 states. [2019-11-15 23:47:26,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:26,477 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2019-11-15 23:47:26,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-15 23:47:26,478 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 50 [2019-11-15 23:47:26,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:26,478 INFO L225 Difference]: With dead ends: 102 [2019-11-15 23:47:26,478 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:47:26,479 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=336, Invalid=1386, Unknown=0, NotChecked=0, Total=1722 [2019-11-15 23:47:26,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:47:26,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:47:26,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:47:26,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:47:26,479 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2019-11-15 23:47:26,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:26,479 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:47:26,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-15 23:47:26,479 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:47:26,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:47:26,680 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:47:26,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:47:26 BoogieIcfgContainer [2019-11-15 23:47:26,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:47:26,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:47:26,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:47:26,685 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:47:26,686 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:47:12" (3/4) ... [2019-11-15 23:47:26,689 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:47:26,695 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-15 23:47:26,695 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-11-15 23:47:26,696 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-11-15 23:47:26,696 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-11-15 23:47:26,696 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-11-15 23:47:26,696 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure SelectionSort [2019-11-15 23:47:26,696 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-15 23:47:26,696 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-11-15 23:47:26,701 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-15 23:47:26,701 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-15 23:47:26,702 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 23:47:26,746 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6a871922-a1bb-4be1-b9b0-7638d7ecec75/bin/uautomizer/witness.graphml [2019-11-15 23:47:26,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:47:26,747 INFO L168 Benchmark]: Toolchain (without parser) took 15886.75 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 362.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -123.2 MB). Peak memory consumption was 239.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:47:26,748 INFO L168 Benchmark]: CDTParser took 0.22 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 23:47:26,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -159.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:47:26,749 INFO L168 Benchmark]: Boogie Preprocessor took 94.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:47:26,749 INFO L168 Benchmark]: RCFGBuilder took 711.66 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: 50.0 MB). Peak memory consumption was 50.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:47:26,750 INFO L168 Benchmark]: TraceAbstraction took 14446.16 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 234.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.6 MB). Peak memory consumption was 217.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:47:26,750 INFO L168 Benchmark]: Witness Printer took 61.53 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:47:26,752 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 563.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -159.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 94.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 711.66 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: 50.0 MB). Peak memory consumption was 50.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14446.16 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 234.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.6 MB). Peak memory consumption was 217.2 MB. Max. memory is 11.5 GB. * Witness Printer took 61.53 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 538]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 538]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 529]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 64 locations, 15 error locations. Result: SAFE, OverallTime: 14.3s, OverallIterations: 18, TraceHistogramMax: 4, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 425 SDtfs, 2093 SDslu, 869 SDs, 0 SdLazy, 3844 SolverSat, 296 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 283 SyntacticMatches, 3 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 214 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 753 NumberOfCodeBlocks, 735 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 725 ConstructedInterpolants, 0 QuantifiedInterpolants, 167789 SizeOfPredicates, 41 NumberOfNonLiveVariables, 1171 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 28 InterpolantComputations, 9 PerfectInterpolantSequences, 179/292 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...