./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/working_dir_0230abcb-2889-4ef3-ae93-943902612912/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:23,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:23,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:23,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:23,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:23,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:23,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:23,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:23,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:23,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:23,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:23,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:23,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:23,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:23,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:23,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:23,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:23,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:23,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:23,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:23,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:23,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:23,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:23,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:23,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:23,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:23,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:23,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:23,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:23,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:23,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:23,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:23,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:23,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:23,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:23,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:23,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:23,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:23,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:23,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:23,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:23,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 08:58:23,380 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:23,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:23,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:23,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:23,381 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:23,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:23,382 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:23,382 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:23,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:23,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:23,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:23,383 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:58:23,383 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:58:23,383 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:58:23,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:23,383 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:23,384 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:23,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:23,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:23,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:23,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:23,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:23,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:23,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:23,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:23,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:23,385 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/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:23,411 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:23,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:23,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:23,427 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:23,428 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:23,428 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2019-10-22 08:58:23,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/bin/uautomizer/data/f1a9369bc/f5a141e8184e40979c3e6daf6f43f0dd/FLAGe09893314 [2019-10-22 08:58:23,908 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:23,909 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2019-10-22 08:58:23,920 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/bin/uautomizer/data/f1a9369bc/f5a141e8184e40979c3e6daf6f43f0dd/FLAGe09893314 [2019-10-22 08:58:23,932 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/bin/uautomizer/data/f1a9369bc/f5a141e8184e40979c3e6daf6f43f0dd [2019-10-22 08:58:23,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:23,936 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:58:23,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:23,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:23,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:23,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:23" (1/1) ... [2019-10-22 08:58:23,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ffc131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23, skipping insertion in model container [2019-10-22 08:58:23,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:23" (1/1) ... [2019-10-22 08:58:23,951 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:23,986 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:24,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:24,307 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:24,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:24,395 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:24,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:24 WrapperNode [2019-10-22 08:58:24,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:24,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:24,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:24,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:24,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:24" (1/1) ... [2019-10-22 08:58:24,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:24" (1/1) ... [2019-10-22 08:58:24,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:24" (1/1) ... [2019-10-22 08:58:24,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:24" (1/1) ... [2019-10-22 08:58:24,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:24" (1/1) ... [2019-10-22 08:58:24,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:24" (1/1) ... [2019-10-22 08:58:24,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:24" (1/1) ... [2019-10-22 08:58:24,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:24,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:24,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:24,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:24,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:58:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:58:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:58:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 08:58:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 08:58:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 08:58:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure SelectionSort [2019-10-22 08:58:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:58:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:58:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:58:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:58:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:58:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:58:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:58:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:58:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:58:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:58:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:58:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:58:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:58:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:58:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:58:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:58:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:58:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:58:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:58:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 08:58:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 08:58:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 08:58:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:58:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:58:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:58:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:58:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:58:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:58:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:58:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:58:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:58:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:58:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:58:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:58:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:58:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:58:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:58:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:58:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:58:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:58:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:58:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:58:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:58:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:58:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:58:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:58:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:58:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:58:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:58:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:58:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:58:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:58:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:58:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:58:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:58:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:58:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:58:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:58:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:58:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:58:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:58:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:58:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:58:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:58:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:58:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:58:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:58:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:58:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:58:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:58:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:58:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:58:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:58:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:58:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:58:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:58:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:58:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:58:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:58:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:58:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:58:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:58:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:58:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:58:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:58:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:58:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:58:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:58:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:58:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:58:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:58:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:58:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:58:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:58:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:58:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:58:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:58:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:58:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:58:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:58:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:58:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:58:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:58:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:58:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:58:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:58:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:58:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:58:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:58:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure SelectionSort [2019-10-22 08:58:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:58:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:58:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:58:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:58:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:25,087 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:25,088 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-22 08:58:25,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:25 BoogieIcfgContainer [2019-10-22 08:58:25,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:25,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:25,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:25,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:25,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:23" (1/3) ... [2019-10-22 08:58:25,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c63c8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:25, skipping insertion in model container [2019-10-22 08:58:25,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:24" (2/3) ... [2019-10-22 08:58:25,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c63c8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:25, skipping insertion in model container [2019-10-22 08:58:25,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:25" (3/3) ... [2019-10-22 08:58:25,098 INFO L109 eAbstractionObserver]: Analyzing ICFG selectionsort-alloca-1.i [2019-10-22 08:58:25,105 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:25,110 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2019-10-22 08:58:25,117 INFO L249 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2019-10-22 08:58:25,132 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:25,132 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:58:25,133 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:25,133 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:25,133 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:25,133 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:25,133 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:25,133 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:25,150 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-10-22 08:58:25,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:58:25,159 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:25,160 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:25,166 INFO L410 AbstractCegarLoop]: === Iteration 1 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:25,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:25,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1261643446, now seen corresponding path program 1 times [2019-10-22 08:58:25,176 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:25,177 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137928914] [2019-10-22 08:58:25,177 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:25,177 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:25,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:25,336 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137928914] [2019-10-22 08:58:25,338 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:25,338 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:25,338 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113968492] [2019-10-22 08:58:25,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:25,342 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:25,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:25,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:25,353 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 4 states. [2019-10-22 08:58:25,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:25,487 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2019-10-22 08:58:25,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:25,489 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 08:58:25,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:25,499 INFO L225 Difference]: With dead ends: 48 [2019-10-22 08:58:25,499 INFO L226 Difference]: Without dead ends: 45 [2019-10-22 08:58:25,500 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 [2019-10-22 08:58:25,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-22 08:58:25,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-10-22 08:58:25,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 08:58:25,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2019-10-22 08:58:25,541 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 10 [2019-10-22 08:58:25,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:25,541 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2019-10-22 08:58:25,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:25,541 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2019-10-22 08:58:25,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:58:25,542 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:25,542 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:25,542 INFO L410 AbstractCegarLoop]: === Iteration 2 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:25,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:25,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1261643445, now seen corresponding path program 1 times [2019-10-22 08:58:25,543 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:25,543 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427113895] [2019-10-22 08:58:25,543 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:25,543 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:25,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:25,650 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427113895] [2019-10-22 08:58:25,651 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:25,651 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:25,651 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89845282] [2019-10-22 08:58:25,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:25,652 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:25,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:25,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:25,653 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 6 states. [2019-10-22 08:58:25,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:25,791 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2019-10-22 08:58:25,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:58:25,791 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-10-22 08:58:25,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:25,792 INFO L225 Difference]: With dead ends: 49 [2019-10-22 08:58:25,792 INFO L226 Difference]: Without dead ends: 49 [2019-10-22 08:58:25,793 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 [2019-10-22 08:58:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-22 08:58:25,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2019-10-22 08:58:25,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-22 08:58:25,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2019-10-22 08:58:25,798 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 10 [2019-10-22 08:58:25,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:25,798 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2019-10-22 08:58:25,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:25,798 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2019-10-22 08:58:25,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 08:58:25,799 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:25,799 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:25,799 INFO L410 AbstractCegarLoop]: === Iteration 3 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:25,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:25,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1690944142, now seen corresponding path program 1 times [2019-10-22 08:58:25,800 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:25,800 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678264488] [2019-10-22 08:58:25,800 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:25,800 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:25,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:25,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678264488] [2019-10-22 08:58:25,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155209007] [2019-10-22 08:58:25,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:26,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:26,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:26,083 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:58:26,083 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2019-10-22 08:58:26,083 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203743484] [2019-10-22 08:58:26,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:26,083 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:26,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:26,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:58:26,084 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 5 states. [2019-10-22 08:58:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:26,125 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2019-10-22 08:58:26,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:26,127 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-22 08:58:26,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:26,129 INFO L225 Difference]: With dead ends: 57 [2019-10-22 08:58:26,129 INFO L226 Difference]: Without dead ends: 57 [2019-10-22 08:58:26,130 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:58:26,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-22 08:58:26,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2019-10-22 08:58:26,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-22 08:58:26,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2019-10-22 08:58:26,138 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 14 [2019-10-22 08:58:26,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:26,138 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2019-10-22 08:58:26,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:26,138 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2019-10-22 08:58:26,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 08:58:26,139 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:26,139 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:26,340 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:26,340 INFO L410 AbstractCegarLoop]: === Iteration 4 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:26,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:26,340 INFO L82 PathProgramCache]: Analyzing trace with hash 881597516, now seen corresponding path program 1 times [2019-10-22 08:58:26,341 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:26,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530186496] [2019-10-22 08:58:26,341 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:26,341 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:26,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:26,473 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530186496] [2019-10-22 08:58:26,473 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466039715] [2019-10-22 08:58:26,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-22 08:58:26,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:26,607 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 [2019-10-22 08:58:26,607 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:26,619 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:26,619 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:26,620 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-10-22 08:58:26,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:26,673 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:26,673 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2019-10-22 08:58:26,674 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670391489] [2019-10-22 08:58:26,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:26,674 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:26,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:26,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:26,675 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 8 states. [2019-10-22 08:58:26,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:26,896 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2019-10-22 08:58:26,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:58:26,897 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-10-22 08:58:26,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:26,898 INFO L225 Difference]: With dead ends: 54 [2019-10-22 08:58:26,898 INFO L226 Difference]: Without dead ends: 54 [2019-10-22 08:58:26,898 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 [2019-10-22 08:58:26,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-22 08:58:26,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2019-10-22 08:58:26,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-22 08:58:26,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2019-10-22 08:58:26,902 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 14 [2019-10-22 08:58:26,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:26,903 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2019-10-22 08:58:26,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:26,903 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2019-10-22 08:58:26,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 08:58:26,904 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:26,904 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:27,104 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:27,105 INFO L410 AbstractCegarLoop]: === Iteration 5 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:27,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:27,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1904598989, now seen corresponding path program 1 times [2019-10-22 08:58:27,105 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:27,105 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190132745] [2019-10-22 08:58:27,105 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,105 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:27,154 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190132745] [2019-10-22 08:58:27,155 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:27,155 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:27,155 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523963596] [2019-10-22 08:58:27,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:27,155 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:27,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:27,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:27,156 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2019-10-22 08:58:27,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:27,261 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2019-10-22 08:58:27,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:58:27,261 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-10-22 08:58:27,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:27,262 INFO L225 Difference]: With dead ends: 45 [2019-10-22 08:58:27,262 INFO L226 Difference]: Without dead ends: 45 [2019-10-22 08:58:27,263 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 [2019-10-22 08:58:27,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-22 08:58:27,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-10-22 08:58:27,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 08:58:27,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2019-10-22 08:58:27,267 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 18 [2019-10-22 08:58:27,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:27,267 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2019-10-22 08:58:27,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:27,268 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2019-10-22 08:58:27,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 08:58:27,268 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:27,268 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:27,269 INFO L410 AbstractCegarLoop]: === Iteration 6 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:27,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:27,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1904598988, now seen corresponding path program 1 times [2019-10-22 08:58:27,270 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:27,270 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740439986] [2019-10-22 08:58:27,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:58:27,310 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740439986] [2019-10-22 08:58:27,310 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:27,311 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:27,311 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789180761] [2019-10-22 08:58:27,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:27,311 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:27,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:27,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:27,312 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 4 states. [2019-10-22 08:58:27,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:27,390 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-10-22 08:58:27,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:27,391 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-10-22 08:58:27,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:27,391 INFO L225 Difference]: With dead ends: 46 [2019-10-22 08:58:27,391 INFO L226 Difference]: Without dead ends: 46 [2019-10-22 08:58:27,392 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 [2019-10-22 08:58:27,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-10-22 08:58:27,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-10-22 08:58:27,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-22 08:58:27,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2019-10-22 08:58:27,396 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 18 [2019-10-22 08:58:27,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:27,396 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2019-10-22 08:58:27,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:27,396 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2019-10-22 08:58:27,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 08:58:27,397 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:27,397 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:27,397 INFO L410 AbstractCegarLoop]: === Iteration 7 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:27,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:27,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1904598942, now seen corresponding path program 1 times [2019-10-22 08:58:27,398 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:27,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720938996] [2019-10-22 08:58:27,398 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,398 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:58:27,453 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720938996] [2019-10-22 08:58:27,453 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:27,453 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:58:27,453 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573191422] [2019-10-22 08:58:27,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:27,454 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:27,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:27,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:27,454 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 6 states. [2019-10-22 08:58:27,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:27,620 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2019-10-22 08:58:27,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:58:27,621 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-10-22 08:58:27,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:27,621 INFO L225 Difference]: With dead ends: 54 [2019-10-22 08:58:27,622 INFO L226 Difference]: Without dead ends: 54 [2019-10-22 08:58:27,622 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 [2019-10-22 08:58:27,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-22 08:58:27,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2019-10-22 08:58:27,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-22 08:58:27,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2019-10-22 08:58:27,626 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 18 [2019-10-22 08:58:27,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:27,626 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2019-10-22 08:58:27,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:27,626 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2019-10-22 08:58:27,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 08:58:27,627 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:27,627 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:27,627 INFO L410 AbstractCegarLoop]: === Iteration 8 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:27,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:27,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1646433504, now seen corresponding path program 1 times [2019-10-22 08:58:27,628 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:27,628 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280945514] [2019-10-22 08:58:27,628 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,628 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:27,695 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280945514] [2019-10-22 08:58:27,696 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516594988] [2019-10-22 08:58:27,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 08:58:27,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:27,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:27,787 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:27,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2019-10-22 08:58:27,788 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846765541] [2019-10-22 08:58:27,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 08:58:27,788 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:27,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 08:58:27,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:58:27,789 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 10 states. [2019-10-22 08:58:28,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:28,014 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2019-10-22 08:58:28,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:58:28,014 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2019-10-22 08:58:28,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:28,016 INFO L225 Difference]: With dead ends: 66 [2019-10-22 08:58:28,016 INFO L226 Difference]: Without dead ends: 66 [2019-10-22 08:58:28,017 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2019-10-22 08:58:28,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-10-22 08:58:28,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2019-10-22 08:58:28,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-22 08:58:28,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2019-10-22 08:58:28,025 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 18 [2019-10-22 08:58:28,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:28,025 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2019-10-22 08:58:28,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 08:58:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2019-10-22 08:58:28,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 08:58:28,026 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:28,026 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:28,229 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:28,230 INFO L410 AbstractCegarLoop]: === Iteration 9 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:28,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:28,230 INFO L82 PathProgramCache]: Analyzing trace with hash -664248280, now seen corresponding path program 1 times [2019-10-22 08:58:28,230 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:28,230 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140203669] [2019-10-22 08:58:28,230 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,230 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:58:28,290 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140203669] [2019-10-22 08:58:28,290 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:28,290 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:28,290 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646509094] [2019-10-22 08:58:28,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:28,291 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:28,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:28,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:28,291 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 6 states. [2019-10-22 08:58:28,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:28,413 INFO L93 Difference]: Finished difference Result 72 states and 80 transitions. [2019-10-22 08:58:28,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:58:28,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-10-22 08:58:28,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:28,414 INFO L225 Difference]: With dead ends: 72 [2019-10-22 08:58:28,415 INFO L226 Difference]: Without dead ends: 55 [2019-10-22 08:58:28,415 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 [2019-10-22 08:58:28,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-10-22 08:58:28,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 39. [2019-10-22 08:58:28,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-22 08:58:28,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2019-10-22 08:58:28,418 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 20 [2019-10-22 08:58:28,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:28,418 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2019-10-22 08:58:28,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:28,418 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2019-10-22 08:58:28,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:58:28,418 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:28,418 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:28,419 INFO L410 AbstractCegarLoop]: === Iteration 10 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:28,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:28,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1552601699, now seen corresponding path program 2 times [2019-10-22 08:58:28,419 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:28,419 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236552392] [2019-10-22 08:58:28,419 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,419 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,556 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 08:58:28,556 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236552392] [2019-10-22 08:58:28,556 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:28,556 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:58:28,556 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553995448] [2019-10-22 08:58:28,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:28,558 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:28,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:28,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:28,558 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 8 states. [2019-10-22 08:58:28,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:28,796 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2019-10-22 08:58:28,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:58:28,796 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2019-10-22 08:58:28,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:28,797 INFO L225 Difference]: With dead ends: 59 [2019-10-22 08:58:28,797 INFO L226 Difference]: Without dead ends: 59 [2019-10-22 08:58:28,797 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 [2019-10-22 08:58:28,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-10-22 08:58:28,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 46. [2019-10-22 08:58:28,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-22 08:58:28,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2019-10-22 08:58:28,800 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 22 [2019-10-22 08:58:28,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:28,801 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2019-10-22 08:58:28,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:28,802 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2019-10-22 08:58:28,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 08:58:28,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:28,803 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:28,803 INFO L410 AbstractCegarLoop]: === Iteration 11 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:28,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:28,804 INFO L82 PathProgramCache]: Analyzing trace with hash 886012410, now seen corresponding path program 1 times [2019-10-22 08:58:28,804 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:28,804 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548866257] [2019-10-22 08:58:28,804 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,804 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 08:58:28,898 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548866257] [2019-10-22 08:58:28,898 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:28,898 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:58:28,898 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264010195] [2019-10-22 08:58:28,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:28,899 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:28,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:28,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:28,899 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 8 states. [2019-10-22 08:58:29,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:29,108 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2019-10-22 08:58:29,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:58:29,108 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2019-10-22 08:58:29,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:29,109 INFO L225 Difference]: With dead ends: 72 [2019-10-22 08:58:29,109 INFO L226 Difference]: Without dead ends: 72 [2019-10-22 08:58:29,109 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 [2019-10-22 08:58:29,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-22 08:58:29,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 57. [2019-10-22 08:58:29,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-22 08:58:29,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2019-10-22 08:58:29,113 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 23 [2019-10-22 08:58:29,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:29,113 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2019-10-22 08:58:29,113 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:29,114 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2019-10-22 08:58:29,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 08:58:29,114 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:29,114 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] [2019-10-22 08:58:29,114 INFO L410 AbstractCegarLoop]: === Iteration 12 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:29,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:29,115 INFO L82 PathProgramCache]: Analyzing trace with hash -332469455, now seen corresponding path program 1 times [2019-10-22 08:58:29,115 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:29,115 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364714778] [2019-10-22 08:58:29,115 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:29,115 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:29,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:29,250 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:29,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364714778] [2019-10-22 08:58:29,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291139902] [2019-10-22 08:58:29,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:29,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:58:29,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 08:58:29,449 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:29,450 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6] total 17 [2019-10-22 08:58:29,450 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479228827] [2019-10-22 08:58:29,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-22 08:58:29,450 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:29,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-22 08:58:29,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2019-10-22 08:58:29,451 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand 18 states. [2019-10-22 08:58:29,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:29,773 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2019-10-22 08:58:29,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 08:58:29,773 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 27 [2019-10-22 08:58:29,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:29,774 INFO L225 Difference]: With dead ends: 58 [2019-10-22 08:58:29,774 INFO L226 Difference]: Without dead ends: 58 [2019-10-22 08:58:29,775 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2019-10-22 08:58:29,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-10-22 08:58:29,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2019-10-22 08:58:29,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-22 08:58:29,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2019-10-22 08:58:29,780 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 27 [2019-10-22 08:58:29,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:29,781 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2019-10-22 08:58:29,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-22 08:58:29,781 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2019-10-22 08:58:29,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 08:58:29,781 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:29,782 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] [2019-10-22 08:58:29,982 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:29,982 INFO L410 AbstractCegarLoop]: === Iteration 13 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:29,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:29,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1716617090, now seen corresponding path program 1 times [2019-10-22 08:58:29,983 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:29,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692026955] [2019-10-22 08:58:29,983 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:29,983 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:29,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:30,112 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 08:58:30,113 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692026955] [2019-10-22 08:58:30,114 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911584111] [2019-10-22 08:58:30,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:30,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 08:58:30,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:30,327 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:30,328 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:30,328 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-10-22 08:58:30,328 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290712037] [2019-10-22 08:58:30,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-22 08:58:30,328 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:30,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-22 08:58:30,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2019-10-22 08:58:30,329 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand 18 states. [2019-10-22 08:58:31,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:31,069 INFO L93 Difference]: Finished difference Result 137 states and 151 transitions. [2019-10-22 08:58:31,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-22 08:58:31,070 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 28 [2019-10-22 08:58:31,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:31,070 INFO L225 Difference]: With dead ends: 137 [2019-10-22 08:58:31,070 INFO L226 Difference]: Without dead ends: 137 [2019-10-22 08:58:31,071 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=214, Invalid=908, Unknown=0, NotChecked=0, Total=1122 [2019-10-22 08:58:31,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-10-22 08:58:31,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 90. [2019-10-22 08:58:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-10-22 08:58:31,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2019-10-22 08:58:31,075 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 28 [2019-10-22 08:58:31,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:31,075 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2019-10-22 08:58:31,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-22 08:58:31,075 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2019-10-22 08:58:31,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:58:31,076 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:31,076 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] [2019-10-22 08:58:31,276 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:31,277 INFO L410 AbstractCegarLoop]: === Iteration 14 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:31,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:31,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1675565934, now seen corresponding path program 1 times [2019-10-22 08:58:31,277 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:31,277 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631496739] [2019-10-22 08:58:31,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:31,278 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:31,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:31,389 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:31,390 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631496739] [2019-10-22 08:58:31,390 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575290296] [2019-10-22 08:58:31,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:31,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 08:58:31,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:31,611 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 08:58:31,611 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:31,612 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 18 [2019-10-22 08:58:31,612 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417255622] [2019-10-22 08:58:31,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-22 08:58:31,612 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:31,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-22 08:58:31,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2019-10-22 08:58:31,615 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand 19 states. [2019-10-22 08:58:32,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:32,156 INFO L93 Difference]: Finished difference Result 112 states and 126 transitions. [2019-10-22 08:58:32,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-22 08:58:32,157 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 29 [2019-10-22 08:58:32,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:32,158 INFO L225 Difference]: With dead ends: 112 [2019-10-22 08:58:32,158 INFO L226 Difference]: Without dead ends: 112 [2019-10-22 08:58:32,158 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 [2019-10-22 08:58:32,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2019-10-22 08:58:32,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 78. [2019-10-22 08:58:32,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-10-22 08:58:32,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2019-10-22 08:58:32,162 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 29 [2019-10-22 08:58:32,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:32,162 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2019-10-22 08:58:32,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-22 08:58:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2019-10-22 08:58:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-22 08:58:32,163 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:32,163 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] [2019-10-22 08:58:32,364 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:32,364 INFO L410 AbstractCegarLoop]: === Iteration 15 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:32,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:32,364 INFO L82 PathProgramCache]: Analyzing trace with hash -840553061, now seen corresponding path program 1 times [2019-10-22 08:58:32,365 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:32,365 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180486396] [2019-10-22 08:58:32,365 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:32,365 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:32,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:32,420 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 08:58:32,420 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180486396] [2019-10-22 08:58:32,421 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396668107] [2019-10-22 08:58:32,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:32,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 08:58:32,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:32,574 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:58:32,575 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:32,575 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2019-10-22 08:58:32,575 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185966340] [2019-10-22 08:58:32,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-22 08:58:32,576 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:32,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-22 08:58:32,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2019-10-22 08:58:32,576 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand 14 states. [2019-10-22 08:58:32,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:32,981 INFO L93 Difference]: Finished difference Result 123 states and 140 transitions. [2019-10-22 08:58:32,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-22 08:58:32,982 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 36 [2019-10-22 08:58:32,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:32,982 INFO L225 Difference]: With dead ends: 123 [2019-10-22 08:58:32,983 INFO L226 Difference]: Without dead ends: 98 [2019-10-22 08:58:32,983 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2019-10-22 08:58:32,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-10-22 08:58:32,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 77. [2019-10-22 08:58:32,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-10-22 08:58:32,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2019-10-22 08:58:32,986 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 36 [2019-10-22 08:58:32,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:32,987 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2019-10-22 08:58:32,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-22 08:58:32,987 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2019-10-22 08:58:32,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 08:58:32,988 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:32,988 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] [2019-10-22 08:58:33,189 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:33,189 INFO L410 AbstractCegarLoop]: === Iteration 16 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:33,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:33,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1631043378, now seen corresponding path program 2 times [2019-10-22 08:58:33,189 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:33,190 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983819894] [2019-10-22 08:58:33,190 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:33,190 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:33,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 08:58:33,386 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983819894] [2019-10-22 08:58:33,386 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404658092] [2019-10-22 08:58:33,386 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:33,474 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 08:58:33,474 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 08:58:33,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-22 08:58:33,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 08:58:33,662 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:33,662 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2019-10-22 08:58:33,662 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900857663] [2019-10-22 08:58:33,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-22 08:58:33,666 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:33,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-22 08:58:33,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2019-10-22 08:58:33,667 INFO L87 Difference]: Start difference. First operand 77 states and 91 transitions. Second operand 20 states. [2019-10-22 08:58:34,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:34,527 INFO L93 Difference]: Finished difference Result 91 states and 102 transitions. [2019-10-22 08:58:34,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-22 08:58:34,528 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 45 [2019-10-22 08:58:34,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:34,528 INFO L225 Difference]: With dead ends: 91 [2019-10-22 08:58:34,528 INFO L226 Difference]: Without dead ends: 91 [2019-10-22 08:58:34,529 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=286, Invalid=904, Unknown=0, NotChecked=0, Total=1190 [2019-10-22 08:58:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-10-22 08:58:34,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 77. [2019-10-22 08:58:34,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-10-22 08:58:34,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 90 transitions. [2019-10-22 08:58:34,531 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 90 transitions. Word has length 45 [2019-10-22 08:58:34,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:34,532 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 90 transitions. [2019-10-22 08:58:34,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-22 08:58:34,532 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 90 transitions. [2019-10-22 08:58:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-22 08:58:34,533 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:34,533 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] [2019-10-22 08:58:34,733 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:34,734 INFO L410 AbstractCegarLoop]: === Iteration 17 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:34,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:34,734 INFO L82 PathProgramCache]: Analyzing trace with hash -977262837, now seen corresponding path program 1 times [2019-10-22 08:58:34,734 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:34,734 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284975241] [2019-10-22 08:58:34,734 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:34,734 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:34,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 08:58:34,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284975241] [2019-10-22 08:58:34,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098525553] [2019-10-22 08:58:34,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:34,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-22 08:58:34,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:35,003 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 08:58:35,003 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:35,003 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2019-10-22 08:58:35,004 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069176320] [2019-10-22 08:58:35,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-22 08:58:35,004 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:35,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-22 08:58:35,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-10-22 08:58:35,006 INFO L87 Difference]: Start difference. First operand 77 states and 90 transitions. Second operand 17 states. [2019-10-22 08:58:35,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:35,448 INFO L93 Difference]: Finished difference Result 89 states and 98 transitions. [2019-10-22 08:58:35,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 08:58:35,449 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 46 [2019-10-22 08:58:35,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:35,449 INFO L225 Difference]: With dead ends: 89 [2019-10-22 08:58:35,449 INFO L226 Difference]: Without dead ends: 83 [2019-10-22 08:58:35,450 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=202, Invalid=554, Unknown=0, NotChecked=0, Total=756 [2019-10-22 08:58:35,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-10-22 08:58:35,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 55. [2019-10-22 08:58:35,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-22 08:58:35,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2019-10-22 08:58:35,452 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 46 [2019-10-22 08:58:35,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:35,452 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2019-10-22 08:58:35,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-22 08:58:35,452 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2019-10-22 08:58:35,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-22 08:58:35,453 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:35,453 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] [2019-10-22 08:58:35,654 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:35,654 INFO L410 AbstractCegarLoop]: === Iteration 18 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:35,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:35,654 INFO L82 PathProgramCache]: Analyzing trace with hash 200380590, now seen corresponding path program 3 times [2019-10-22 08:58:35,654 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:35,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553738352] [2019-10-22 08:58:35,655 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:35,655 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:35,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 08:58:35,739 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553738352] [2019-10-22 08:58:35,739 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502734036] [2019-10-22 08:58:35,740 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/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 [2019-10-22 08:58:35,842 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-22 08:58:35,842 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 08:58:35,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-22 08:58:35,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:36,027 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 08:58:36,027 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:36,028 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2019-10-22 08:58:36,028 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920818630] [2019-10-22 08:58:36,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-22 08:58:36,028 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:36,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-22 08:58:36,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2019-10-22 08:58:36,029 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand 20 states. [2019-10-22 08:58:36,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:36,974 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2019-10-22 08:58:36,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-22 08:58:36,974 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 50 [2019-10-22 08:58:36,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:36,975 INFO L225 Difference]: With dead ends: 102 [2019-10-22 08:58:36,975 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:58:36,975 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=336, Invalid=1386, Unknown=0, NotChecked=0, Total=1722 [2019-10-22 08:58:36,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:58:36,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:58:36,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:58:36,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:58:36,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2019-10-22 08:58:36,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:36,976 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:36,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-22 08:58:36,976 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:36,976 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:58:37,176 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:37,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:37 BoogieIcfgContainer [2019-10-22 08:58:37,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:37,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:37,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:37,184 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:37,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:25" (3/4) ... [2019-10-22 08:58:37,188 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:58:37,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-10-22 08:58:37,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-10-22 08:58:37,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-10-22 08:58:37,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-10-22 08:58:37,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-10-22 08:58:37,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure SelectionSort [2019-10-22 08:58:37,194 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-10-22 08:58:37,194 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-10-22 08:58:37,197 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-10-22 08:58:37,197 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 08:58:37,197 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 08:58:37,245 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0230abcb-2889-4ef3-ae93-943902612912/bin/uautomizer/witness.graphml [2019-10-22 08:58:37,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:37,249 INFO L168 Benchmark]: Toolchain (without parser) took 13312.91 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 385.9 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 213.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:37,249 INFO L168 Benchmark]: CDTParser took 0.15 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. [2019-10-22 08:58:37,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -197.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:37,250 INFO L168 Benchmark]: Boogie Preprocessor took 45.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:37,250 INFO L168 Benchmark]: RCFGBuilder took 647.25 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: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:37,250 INFO L168 Benchmark]: TraceAbstraction took 12090.32 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 229.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -39.0 MB). Peak memory consumption was 190.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:37,251 INFO L168 Benchmark]: Witness Printer took 67.15 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. [2019-10-22 08:58:37,252 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 458.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -197.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 647.25 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: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12090.32 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 229.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -39.0 MB). Peak memory consumption was 190.1 MB. Max. memory is 11.5 GB. * Witness Printer took 67.15 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: 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: 521]: 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: 524]: 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: 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: 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: 12.0s, OverallIterations: 18, TraceHistogramMax: 4, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 425 SDtfs, 2093 SDslu, 869 SDs, 0 SdLazy, 3844 SolverSat, 296 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 283 SyntacticMatches, 3 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 4.4s 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: 0.0s AutomataMinimizationTime, 18 MinimizatonAttempts, 214 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s 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...