./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/lis_unsafe.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_66a8f09b-117e-4486-902a-58684c1bacbe/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/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 9d5156303ae8e6f56e2b0966ff8f578a2264e0b7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:00:14,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:14,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:14,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:14,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:14,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:14,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:14,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:14,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:14,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:14,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:14,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:14,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:14,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:14,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:14,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:15,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:15,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:15,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:15,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:15,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:15,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:15,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:15,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:15,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:15,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:15,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:15,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:15,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:15,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:15,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:15,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:15,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:15,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:15,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:15,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:15,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:15,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:15,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:15,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:15,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:15,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 09:00:15,031 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:15,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:15,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:15,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:15,033 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:15,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:15,034 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:15,034 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:15,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:15,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:15,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:15,035 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:00:15,035 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:00:15,035 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:00:15,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:15,035 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:15,036 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:15,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:15,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:15,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:15,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:15,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:15,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:15,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:15,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:15,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:15,037 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_66a8f09b-117e-4486-902a-58684c1bacbe/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 -> 9d5156303ae8e6f56e2b0966ff8f578a2264e0b7 [2019-10-22 09:00:15,063 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:15,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:15,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:15,078 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:15,078 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:15,079 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2019-10-22 09:00:15,131 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/bin/uautomizer/data/c62a3f0d3/9221a2c61298450a9fb738a88945fd51/FLAGacc275c63 [2019-10-22 09:00:15,568 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:15,569 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2019-10-22 09:00:15,579 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/bin/uautomizer/data/c62a3f0d3/9221a2c61298450a9fb738a88945fd51/FLAGacc275c63 [2019-10-22 09:00:15,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/bin/uautomizer/data/c62a3f0d3/9221a2c61298450a9fb738a88945fd51 [2019-10-22 09:00:15,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:15,899 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:00:15,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:15,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:15,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:15,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:15" (1/1) ... [2019-10-22 09:00:15,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3271d73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:15, skipping insertion in model container [2019-10-22 09:00:15,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:15" (1/1) ... [2019-10-22 09:00:15,913 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:15,946 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:16,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:16,317 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:16,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:16,395 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:16,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:16 WrapperNode [2019-10-22 09:00:16,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:16,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:16,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:16,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:16,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:16" (1/1) ... [2019-10-22 09:00:16,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:16" (1/1) ... [2019-10-22 09:00:16,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:16" (1/1) ... [2019-10-22 09:00:16,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:16" (1/1) ... [2019-10-22 09:00:16,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:16" (1/1) ... [2019-10-22 09:00:16,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:16" (1/1) ... [2019-10-22 09:00:16,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:16" (1/1) ... [2019-10-22 09:00:16,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:16,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:16,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:16,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:16,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/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 09:00:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:00:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 09:00:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 09:00:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 09:00:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 09:00:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 09:00:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure lis [2019-10-22 09:00:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:00:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:00:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:00:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:00:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:00:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:00:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:00:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:00:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:00:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:00:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:00:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:00:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:00:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:00:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:00:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:00:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:00:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 09:00:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 09:00:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 09:00:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 09:00:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 09:00:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:00:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:00:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:00:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:00:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:00:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:00:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:00:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:00:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:00:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:00:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:00:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:00:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:00:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:00:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:00:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:00:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:00:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:00:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:00:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:00:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:00:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:00:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:00:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:00:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:00:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:00:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:00:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:00:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:00:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:00:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:00:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:00:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:00:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:00:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:00:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:00:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:00:16,508 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:00:16,508 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:00:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:00:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:00:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:00:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:00:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:00:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:00:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:00:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:00:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:00:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:00:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:00:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:00:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:00:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:00:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:00:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:00:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:00:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:00:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:00:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:00:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:00:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:00:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:00:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:00:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:00:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:00:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:00:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:00:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:00:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:00:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:00:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:00:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:00:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:00:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:00:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:00:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:00:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:00:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:00:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:00:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:00:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:00:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:00:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:00:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:00:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:00:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:00:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 09:00:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure lis [2019-10-22 09:00:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:00:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:00:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:00:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:00:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:00:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:17,007 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:17,007 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 09:00:17,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:17 BoogieIcfgContainer [2019-10-22 09:00:17,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:17,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:17,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:17,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:17,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:15" (1/3) ... [2019-10-22 09:00:17,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c50f2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:17, skipping insertion in model container [2019-10-22 09:00:17,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:16" (2/3) ... [2019-10-22 09:00:17,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c50f2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:17, skipping insertion in model container [2019-10-22 09:00:17,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:17" (3/3) ... [2019-10-22 09:00:17,016 INFO L109 eAbstractionObserver]: Analyzing ICFG lis_unsafe.i [2019-10-22 09:00:17,024 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:17,031 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2019-10-22 09:00:17,039 INFO L249 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2019-10-22 09:00:17,054 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:17,054 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:00:17,055 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:17,055 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:17,055 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:17,055 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:17,055 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:17,055 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:17,073 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2019-10-22 09:00:17,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:00:17,082 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:17,083 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:17,085 INFO L410 AbstractCegarLoop]: === Iteration 1 === [lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr12REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr11REQUIRES_VIOLATION, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr10REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr18REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr1REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:17,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:17,090 INFO L82 PathProgramCache]: Analyzing trace with hash -378942404, now seen corresponding path program 1 times [2019-10-22 09:00:17,097 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:17,098 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756877776] [2019-10-22 09:00:17,098 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:17,098 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:17,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:17,258 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 09:00:17,258 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756877776] [2019-10-22 09:00:17,259 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:17,259 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:17,259 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861249559] [2019-10-22 09:00:17,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:17,263 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:17,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:17,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:17,278 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 4 states. [2019-10-22 09:00:17,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:17,473 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2019-10-22 09:00:17,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:17,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 09:00:17,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:17,482 INFO L225 Difference]: With dead ends: 70 [2019-10-22 09:00:17,482 INFO L226 Difference]: Without dead ends: 67 [2019-10-22 09:00:17,484 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 09:00:17,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-10-22 09:00:17,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2019-10-22 09:00:17,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-10-22 09:00:17,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2019-10-22 09:00:17,516 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 10 [2019-10-22 09:00:17,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:17,516 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2019-10-22 09:00:17,516 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:17,516 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2019-10-22 09:00:17,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:00:17,517 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:17,517 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:17,517 INFO L410 AbstractCegarLoop]: === Iteration 2 === [lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr12REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr11REQUIRES_VIOLATION, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr10REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr18REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr1REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:17,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:17,518 INFO L82 PathProgramCache]: Analyzing trace with hash -378942403, now seen corresponding path program 1 times [2019-10-22 09:00:17,518 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:17,518 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37617509] [2019-10-22 09:00:17,518 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:17,518 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:17,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:17,635 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 09:00:17,635 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37617509] [2019-10-22 09:00:17,635 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:17,636 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:17,636 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002907571] [2019-10-22 09:00:17,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:17,637 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:17,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:17,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:17,638 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 5 states. [2019-10-22 09:00:17,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:17,850 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2019-10-22 09:00:17,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:00:17,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-22 09:00:17,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:17,852 INFO L225 Difference]: With dead ends: 74 [2019-10-22 09:00:17,852 INFO L226 Difference]: Without dead ends: 74 [2019-10-22 09:00:17,853 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:17,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-10-22 09:00:17,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 69. [2019-10-22 09:00:17,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-10-22 09:00:17,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2019-10-22 09:00:17,861 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 10 [2019-10-22 09:00:17,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:17,861 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2019-10-22 09:00:17,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:17,861 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2019-10-22 09:00:17,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 09:00:17,862 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:17,862 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:17,862 INFO L410 AbstractCegarLoop]: === Iteration 3 === [lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr12REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr11REQUIRES_VIOLATION, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr10REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr18REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr1REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:17,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:17,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1137687359, now seen corresponding path program 1 times [2019-10-22 09:00:17,862 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:17,862 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810081053] [2019-10-22 09:00:17,863 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:17,863 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:17,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:17,920 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 09:00:17,920 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810081053] [2019-10-22 09:00:17,920 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:17,920 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:17,920 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280853938] [2019-10-22 09:00:17,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:17,921 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:17,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:17,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:17,921 INFO L87 Difference]: Start difference. First operand 69 states and 76 transitions. Second operand 4 states. [2019-10-22 09:00:18,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:18,030 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2019-10-22 09:00:18,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:18,031 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-22 09:00:18,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:18,032 INFO L225 Difference]: With dead ends: 67 [2019-10-22 09:00:18,032 INFO L226 Difference]: Without dead ends: 67 [2019-10-22 09:00:18,032 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 09:00:18,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-10-22 09:00:18,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2019-10-22 09:00:18,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-10-22 09:00:18,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2019-10-22 09:00:18,039 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 11 [2019-10-22 09:00:18,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:18,039 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2019-10-22 09:00:18,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:18,039 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2019-10-22 09:00:18,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 09:00:18,040 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:18,040 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:18,041 INFO L410 AbstractCegarLoop]: === Iteration 4 === [lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr12REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr11REQUIRES_VIOLATION, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr10REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr18REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr1REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:18,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:18,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1137687360, now seen corresponding path program 1 times [2019-10-22 09:00:18,042 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:18,042 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147187775] [2019-10-22 09:00:18,042 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:18,042 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:18,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:18,141 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 09:00:18,146 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147187775] [2019-10-22 09:00:18,146 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:18,146 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:00:18,147 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276571617] [2019-10-22 09:00:18,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:18,147 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:18,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:18,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:18,148 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 6 states. [2019-10-22 09:00:18,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:18,427 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2019-10-22 09:00:18,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:18,428 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-10-22 09:00:18,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:18,428 INFO L225 Difference]: With dead ends: 81 [2019-10-22 09:00:18,429 INFO L226 Difference]: Without dead ends: 81 [2019-10-22 09:00:18,429 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 09:00:18,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-10-22 09:00:18,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 63. [2019-10-22 09:00:18,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-10-22 09:00:18,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2019-10-22 09:00:18,435 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 11 [2019-10-22 09:00:18,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:18,435 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2019-10-22 09:00:18,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:18,435 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2019-10-22 09:00:18,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 09:00:18,436 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:18,436 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:18,436 INFO L410 AbstractCegarLoop]: === Iteration 5 === [lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr12REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr11REQUIRES_VIOLATION, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr10REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr18REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr1REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:18,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:18,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1900611837, now seen corresponding path program 1 times [2019-10-22 09:00:18,437 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:18,437 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384316320] [2019-10-22 09:00:18,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:18,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:18,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:18,493 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 09:00:18,494 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384316320] [2019-10-22 09:00:18,494 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:18,494 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:00:18,494 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933367462] [2019-10-22 09:00:18,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:18,495 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:18,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:18,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:18,495 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand 6 states. [2019-10-22 09:00:18,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:18,670 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2019-10-22 09:00:18,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:00:18,671 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-10-22 09:00:18,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:18,673 INFO L225 Difference]: With dead ends: 90 [2019-10-22 09:00:18,673 INFO L226 Difference]: Without dead ends: 90 [2019-10-22 09:00:18,674 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:18,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-10-22 09:00:18,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 69. [2019-10-22 09:00:18,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-10-22 09:00:18,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2019-10-22 09:00:18,680 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 13 [2019-10-22 09:00:18,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:18,680 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2019-10-22 09:00:18,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:18,680 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2019-10-22 09:00:18,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 09:00:18,681 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:18,681 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:18,681 INFO L410 AbstractCegarLoop]: === Iteration 6 === [lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr12REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr11REQUIRES_VIOLATION, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr10REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr18REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr1REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:18,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:18,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1257177986, now seen corresponding path program 1 times [2019-10-22 09:00:18,682 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:18,682 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871808242] [2019-10-22 09:00:18,682 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:18,683 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:18,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:18,823 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 09:00:18,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871808242] [2019-10-22 09:00:18,824 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797195396] [2019-10-22 09:00:18,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/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 09:00:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:18,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-22 09:00:18,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:18,968 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_30|], 1=[|v_#valid_42|]} [2019-10-22 09:00:18,976 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:18,990 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2019-10-22 09:00:18,992 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:19,002 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:19,009 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-10-22 09:00:19,009 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:19,016 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:19,017 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:19,018 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:28, output treesize:25 [2019-10-22 09:00:19,103 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 09:00:19,103 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:19,103 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2019-10-22 09:00:19,104 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75867143] [2019-10-22 09:00:19,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 09:00:19,104 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:19,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 09:00:19,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:19,105 INFO L87 Difference]: Start difference. First operand 69 states and 77 transitions. Second operand 10 states. [2019-10-22 09:00:19,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:19,376 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2019-10-22 09:00:19,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:19,376 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2019-10-22 09:00:19,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:19,377 INFO L225 Difference]: With dead ends: 85 [2019-10-22 09:00:19,377 INFO L226 Difference]: Without dead ends: 85 [2019-10-22 09:00:19,377 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:00:19,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-10-22 09:00:19,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 69. [2019-10-22 09:00:19,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-10-22 09:00:19,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2019-10-22 09:00:19,383 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 14 [2019-10-22 09:00:19,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:19,383 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2019-10-22 09:00:19,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 09:00:19,383 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2019-10-22 09:00:19,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 09:00:19,384 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:19,384 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:19,585 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:19,585 INFO L410 AbstractCegarLoop]: === Iteration 7 === [lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr12REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr11REQUIRES_VIOLATION, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr10REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr18REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr1REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:19,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:19,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1127330042, now seen corresponding path program 1 times [2019-10-22 09:00:19,586 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:19,586 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696000776] [2019-10-22 09:00:19,586 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:19,586 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:19,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:19,643 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 09:00:19,643 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696000776] [2019-10-22 09:00:19,643 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:19,643 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:19,644 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554395492] [2019-10-22 09:00:19,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:19,644 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:19,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:19,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:19,645 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand 4 states. [2019-10-22 09:00:19,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:19,735 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2019-10-22 09:00:19,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:19,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-10-22 09:00:19,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:19,736 INFO L225 Difference]: With dead ends: 68 [2019-10-22 09:00:19,736 INFO L226 Difference]: Without dead ends: 68 [2019-10-22 09:00:19,736 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 09:00:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-10-22 09:00:19,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-10-22 09:00:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-22 09:00:19,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2019-10-22 09:00:19,744 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 15 [2019-10-22 09:00:19,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:19,744 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2019-10-22 09:00:19,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:19,745 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2019-10-22 09:00:19,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 09:00:19,745 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:19,745 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:19,745 INFO L410 AbstractCegarLoop]: === Iteration 8 === [lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr12REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr11REQUIRES_VIOLATION, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr10REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr18REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr1REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:19,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:19,746 INFO L82 PathProgramCache]: Analyzing trace with hash 473021854, now seen corresponding path program 1 times [2019-10-22 09:00:19,746 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:19,746 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991775785] [2019-10-22 09:00:19,746 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:19,746 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:19,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:19,811 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 09:00:19,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991775785] [2019-10-22 09:00:19,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186773696] [2019-10-22 09:00:19,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/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 09:00:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:19,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 09:00:19,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:19,924 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 09:00:19,924 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:19,924 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2019-10-22 09:00:19,924 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290890377] [2019-10-22 09:00:19,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:00:19,925 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:19,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:00:19,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:00:19,925 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand 9 states. [2019-10-22 09:00:20,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:20,114 INFO L93 Difference]: Finished difference Result 146 states and 164 transitions. [2019-10-22 09:00:20,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:00:20,114 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2019-10-22 09:00:20,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:20,115 INFO L225 Difference]: With dead ends: 146 [2019-10-22 09:00:20,115 INFO L226 Difference]: Without dead ends: 146 [2019-10-22 09:00:20,116 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:00:20,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-10-22 09:00:20,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 80. [2019-10-22 09:00:20,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-10-22 09:00:20,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 95 transitions. [2019-10-22 09:00:20,121 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 95 transitions. Word has length 17 [2019-10-22 09:00:20,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:20,121 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 95 transitions. [2019-10-22 09:00:20,121 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:00:20,121 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 95 transitions. [2019-10-22 09:00:20,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 09:00:20,122 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:20,122 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 09:00:20,322 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:20,323 INFO L410 AbstractCegarLoop]: === Iteration 9 === [lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr12REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr11REQUIRES_VIOLATION, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr10REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr18REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr1REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:20,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:20,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1939839817, now seen corresponding path program 1 times [2019-10-22 09:00:20,323 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:20,323 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438622952] [2019-10-22 09:00:20,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:20,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:20,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:20,351 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 09:00:20,351 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438622952] [2019-10-22 09:00:20,351 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:20,351 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:20,351 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628840733] [2019-10-22 09:00:20,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:20,352 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:20,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:20,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:20,352 INFO L87 Difference]: Start difference. First operand 80 states and 95 transitions. Second operand 4 states. [2019-10-22 09:00:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:20,419 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2019-10-22 09:00:20,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:20,419 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-10-22 09:00:20,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:20,421 INFO L225 Difference]: With dead ends: 79 [2019-10-22 09:00:20,421 INFO L226 Difference]: Without dead ends: 79 [2019-10-22 09:00:20,421 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 09:00:20,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-10-22 09:00:20,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-10-22 09:00:20,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-10-22 09:00:20,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 94 transitions. [2019-10-22 09:00:20,428 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 94 transitions. Word has length 18 [2019-10-22 09:00:20,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:20,429 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 94 transitions. [2019-10-22 09:00:20,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:20,429 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 94 transitions. [2019-10-22 09:00:20,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 09:00:20,429 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:20,429 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 09:00:20,430 INFO L410 AbstractCegarLoop]: === Iteration 10 === [lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr12REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr11REQUIRES_VIOLATION, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr10REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr18REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr1REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:20,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1778760935, now seen corresponding path program 1 times [2019-10-22 09:00:20,430 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:20,430 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954188287] [2019-10-22 09:00:20,430 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:20,430 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:20,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:20,519 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 09:00:20,519 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954188287] [2019-10-22 09:00:20,522 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437747411] [2019-10-22 09:00:20,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/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 09:00:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:20,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 09:00:20,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:20,640 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 09:00:20,640 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:20,640 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-10-22 09:00:20,640 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503848558] [2019-10-22 09:00:20,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:00:20,641 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:20,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:00:20,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:00:20,641 INFO L87 Difference]: Start difference. First operand 79 states and 94 transitions. Second operand 9 states. [2019-10-22 09:00:20,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:20,858 INFO L93 Difference]: Finished difference Result 98 states and 111 transitions. [2019-10-22 09:00:20,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:00:20,858 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-10-22 09:00:20,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:20,859 INFO L225 Difference]: With dead ends: 98 [2019-10-22 09:00:20,859 INFO L226 Difference]: Without dead ends: 98 [2019-10-22 09:00:20,860 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:20,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-10-22 09:00:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 73. [2019-10-22 09:00:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-10-22 09:00:20,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2019-10-22 09:00:20,863 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 18 [2019-10-22 09:00:20,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:20,864 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2019-10-22 09:00:20,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:00:20,864 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2019-10-22 09:00:20,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:00:20,864 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:20,864 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:21,065 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:21,065 INFO L410 AbstractCegarLoop]: === Iteration 11 === [lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr12REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr11REQUIRES_VIOLATION, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr10REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr18REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr1REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:21,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:21,066 INFO L82 PathProgramCache]: Analyzing trace with hash -5492022, now seen corresponding path program 1 times [2019-10-22 09:00:21,066 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:21,066 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037369160] [2019-10-22 09:00:21,066 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:21,066 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:21,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:21,100 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 09:00:21,101 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037369160] [2019-10-22 09:00:21,101 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:21,101 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:21,101 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244616689] [2019-10-22 09:00:21,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:21,101 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:21,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:21,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:21,102 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand 5 states. [2019-10-22 09:00:21,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:21,179 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2019-10-22 09:00:21,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:21,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-10-22 09:00:21,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:21,181 INFO L225 Difference]: With dead ends: 72 [2019-10-22 09:00:21,181 INFO L226 Difference]: Without dead ends: 72 [2019-10-22 09:00:21,181 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:21,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-22 09:00:21,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-10-22 09:00:21,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-22 09:00:21,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2019-10-22 09:00:21,184 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 19 [2019-10-22 09:00:21,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:21,185 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2019-10-22 09:00:21,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:21,185 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2019-10-22 09:00:21,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 09:00:21,185 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:21,186 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:21,186 INFO L410 AbstractCegarLoop]: === Iteration 12 === [lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr12REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr11REQUIRES_VIOLATION, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr10REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr18REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr1REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:21,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:21,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1264697017, now seen corresponding path program 2 times [2019-10-22 09:00:21,186 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:21,186 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997967914] [2019-10-22 09:00:21,187 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:21,187 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:21,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:21,244 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:21,244 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:21,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:21 BoogieIcfgContainer [2019-10-22 09:00:21,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:21,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:21,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:21,271 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:21,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:17" (3/4) ... [2019-10-22 09:00:21,273 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:00:21,318 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_66a8f09b-117e-4486-902a-58684c1bacbe/bin/uautomizer/witness.graphml [2019-10-22 09:00:21,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:21,323 INFO L168 Benchmark]: Toolchain (without parser) took 5424.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.8 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:21,323 INFO L168 Benchmark]: CDTParser took 0.16 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 09:00:21,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:21,326 INFO L168 Benchmark]: Boogie Preprocessor took 54.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:21,326 INFO L168 Benchmark]: RCFGBuilder took 557.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:21,326 INFO L168 Benchmark]: TraceAbstraction took 4260.98 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -63.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:21,327 INFO L168 Benchmark]: Witness Printer took 50.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:21,328 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 496.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 557.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4260.98 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -63.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 50.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 521]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L531] int *a; [L532] int N = __VERIFIER_nondet_int(); [L533] CALL lis(a, N) VAL [\old(N)=2, a={10:11}] [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) malloc(sizeof(int) * N) [L516] prev = (int*) malloc(sizeof(int) * N) [L517] i = 0 VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=0, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L517] COND TRUE i < N VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=0, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L518] best[i] = 1 VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=0, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L518] prev[i] = i VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=0, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L517] i++ VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=1, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L517] COND TRUE i < N VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=1, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L518] best[i] = 1 VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=1, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L518] prev[i] = i VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=1, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L517] i++ VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=2, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L517] COND FALSE !(i < N) VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=2, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L519] i = 1 VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=1, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L519] COND TRUE i < N [L520] j = 0 VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=1, j=0, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L520] COND TRUE j < i VAL [\old(N)=2, a={10:11}, a={10:11}, best={1:0}, i=1, j=0, malloc(sizeof(int) * N)={-1:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=2, prev={-1:0}] [L521] a[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 93 locations, 29 error locations. Result: UNSAFE, OverallTime: 4.2s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 519 SDtfs, 889 SDslu, 598 SDs, 0 SdLazy, 1557 SolverSat, 101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=8, 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, 11 MinimizatonAttempts, 151 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 226 NumberOfCodeBlocks, 226 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 191 ConstructedInterpolants, 6 QuantifiedInterpolants, 15537 SizeOfPredicates, 10 NumberOfNonLiveVariables, 282 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 2/8 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 incorrect! Received shutdown request...