./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/array03-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/array03-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/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 7541988e6da98f0cff4ac2bb6ea7091660417951 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:06:48,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:06:48,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:06:48,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:06:48,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:06:48,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:06:48,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:06:48,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:06:48,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:06:48,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:06:48,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:06:48,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:06:48,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:06:48,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:06:48,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:06:48,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:06:48,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:06:48,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:06:48,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:06:48,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:06:48,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:06:48,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:06:48,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:06:48,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:06:48,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:06:48,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:06:48,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:06:48,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:06:48,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:06:48,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:06:48,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:06:48,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:06:48,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:06:48,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:06:48,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:06:48,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:06:48,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:06:48,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:06:48,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:06:49,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:06:49,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:06:49,001 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-15 23:06:49,015 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:06:49,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:06:49,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:06:49,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:06:49,017 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:06:49,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:06:49,018 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:06:49,018 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:06:49,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:06:49,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:06:49,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:06:49,019 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 23:06:49,019 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 23:06:49,019 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-15 23:06:49,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:06:49,020 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:06:49,020 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:06:49,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:06:49,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:06:49,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:06:49,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:06:49,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:06:49,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:06:49,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:06:49,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:06:49,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:06:49,022 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/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 -> 7541988e6da98f0cff4ac2bb6ea7091660417951 [2019-11-15 23:06:49,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:06:49,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:06:49,068 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:06:49,069 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:06:49,072 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:06:49,073 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/array03-alloca-2.i [2019-11-15 23:06:49,123 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/data/26beb3327/c02c5e5444814ba692cea68342120842/FLAGc5466c572 [2019-11-15 23:06:49,552 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:06:49,556 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/sv-benchmarks/c/array-memsafety/array03-alloca-2.i [2019-11-15 23:06:49,573 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/data/26beb3327/c02c5e5444814ba692cea68342120842/FLAGc5466c572 [2019-11-15 23:06:49,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/data/26beb3327/c02c5e5444814ba692cea68342120842 [2019-11-15 23:06:49,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:06:49,848 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 23:06:49,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:06:49,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:06:49,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:06:49,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:06:49" (1/1) ... [2019-11-15 23:06:49,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42ea8c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:06:49, skipping insertion in model container [2019-11-15 23:06:49,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:06:49" (1/1) ... [2019-11-15 23:06:49,862 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:06:49,896 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:06:50,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:06:50,260 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:06:50,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:06:50,384 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:06:50,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:06:50 WrapperNode [2019-11-15 23:06:50,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:06:50,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:06:50,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:06:50,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:06:50,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:06:50" (1/1) ... [2019-11-15 23:06:50,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:06:50" (1/1) ... [2019-11-15 23:06:50,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:06:50" (1/1) ... [2019-11-15 23:06:50,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:06:50" (1/1) ... [2019-11-15 23:06:50,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:06:50" (1/1) ... [2019-11-15 23:06:50,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:06:50" (1/1) ... [2019-11-15 23:06:50,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:06:50" (1/1) ... [2019-11-15 23:06:50,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:06:50,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:06:50,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:06:50,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:06:50,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:06:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:06:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 23:06:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:06:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-15 23:06:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-15 23:06:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-15 23:06:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-15 23:06:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-15 23:06:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2019-11-15 23:06:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 23:06:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 23:06:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 23:06:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 23:06:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 23:06:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 23:06:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 23:06:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 23:06:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 23:06:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 23:06:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 23:06:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 23:06:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 23:06:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 23:06:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 23:06:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 23:06:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 23:06:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-15 23:06:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-15 23:06:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-15 23:06:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-15 23:06:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-15 23:06:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 23:06:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 23:06:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 23:06:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 23:06:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 23:06:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 23:06:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 23:06:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 23:06:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 23:06:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 23:06:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 23:06:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 23:06:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 23:06:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 23:06:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 23:06:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 23:06:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 23:06:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 23:06:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 23:06:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 23:06:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 23:06:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 23:06:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 23:06:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 23:06:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 23:06:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 23:06:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 23:06:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 23:06:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 23:06:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 23:06:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 23:06:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 23:06:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 23:06:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 23:06:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 23:06:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 23:06:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 23:06:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 23:06:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 23:06:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 23:06:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 23:06:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 23:06:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 23:06:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 23:06:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 23:06:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 23:06:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 23:06:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 23:06:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 23:06:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 23:06:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 23:06:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 23:06:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 23:06:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 23:06:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 23:06:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 23:06:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 23:06:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 23:06:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 23:06:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 23:06:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 23:06:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 23:06:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 23:06:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 23:06:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 23:06:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 23:06:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 23:06:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 23:06:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 23:06:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 23:06:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 23:06:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 23:06:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 23:06:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 23:06:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 23:06:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 23:06:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 23:06:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 23:06:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 23:06:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 23:06:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 23:06:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 23:06:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 23:06:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 23:06:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 23:06:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 23:06:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-15 23:06:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2019-11-15 23:06:50,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:06:50,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:06:50,525 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 23:06:50,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:06:50,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:06:50,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 23:06:50,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:06:50,973 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:06:50,973 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-15 23:06:50,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:06:50 BoogieIcfgContainer [2019-11-15 23:06:50,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:06:50,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:06:50,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:06:50,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:06:50,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:06:49" (1/3) ... [2019-11-15 23:06:50,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35439536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:06:50, skipping insertion in model container [2019-11-15 23:06:50,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:06:50" (2/3) ... [2019-11-15 23:06:50,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35439536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:06:50, skipping insertion in model container [2019-11-15 23:06:50,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:06:50" (3/3) ... [2019-11-15 23:06:50,981 INFO L109 eAbstractionObserver]: Analyzing ICFG array03-alloca-2.i [2019-11-15 23:06:50,993 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:06:51,004 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2019-11-15 23:06:51,013 INFO L249 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2019-11-15 23:06:51,031 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:06:51,032 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 23:06:51,032 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:06:51,032 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:06:51,032 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:06:51,032 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:06:51,033 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:06:51,033 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:06:51,048 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-11-15 23:06:51,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:06:51,056 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:06:51,057 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:06:51,059 INFO L410 AbstractCegarLoop]: === Iteration 1 === [test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:06:51,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:06:51,067 INFO L82 PathProgramCache]: Analyzing trace with hash 200343874, now seen corresponding path program 1 times [2019-11-15 23:06:51,075 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:06:51,075 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150572161] [2019-11-15 23:06:51,075 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:51,075 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:51,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:06:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:51,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:06:51,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150572161] [2019-11-15 23:06:51,250 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:06:51,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:06:51,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446364543] [2019-11-15 23:06:51,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:06:51,255 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:06:51,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:06:51,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:06:51,270 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 4 states. [2019-11-15 23:06:51,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:06:51,447 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2019-11-15 23:06:51,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:06:51,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-15 23:06:51,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:06:51,461 INFO L225 Difference]: With dead ends: 52 [2019-11-15 23:06:51,461 INFO L226 Difference]: Without dead ends: 49 [2019-11-15 23:06:51,465 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:06:51,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-15 23:06:51,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-11-15 23:06:51,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-11-15 23:06:51,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2019-11-15 23:06:51,517 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 10 [2019-11-15 23:06:51,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:06:51,517 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2019-11-15 23:06:51,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:06:51,518 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2019-11-15 23:06:51,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:06:51,519 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:06:51,519 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:06:51,519 INFO L410 AbstractCegarLoop]: === Iteration 2 === [test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:06:51,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:06:51,520 INFO L82 PathProgramCache]: Analyzing trace with hash 200343875, now seen corresponding path program 1 times [2019-11-15 23:06:51,520 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:06:51,520 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794449073] [2019-11-15 23:06:51,520 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:51,521 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:51,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:06:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:51,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:06:51,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794449073] [2019-11-15 23:06:51,638 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:06:51,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:06:51,638 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413408186] [2019-11-15 23:06:51,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:06:51,639 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:06:51,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:06:51,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:06:51,640 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 6 states. [2019-11-15 23:06:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:06:51,844 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2019-11-15 23:06:51,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:06:51,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-15 23:06:51,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:06:51,846 INFO L225 Difference]: With dead ends: 53 [2019-11-15 23:06:51,846 INFO L226 Difference]: Without dead ends: 53 [2019-11-15 23:06:51,847 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:06:51,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-15 23:06:51,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2019-11-15 23:06:51,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-15 23:06:51,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2019-11-15 23:06:51,853 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 10 [2019-11-15 23:06:51,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:06:51,855 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2019-11-15 23:06:51,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:06:51,855 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2019-11-15 23:06:51,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 23:06:51,856 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:06:51,856 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:06:51,857 INFO L410 AbstractCegarLoop]: === Iteration 3 === [test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:06:51,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:06:51,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1121374586, now seen corresponding path program 1 times [2019-11-15 23:06:51,857 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:06:51,857 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781110337] [2019-11-15 23:06:51,857 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:51,858 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:51,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:06:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:06:51,979 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781110337] [2019-11-15 23:06:51,979 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873025713] [2019-11-15 23:06:51,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:06:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:52,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:06:52,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:06:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:06:52,185 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 23:06:52,185 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2019-11-15 23:06:52,185 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520189933] [2019-11-15 23:06:52,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:06:52,186 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:06:52,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:06:52,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:06:52,187 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand 5 states. [2019-11-15 23:06:52,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:06:52,242 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2019-11-15 23:06:52,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:06:52,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-15 23:06:52,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:06:52,245 INFO L225 Difference]: With dead ends: 61 [2019-11-15 23:06:52,245 INFO L226 Difference]: Without dead ends: 61 [2019-11-15 23:06:52,245 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:06:52,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-15 23:06:52,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2019-11-15 23:06:52,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-11-15 23:06:52,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2019-11-15 23:06:52,267 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 14 [2019-11-15 23:06:52,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:06:52,268 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2019-11-15 23:06:52,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:06:52,274 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2019-11-15 23:06:52,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 23:06:52,275 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:06:52,275 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:06:52,478 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:06:52,478 INFO L410 AbstractCegarLoop]: === Iteration 4 === [test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:06:52,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:06:52,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1930721212, now seen corresponding path program 1 times [2019-11-15 23:06:52,479 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:06:52,479 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018418322] [2019-11-15 23:06:52,479 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:52,479 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:52,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:06:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:52,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:06:52,606 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018418322] [2019-11-15 23:06:52,607 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115988451] [2019-11-15 23:06:52,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:06:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:52,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 23:06:52,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:06:52,770 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-11-15 23:06:52,770 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:06:52,779 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:06:52,780 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:06:52,780 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-11-15 23:06:52,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:06:52,836 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:06:52,837 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2019-11-15 23:06:52,837 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678717163] [2019-11-15 23:06:52,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:06:52,837 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:06:52,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:06:52,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:06:52,838 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand 8 states. [2019-11-15 23:06:53,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:06:53,111 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2019-11-15 23:06:53,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:06:53,112 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-15 23:06:53,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:06:53,113 INFO L225 Difference]: With dead ends: 58 [2019-11-15 23:06:53,113 INFO L226 Difference]: Without dead ends: 58 [2019-11-15 23:06:53,114 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:06:53,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-15 23:06:53,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2019-11-15 23:06:53,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-15 23:06:53,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2019-11-15 23:06:53,127 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 14 [2019-11-15 23:06:53,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:06:53,127 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2019-11-15 23:06:53,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:06:53,128 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2019-11-15 23:06:53,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 23:06:53,146 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:06:53,146 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:06:53,352 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:06:53,352 INFO L410 AbstractCegarLoop]: === Iteration 5 === [test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:06:53,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:06:53,353 INFO L82 PathProgramCache]: Analyzing trace with hash -614115820, now seen corresponding path program 1 times [2019-11-15 23:06:53,353 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:06:53,353 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361713239] [2019-11-15 23:06:53,354 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:53,354 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:53,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:06:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:53,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:06:53,430 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361713239] [2019-11-15 23:06:53,430 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:06:53,430 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:06:53,430 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029525155] [2019-11-15 23:06:53,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:06:53,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:06:53,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:06:53,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:06:53,431 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 6 states. [2019-11-15 23:06:53,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:06:53,584 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2019-11-15 23:06:53,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:06:53,584 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-15 23:06:53,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:06:53,585 INFO L225 Difference]: With dead ends: 48 [2019-11-15 23:06:53,585 INFO L226 Difference]: Without dead ends: 48 [2019-11-15 23:06:53,586 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:06:53,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-15 23:06:53,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2019-11-15 23:06:53,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-15 23:06:53,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2019-11-15 23:06:53,591 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 17 [2019-11-15 23:06:53,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:06:53,591 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2019-11-15 23:06:53,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:06:53,591 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2019-11-15 23:06:53,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 23:06:53,592 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:06:53,592 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:06:53,593 INFO L410 AbstractCegarLoop]: === Iteration 6 === [test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:06:53,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:06:53,593 INFO L82 PathProgramCache]: Analyzing trace with hash -614115819, now seen corresponding path program 1 times [2019-11-15 23:06:53,593 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:06:53,593 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936748768] [2019-11-15 23:06:53,594 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:53,594 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:53,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:06:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:53,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 23:06:53,721 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936748768] [2019-11-15 23:06:53,722 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:06:53,722 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:06:53,722 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750254442] [2019-11-15 23:06:53,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:06:53,723 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:06:53,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:06:53,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:06:53,723 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand 7 states. [2019-11-15 23:06:54,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:06:54,001 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2019-11-15 23:06:54,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:06:54,001 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-15 23:06:54,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:06:54,004 INFO L225 Difference]: With dead ends: 65 [2019-11-15 23:06:54,004 INFO L226 Difference]: Without dead ends: 65 [2019-11-15 23:06:54,004 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:06:54,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-11-15 23:06:54,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2019-11-15 23:06:54,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-15 23:06:54,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2019-11-15 23:06:54,010 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 71 transitions. Word has length 17 [2019-11-15 23:06:54,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:06:54,010 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 71 transitions. [2019-11-15 23:06:54,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:06:54,010 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 71 transitions. [2019-11-15 23:06:54,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-15 23:06:54,011 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:06:54,011 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:06:54,011 INFO L410 AbstractCegarLoop]: === Iteration 7 === [test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:06:54,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:06:54,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1436032804, now seen corresponding path program 1 times [2019-11-15 23:06:54,012 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:06:54,012 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512748808] [2019-11-15 23:06:54,012 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:54,012 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:54,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:06:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:54,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 23:06:54,105 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512748808] [2019-11-15 23:06:54,105 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:06:54,105 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:06:54,106 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927081136] [2019-11-15 23:06:54,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:06:54,106 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:06:54,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:06:54,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:06:54,107 INFO L87 Difference]: Start difference. First operand 62 states and 71 transitions. Second operand 7 states. [2019-11-15 23:06:54,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:06:54,398 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions. [2019-11-15 23:06:54,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:06:54,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-11-15 23:06:54,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:06:54,400 INFO L225 Difference]: With dead ends: 74 [2019-11-15 23:06:54,400 INFO L226 Difference]: Without dead ends: 72 [2019-11-15 23:06:54,400 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-11-15 23:06:54,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-11-15 23:06:54,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 62. [2019-11-15 23:06:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-15 23:06:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2019-11-15 23:06:54,406 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 20 [2019-11-15 23:06:54,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:06:54,406 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2019-11-15 23:06:54,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:06:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2019-11-15 23:06:54,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-15 23:06:54,407 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:06:54,407 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:06:54,407 INFO L410 AbstractCegarLoop]: === Iteration 8 === [test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:06:54,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:06:54,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1392848752, now seen corresponding path program 1 times [2019-11-15 23:06:54,408 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:06:54,408 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043538391] [2019-11-15 23:06:54,408 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:54,408 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:54,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:06:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:54,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 23:06:54,531 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043538391] [2019-11-15 23:06:54,531 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078398459] [2019-11-15 23:06:54,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:06:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:54,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 23:06:54,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:06:54,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 23:06:54,696 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 23:06:54,696 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2019-11-15 23:06:54,696 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129034114] [2019-11-15 23:06:54,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:06:54,697 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:06:54,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:06:54,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:06:54,698 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 6 states. [2019-11-15 23:06:54,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:06:54,796 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2019-11-15 23:06:54,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:06:54,796 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-15 23:06:54,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:06:54,797 INFO L225 Difference]: With dead ends: 85 [2019-11-15 23:06:54,797 INFO L226 Difference]: Without dead ends: 85 [2019-11-15 23:06:54,798 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-11-15 23:06:54,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-11-15 23:06:54,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2019-11-15 23:06:54,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-15 23:06:54,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2019-11-15 23:06:54,805 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 24 [2019-11-15 23:06:54,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:06:54,805 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2019-11-15 23:06:54,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:06:54,805 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2019-11-15 23:06:54,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-15 23:06:54,806 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:06:54,807 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:06:55,007 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:06:55,007 INFO L410 AbstractCegarLoop]: === Iteration 9 === [test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:06:55,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:06:55,008 INFO L82 PathProgramCache]: Analyzing trace with hash 907973838, now seen corresponding path program 1 times [2019-11-15 23:06:55,008 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:06:55,008 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635395118] [2019-11-15 23:06:55,008 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:55,008 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:55,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:06:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:55,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 23:06:55,127 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635395118] [2019-11-15 23:06:55,127 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259940233] [2019-11-15 23:06:55,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:06:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:55,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 23:06:55,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:06:55,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:06:55,367 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:06:55,367 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2019-11-15 23:06:55,367 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109269530] [2019-11-15 23:06:55,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-15 23:06:55,368 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:06:55,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-15 23:06:55,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2019-11-15 23:06:55,368 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand 15 states. [2019-11-15 23:06:56,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:06:56,047 INFO L93 Difference]: Finished difference Result 106 states and 120 transitions. [2019-11-15 23:06:56,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-15 23:06:56,047 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2019-11-15 23:06:56,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:06:56,049 INFO L225 Difference]: With dead ends: 106 [2019-11-15 23:06:56,049 INFO L226 Difference]: Without dead ends: 106 [2019-11-15 23:06:56,049 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2019-11-15 23:06:56,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-11-15 23:06:56,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 66. [2019-11-15 23:06:56,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-11-15 23:06:56,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2019-11-15 23:06:56,057 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 24 [2019-11-15 23:06:56,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:06:56,057 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2019-11-15 23:06:56,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-15 23:06:56,057 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2019-11-15 23:06:56,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 23:06:56,058 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:06:56,059 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:06:56,262 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:06:56,263 INFO L410 AbstractCegarLoop]: === Iteration 10 === [test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2019-11-15 23:06:56,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:06:56,263 INFO L82 PathProgramCache]: Analyzing trace with hash -678408503, now seen corresponding path program 1 times [2019-11-15 23:06:56,263 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:06:56,263 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018641597] [2019-11-15 23:06:56,263 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:56,263 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:06:56,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:06:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:06:56,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-15 23:06:56,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018641597] [2019-11-15 23:06:56,334 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:06:56,334 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:06:56,334 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520894180] [2019-11-15 23:06:56,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:06:56,335 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:06:56,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:06:56,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:06:56,335 INFO L87 Difference]: Start difference. First operand 66 states and 75 transitions. Second operand 6 states. [2019-11-15 23:06:56,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:06:56,460 INFO L93 Difference]: Finished difference Result 85 states and 98 transitions. [2019-11-15 23:06:56,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:06:56,460 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-11-15 23:06:56,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:06:56,460 INFO L225 Difference]: With dead ends: 85 [2019-11-15 23:06:56,460 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:06:56,461 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:06:56,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:06:56,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:06:56,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:06:56,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:06:56,461 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-11-15 23:06:56,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:06:56,461 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:06:56,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:06:56,462 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:06:56,462 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:06:56,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:06:56 BoogieIcfgContainer [2019-11-15 23:06:56,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:06:56,466 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:06:56,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:06:56,466 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:06:56,467 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:06:50" (3/4) ... [2019-11-15 23:06:56,470 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:06:56,476 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-15 23:06:56,476 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-11-15 23:06:56,476 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test_fun [2019-11-15 23:06:56,476 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-11-15 23:06:56,477 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-11-15 23:06:56,477 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-11-15 23:06:56,477 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-15 23:06:56,477 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-11-15 23:06:56,482 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-15 23:06:56,482 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-15 23:06:56,482 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 23:06:56,526 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fdfb36f6-cb85-4547-b2b2-5a7d77387955/bin/uautomizer/witness.graphml [2019-11-15 23:06:56,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:06:56,527 INFO L168 Benchmark]: Toolchain (without parser) took 6679.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -97.7 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:06:56,528 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:06:56,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:06:56,529 INFO L168 Benchmark]: Boogie Preprocessor took 57.28 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. [2019-11-15 23:06:56,529 INFO L168 Benchmark]: RCFGBuilder took 531.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:06:56,530 INFO L168 Benchmark]: TraceAbstraction took 5490.20 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 47.2 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.5 MB). Peak memory consumption was 49.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:06:56,530 INFO L168 Benchmark]: Witness Printer took 60.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:06:56,532 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 535.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.28 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 531.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5490.20 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 47.2 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.5 MB). Peak memory consumption was 49.7 MB. Max. memory is 11.5 GB. * Witness Printer took 60.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 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: - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 527]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 527]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 539]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 539]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 68 locations, 17 error locations. Result: SAFE, OverallTime: 5.4s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 322 SDtfs, 808 SDslu, 461 SDs, 0 SdLazy, 1386 SolverSat, 89 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 83 SyntacticMatches, 4 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 65 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 24547 SizeOfPredicates, 12 NumberOfNonLiveVariables, 338 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 19/25 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...