./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/array02-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_b787c86d-41c4-49a2-9baf-b8a288341a28/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/array02-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/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 58d4e5463d025a43f4c9f80bcbe28ceb46ed79b1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:30:05,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:30:05,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:30:05,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:30:05,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:30:05,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:30:05,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:30:05,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:30:05,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:30:05,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:30:05,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:30:05,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:30:05,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:30:05,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:30:05,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:30:05,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:30:05,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:30:05,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:30:05,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:30:05,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:30:05,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:30:05,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:30:05,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:30:05,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:30:05,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:30:05,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:30:05,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:30:05,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:30:05,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:30:05,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:30:05,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:30:05,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:30:05,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:30:05,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:30:05,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:30:05,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:30:05,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:30:05,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:30:05,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:30:05,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:30:05,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:30:05,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-15 20:30:05,273 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:30:05,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:30:05,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:30:05,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:30:05,275 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:30:05,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:30:05,275 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:30:05,275 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:30:05,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:30:05,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:30:05,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:30:05,276 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 20:30:05,277 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 20:30:05,277 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-15 20:30:05,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:30:05,277 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:30:05,278 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:30:05,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:30:05,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:30:05,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:30:05,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:30:05,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:30:05,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:30:05,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:30:05,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:30:05,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:30:05,280 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_b787c86d-41c4-49a2-9baf-b8a288341a28/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 -> 58d4e5463d025a43f4c9f80bcbe28ceb46ed79b1 [2019-11-15 20:30:05,305 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:30:05,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:30:05,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:30:05,319 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:30:05,320 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:30:05,320 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/array02-alloca-2.i [2019-11-15 20:30:05,371 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/bin/uautomizer/data/5f4971ac9/18a5a348542a4bdaba6686e5b58d1b62/FLAGe2afb3230 [2019-11-15 20:30:05,855 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:30:05,856 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/sv-benchmarks/c/array-memsafety/array02-alloca-2.i [2019-11-15 20:30:05,872 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/bin/uautomizer/data/5f4971ac9/18a5a348542a4bdaba6686e5b58d1b62/FLAGe2afb3230 [2019-11-15 20:30:05,886 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/bin/uautomizer/data/5f4971ac9/18a5a348542a4bdaba6686e5b58d1b62 [2019-11-15 20:30:05,889 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:30:05,890 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 20:30:05,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:30:05,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:30:05,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:30:05,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:30:05" (1/1) ... [2019-11-15 20:30:05,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a99c76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:05, skipping insertion in model container [2019-11-15 20:30:05,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:30:05" (1/1) ... [2019-11-15 20:30:05,907 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:30:05,957 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:30:06,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:30:06,345 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:30:06,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:30:06,438 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:30:06,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:06 WrapperNode [2019-11-15 20:30:06,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:30:06,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:30:06,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:30:06,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:30:06,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:06" (1/1) ... [2019-11-15 20:30:06,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:06" (1/1) ... [2019-11-15 20:30:06,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:06" (1/1) ... [2019-11-15 20:30:06,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:06" (1/1) ... [2019-11-15 20:30:06,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:06" (1/1) ... [2019-11-15 20:30:06,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:06" (1/1) ... [2019-11-15 20:30:06,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:06" (1/1) ... [2019-11-15 20:30:06,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:30:06,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:30:06,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:30:06,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:30:06,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/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 20:30:06,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 20:30:06,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:30:06,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-15 20:30:06,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-15 20:30:06,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-15 20:30:06,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-15 20:30:06,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-15 20:30:06,557 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2019-11-15 20:30:06,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 20:30:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 20:30:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 20:30:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 20:30:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 20:30:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 20:30:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 20:30:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 20:30:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 20:30:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 20:30:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 20:30:06,561 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 20:30:06,561 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 20:30:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 20:30:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 20:30:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 20:30:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 20:30:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-15 20:30:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-15 20:30:06,563 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-15 20:30:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-15 20:30:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-15 20:30:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 20:30:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 20:30:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 20:30:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 20:30:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 20:30:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 20:30:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 20:30:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 20:30:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 20:30:06,567 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 20:30:06,567 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 20:30:06,567 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 20:30:06,568 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 20:30:06,568 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 20:30:06,568 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 20:30:06,568 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 20:30:06,568 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 20:30:06,568 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 20:30:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 20:30:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 20:30:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 20:30:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 20:30:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 20:30:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 20:30:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 20:30:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 20:30:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 20:30:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 20:30:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 20:30:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 20:30:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 20:30:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 20:30:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 20:30:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 20:30:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 20:30:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 20:30:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 20:30:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 20:30:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 20:30:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 20:30:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 20:30:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 20:30:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 20:30:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 20:30:06,575 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 20:30:06,575 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 20:30:06,576 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 20:30:06,577 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 20:30:06,577 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 20:30:06,577 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 20:30:06,577 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 20:30:06,578 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 20:30:06,578 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 20:30:06,579 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 20:30:06,579 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 20:30:06,579 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 20:30:06,579 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 20:30:06,579 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 20:30:06,579 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 20:30:06,579 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 20:30:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 20:30:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 20:30:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 20:30:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 20:30:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 20:30:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 20:30:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 20:30:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 20:30:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 20:30:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 20:30:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 20:30:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 20:30:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 20:30:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 20:30:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 20:30:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 20:30:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 20:30:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 20:30:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 20:30:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 20:30:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 20:30:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 20:30:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 20:30:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 20:30:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 20:30:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 20:30:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-15 20:30:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2019-11-15 20:30:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:30:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:30:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 20:30:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:30:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:30:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 20:30:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:30:07,111 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:30:07,111 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-15 20:30:07,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:30:07 BoogieIcfgContainer [2019-11-15 20:30:07,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:30:07,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:30:07,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:30:07,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:30:07,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:30:05" (1/3) ... [2019-11-15 20:30:07,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c6860f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:30:07, skipping insertion in model container [2019-11-15 20:30:07,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:06" (2/3) ... [2019-11-15 20:30:07,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c6860f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:30:07, skipping insertion in model container [2019-11-15 20:30:07,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:30:07" (3/3) ... [2019-11-15 20:30:07,120 INFO L109 eAbstractionObserver]: Analyzing ICFG array02-alloca-2.i [2019-11-15 20:30:07,128 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:30:07,134 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2019-11-15 20:30:07,141 INFO L249 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2019-11-15 20:30:07,156 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:30:07,156 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 20:30:07,156 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:30:07,156 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:30:07,156 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:30:07,156 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:30:07,157 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:30:07,157 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:30:07,169 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-11-15 20:30:07,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 20:30:07,177 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:30:07,178 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:07,179 INFO L410 AbstractCegarLoop]: === Iteration 1 === [test_funErr7REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 20:30:07,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:07,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1238894780, now seen corresponding path program 1 times [2019-11-15 20:30:07,189 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:07,189 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713278619] [2019-11-15 20:30:07,189 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:07,189 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:07,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:30:07,365 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713278619] [2019-11-15 20:30:07,366 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:30:07,366 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:30:07,366 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071436412] [2019-11-15 20:30:07,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:30:07,370 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:30:07,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:30:07,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:30:07,385 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 4 states. [2019-11-15 20:30:07,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:30:07,539 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2019-11-15 20:30:07,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 20:30:07,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-15 20:30:07,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:30:07,549 INFO L225 Difference]: With dead ends: 49 [2019-11-15 20:30:07,550 INFO L226 Difference]: Without dead ends: 46 [2019-11-15 20:30:07,551 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 20:30:07,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-15 20:30:07,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-11-15 20:30:07,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-15 20:30:07,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2019-11-15 20:30:07,585 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 10 [2019-11-15 20:30:07,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:30:07,585 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2019-11-15 20:30:07,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:30:07,586 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2019-11-15 20:30:07,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 20:30:07,586 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:30:07,586 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:07,587 INFO L410 AbstractCegarLoop]: === Iteration 2 === [test_funErr7REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 20:30:07,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:07,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1238894779, now seen corresponding path program 1 times [2019-11-15 20:30:07,587 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:07,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49196802] [2019-11-15 20:30:07,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:07,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:07,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:07,695 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 20:30:07,695 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49196802] [2019-11-15 20:30:07,696 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:30:07,696 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:30:07,699 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840777888] [2019-11-15 20:30:07,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 20:30:07,701 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:30:07,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:30:07,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:30:07,703 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 6 states. [2019-11-15 20:30:07,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:30:07,890 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2019-11-15 20:30:07,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:30:07,890 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-15 20:30:07,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:30:07,891 INFO L225 Difference]: With dead ends: 50 [2019-11-15 20:30:07,891 INFO L226 Difference]: Without dead ends: 50 [2019-11-15 20:30:07,892 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 20:30:07,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-15 20:30:07,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2019-11-15 20:30:07,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-15 20:30:07,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2019-11-15 20:30:07,898 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 10 [2019-11-15 20:30:07,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:30:07,898 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2019-11-15 20:30:07,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 20:30:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2019-11-15 20:30:07,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 20:30:07,899 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:30:07,899 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:07,900 INFO L410 AbstractCegarLoop]: === Iteration 3 === [test_funErr7REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 20:30:07,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:07,900 INFO L82 PathProgramCache]: Analyzing trace with hash -418294904, now seen corresponding path program 1 times [2019-11-15 20:30:07,900 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:07,900 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710997698] [2019-11-15 20:30:07,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:07,901 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:07,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:07,999 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 20:30:08,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710997698] [2019-11-15 20:30:08,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579972254] [2019-11-15 20:30:08,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/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 20:30:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:08,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 20:30:08,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:30:08,184 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 20:30:08,185 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 20:30:08,185 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2019-11-15 20:30:08,185 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696168058] [2019-11-15 20:30:08,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:30:08,186 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:30:08,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:30:08,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:30:08,187 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 5 states. [2019-11-15 20:30:08,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:30:08,239 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2019-11-15 20:30:08,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:30:08,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-15 20:30:08,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:30:08,242 INFO L225 Difference]: With dead ends: 58 [2019-11-15 20:30:08,242 INFO L226 Difference]: Without dead ends: 58 [2019-11-15 20:30:08,243 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:30:08,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-15 20:30:08,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2019-11-15 20:30:08,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-15 20:30:08,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2019-11-15 20:30:08,254 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 14 [2019-11-15 20:30:08,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:30:08,255 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2019-11-15 20:30:08,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:30:08,255 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2019-11-15 20:30:08,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 20:30:08,256 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:30:08,256 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:08,468 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:30:08,469 INFO L410 AbstractCegarLoop]: === Iteration 4 === [test_funErr7REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 20:30:08,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:08,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1227641530, now seen corresponding path program 1 times [2019-11-15 20:30:08,470 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:08,470 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745766631] [2019-11-15 20:30:08,470 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:08,470 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:08,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:08,627 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 20:30:08,627 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745766631] [2019-11-15 20:30:08,628 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644102123] [2019-11-15 20:30:08,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/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 20:30:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:08,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 20:30:08,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:30:08,838 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 20:30:08,838 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:30:08,852 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:30:08,853 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-15 20:30:08,853 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-11-15 20:30:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:30:08,910 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 20:30:08,910 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2019-11-15 20:30:08,911 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250955669] [2019-11-15 20:30:08,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 20:30:08,911 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:30:08,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 20:30:08,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:30:08,912 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 8 states. [2019-11-15 20:30:09,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:30:09,179 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2019-11-15 20:30:09,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:30:09,180 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-15 20:30:09,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:30:09,181 INFO L225 Difference]: With dead ends: 55 [2019-11-15 20:30:09,181 INFO L226 Difference]: Without dead ends: 55 [2019-11-15 20:30:09,182 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 20:30:09,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-15 20:30:09,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2019-11-15 20:30:09,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-15 20:30:09,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2019-11-15 20:30:09,188 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 14 [2019-11-15 20:30:09,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:30:09,191 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2019-11-15 20:30:09,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 20:30:09,191 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2019-11-15 20:30:09,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 20:30:09,193 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:30:09,193 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 20:30:09,394 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:30:09,394 INFO L410 AbstractCegarLoop]: === Iteration 5 === [test_funErr7REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 20:30:09,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:09,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1722871528, now seen corresponding path program 1 times [2019-11-15 20:30:09,395 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:09,395 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485492345] [2019-11-15 20:30:09,395 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:09,395 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:09,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:09,483 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 20:30:09,484 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485492345] [2019-11-15 20:30:09,484 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:30:09,484 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:30:09,499 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46628474] [2019-11-15 20:30:09,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 20:30:09,500 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:30:09,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:30:09,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:30:09,501 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 6 states. [2019-11-15 20:30:09,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:30:09,712 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-15 20:30:09,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:30:09,712 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-15 20:30:09,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:30:09,713 INFO L225 Difference]: With dead ends: 46 [2019-11-15 20:30:09,713 INFO L226 Difference]: Without dead ends: 46 [2019-11-15 20:30:09,714 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 20:30:09,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-15 20:30:09,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-11-15 20:30:09,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-15 20:30:09,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2019-11-15 20:30:09,719 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 17 [2019-11-15 20:30:09,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:30:09,719 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2019-11-15 20:30:09,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 20:30:09,720 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2019-11-15 20:30:09,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 20:30:09,721 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:30:09,721 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 20:30:09,721 INFO L410 AbstractCegarLoop]: === Iteration 6 === [test_funErr7REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 20:30:09,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:09,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1722871527, now seen corresponding path program 1 times [2019-11-15 20:30:09,722 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:09,722 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231954426] [2019-11-15 20:30:09,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:09,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:09,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:09,862 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 20:30:09,862 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231954426] [2019-11-15 20:30:09,862 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:30:09,863 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 20:30:09,863 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089682197] [2019-11-15 20:30:09,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 20:30:09,863 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:30:09,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 20:30:09,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 20:30:09,864 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 7 states. [2019-11-15 20:30:10,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:30:10,138 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2019-11-15 20:30:10,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 20:30:10,139 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-15 20:30:10,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:30:10,141 INFO L225 Difference]: With dead ends: 62 [2019-11-15 20:30:10,141 INFO L226 Difference]: Without dead ends: 62 [2019-11-15 20:30:10,142 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 20:30:10,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-15 20:30:10,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2019-11-15 20:30:10,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-15 20:30:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2019-11-15 20:30:10,147 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 17 [2019-11-15 20:30:10,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:30:10,147 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2019-11-15 20:30:10,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 20:30:10,148 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2019-11-15 20:30:10,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-15 20:30:10,148 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:30:10,149 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 20:30:10,149 INFO L410 AbstractCegarLoop]: === Iteration 7 === [test_funErr7REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 20:30:10,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:10,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1206938652, now seen corresponding path program 1 times [2019-11-15 20:30:10,149 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:10,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630530429] [2019-11-15 20:30:10,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:10,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:10,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:10,256 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 20:30:10,256 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630530429] [2019-11-15 20:30:10,256 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:30:10,256 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 20:30:10,256 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711840218] [2019-11-15 20:30:10,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 20:30:10,257 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:30:10,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 20:30:10,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 20:30:10,258 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 7 states. [2019-11-15 20:30:10,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:30:10,529 INFO L93 Difference]: Finished difference Result 94 states and 105 transitions. [2019-11-15 20:30:10,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 20:30:10,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-11-15 20:30:10,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:30:10,531 INFO L225 Difference]: With dead ends: 94 [2019-11-15 20:30:10,531 INFO L226 Difference]: Without dead ends: 92 [2019-11-15 20:30:10,532 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 20:30:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-15 20:30:10,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 59. [2019-11-15 20:30:10,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-15 20:30:10,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2019-11-15 20:30:10,537 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 20 [2019-11-15 20:30:10,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:30:10,537 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2019-11-15 20:30:10,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 20:30:10,537 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2019-11-15 20:30:10,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-15 20:30:10,538 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:30:10,538 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] [2019-11-15 20:30:10,539 INFO L410 AbstractCegarLoop]: === Iteration 8 === [test_funErr7REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 20:30:10,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:10,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1783576675, now seen corresponding path program 1 times [2019-11-15 20:30:10,539 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:10,539 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969819440] [2019-11-15 20:30:10,539 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:10,539 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:10,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:10,674 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 20:30:10,675 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969819440] [2019-11-15 20:30:10,675 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691646830] [2019-11-15 20:30:10,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/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 20:30:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:10,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 20:30:10,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:30:10,858 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 20:30:10,858 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 20:30:10,859 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2019-11-15 20:30:10,859 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166829709] [2019-11-15 20:30:10,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 20:30:10,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:30:10,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:30:10,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-15 20:30:10,860 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand 6 states. [2019-11-15 20:30:10,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:30:10,937 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2019-11-15 20:30:10,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:30:10,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2019-11-15 20:30:10,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:30:10,939 INFO L225 Difference]: With dead ends: 81 [2019-11-15 20:30:10,939 INFO L226 Difference]: Without dead ends: 81 [2019-11-15 20:30:10,939 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 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 20:30:10,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-11-15 20:30:10,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2019-11-15 20:30:10,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-15 20:30:10,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2019-11-15 20:30:10,945 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 23 [2019-11-15 20:30:10,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:30:10,945 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2019-11-15 20:30:10,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 20:30:10,945 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2019-11-15 20:30:10,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-15 20:30:10,946 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:30:10,946 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] [2019-11-15 20:30:11,149 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:30:11,150 INFO L410 AbstractCegarLoop]: === Iteration 9 === [test_funErr7REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 20:30:11,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:11,150 INFO L82 PathProgramCache]: Analyzing trace with hash 923042719, now seen corresponding path program 1 times [2019-11-15 20:30:11,150 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:11,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774945177] [2019-11-15 20:30:11,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:11,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:11,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:11,298 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 20:30:11,298 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774945177] [2019-11-15 20:30:11,298 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887922435] [2019-11-15 20:30:11,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/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 20:30:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:11,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 20:30:11,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:30:11,546 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 20:30:11,547 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 20:30:11,547 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2019-11-15 20:30:11,547 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649912107] [2019-11-15 20:30:11,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-15 20:30:11,547 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:30:11,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-15 20:30:11,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2019-11-15 20:30:11,548 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand 15 states. [2019-11-15 20:30:12,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:30:12,280 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2019-11-15 20:30:12,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-15 20:30:12,281 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 23 [2019-11-15 20:30:12,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:30:12,282 INFO L225 Difference]: With dead ends: 102 [2019-11-15 20:30:12,282 INFO L226 Difference]: Without dead ends: 102 [2019-11-15 20:30:12,283 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 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 20:30:12,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-15 20:30:12,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 64. [2019-11-15 20:30:12,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-11-15 20:30:12,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2019-11-15 20:30:12,289 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 23 [2019-11-15 20:30:12,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:30:12,289 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2019-11-15 20:30:12,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-15 20:30:12,290 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2019-11-15 20:30:12,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 20:30:12,291 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:30:12,291 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:12,496 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:30:12,496 INFO L410 AbstractCegarLoop]: === Iteration 10 === [test_funErr7REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-15 20:30:12,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:12,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1492771104, now seen corresponding path program 1 times [2019-11-15 20:30:12,497 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:12,497 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553679097] [2019-11-15 20:30:12,497 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:12,497 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:12,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:12,564 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 20:30:12,565 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553679097] [2019-11-15 20:30:12,565 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:30:12,565 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:30:12,565 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676042411] [2019-11-15 20:30:12,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 20:30:12,566 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:30:12,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:30:12,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:30:12,566 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand 6 states. [2019-11-15 20:30:12,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:30:12,677 INFO L93 Difference]: Finished difference Result 91 states and 103 transitions. [2019-11-15 20:30:12,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 20:30:12,678 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-11-15 20:30:12,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:30:12,678 INFO L225 Difference]: With dead ends: 91 [2019-11-15 20:30:12,678 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:30:12,678 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 20:30:12,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:30:12,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:30:12,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:30:12,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:30:12,679 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-11-15 20:30:12,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:30:12,679 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:30:12,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 20:30:12,679 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:30:12,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:30:12,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:30:12 BoogieIcfgContainer [2019-11-15 20:30:12,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:30:12,684 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:30:12,684 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:30:12,684 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:30:12,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:30:07" (3/4) ... [2019-11-15 20:30:12,687 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 20:30:12,692 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-15 20:30:12,692 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-11-15 20:30:12,692 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test_fun [2019-11-15 20:30:12,692 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-11-15 20:30:12,692 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-11-15 20:30:12,693 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-11-15 20:30:12,693 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-15 20:30:12,693 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-11-15 20:30:12,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-15 20:30:12,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-15 20:30:12,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 20:30:12,746 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b787c86d-41c4-49a2-9baf-b8a288341a28/bin/uautomizer/witness.graphml [2019-11-15 20:30:12,747 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:30:12,748 INFO L168 Benchmark]: Toolchain (without parser) took 6857.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -115.7 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:30:12,748 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:30:12,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:30:12,749 INFO L168 Benchmark]: Boogie Preprocessor took 61.93 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 20:30:12,750 INFO L168 Benchmark]: RCFGBuilder took 611.71 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: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:30:12,751 INFO L168 Benchmark]: TraceAbstraction took 5569.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -3.4 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:30:12,751 INFO L168 Benchmark]: Witness Printer took 62.79 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: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:30:12,753 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 547.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.93 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 611.71 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: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5569.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -3.4 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. * Witness Printer took 62.79 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: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 522]: 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: 519]: 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: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: 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: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: 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: 537]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 537]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 65 locations, 15 error locations. Result: SAFE, OverallTime: 5.5s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 303 SDtfs, 796 SDslu, 418 SDs, 0 SdLazy, 1223 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 81 SyntacticMatches, 4 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 86 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 234 ConstructedInterpolants, 0 QuantifiedInterpolants, 22850 SizeOfPredicates, 12 NumberOfNonLiveVariables, 322 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...