./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/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 9b3e50b8f852fe8799cb6ad900b216b16bf216ae ............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/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 9b3e50b8f852fe8799cb6ad900b216b16bf216ae ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 20:20:20,442 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 20:20:20,444 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 20:20:20,451 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 20:20:20,451 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 20:20:20,452 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 20:20:20,453 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 20:20:20,454 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 20:20:20,455 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 20:20:20,456 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 20:20:20,456 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 20:20:20,456 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 20:20:20,457 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 20:20:20,458 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 20:20:20,458 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 20:20:20,458 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 20:20:20,459 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 20:20:20,460 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 20:20:20,460 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 20:20:20,461 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 20:20:20,462 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 20:20:20,463 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 20:20:20,464 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 20:20:20,464 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 20:20:20,464 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 20:20:20,465 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 20:20:20,465 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 20:20:20,466 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 20:20:20,466 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 20:20:20,467 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 20:20:20,467 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 20:20:20,468 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 20:20:20,468 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 20:20:20,468 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 20:20:20,468 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 20:20:20,469 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 20:20:20,469 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-08 20:20:20,478 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 20:20:20,479 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 20:20:20,479 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 20:20:20,479 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 20:20:20,480 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 20:20:20,480 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 20:20:20,480 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 20:20:20,480 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 20:20:20,481 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 20:20:20,481 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 20:20:20,481 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 20:20:20,481 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 20:20:20,481 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 20:20:20,481 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 20:20:20,481 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 20:20:20,482 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 20:20:20,482 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 20:20:20,482 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 20:20:20,482 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 20:20:20,482 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 20:20:20,482 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 20:20:20,483 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 20:20:20,483 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 20:20:20,483 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 20:20:20,483 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 20:20:20,483 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 20:20:20,483 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 20:20:20,483 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 20:20:20,484 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/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 -> 9b3e50b8f852fe8799cb6ad900b216b16bf216ae [2018-12-08 20:20:20,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 20:20:20,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 20:20:20,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 20:20:20,513 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 20:20:20,514 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 20:20:20,514 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-08 20:20:20,549 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/data/483101342/b42b0df373e04d07b0388bec19ac91a9/FLAG276787e37 [2018-12-08 20:20:20,904 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 20:20:20,905 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-08 20:20:20,911 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/data/483101342/b42b0df373e04d07b0388bec19ac91a9/FLAG276787e37 [2018-12-08 20:20:21,292 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/data/483101342/b42b0df373e04d07b0388bec19ac91a9 [2018-12-08 20:20:21,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 20:20:21,297 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-08 20:20:21,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 20:20:21,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 20:20:21,300 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 20:20:21,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:20:21" (1/1) ... [2018-12-08 20:20:21,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26534fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:21, skipping insertion in model container [2018-12-08 20:20:21,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:20:21" (1/1) ... [2018-12-08 20:20:21,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 20:20:21,329 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 20:20:21,482 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:20:21,486 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 20:20:21,540 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:20:21,567 INFO L195 MainTranslator]: Completed translation [2018-12-08 20:20:21,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:21 WrapperNode [2018-12-08 20:20:21,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 20:20:21,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 20:20:21,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 20:20:21,569 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 20:20:21,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:21" (1/1) ... [2018-12-08 20:20:21,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:21" (1/1) ... [2018-12-08 20:20:21,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:21" (1/1) ... [2018-12-08 20:20:21,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:21" (1/1) ... [2018-12-08 20:20:21,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:21" (1/1) ... [2018-12-08 20:20:21,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:21" (1/1) ... [2018-12-08 20:20:21,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:21" (1/1) ... [2018-12-08 20:20:21,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 20:20:21,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 20:20:21,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 20:20:21,597 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 20:20:21,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/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 [2018-12-08 20:20:21,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 20:20:21,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 20:20:21,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 20:20:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-08 20:20:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-08 20:20:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-08 20:20:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-08 20:20:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-08 20:20:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-08 20:20:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-08 20:20:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-08 20:20:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-08 20:20:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 20:20:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 20:20:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 20:20:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 20:20:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 20:20:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 20:20:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 20:20:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 20:20:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 20:20:21,800 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 20:20:21,800 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 20:20:21,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:20:21 BoogieIcfgContainer [2018-12-08 20:20:21,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 20:20:21,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 20:20:21,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 20:20:21,803 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 20:20:21,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:20:21" (1/3) ... [2018-12-08 20:20:21,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b8d3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:20:21, skipping insertion in model container [2018-12-08 20:20:21,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:21" (2/3) ... [2018-12-08 20:20:21,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b8d3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:20:21, skipping insertion in model container [2018-12-08 20:20:21,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:20:21" (3/3) ... [2018-12-08 20:20:21,805 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-12-08 20:20:21,813 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 20:20:21,818 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-12-08 20:20:21,830 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-12-08 20:20:21,845 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 20:20:21,845 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 20:20:21,845 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 20:20:21,845 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 20:20:21,846 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 20:20:21,846 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 20:20:21,846 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 20:20:21,846 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 20:20:21,846 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 20:20:21,854 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-08 20:20:21,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 20:20:21,859 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:21,859 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:21,861 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-08 20:20:21,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:21,864 INFO L82 PathProgramCache]: Analyzing trace with hash 539516245, now seen corresponding path program 1 times [2018-12-08 20:20:21,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 20:20:21,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 20:20:21,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:20:21,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:21,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:20:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:20:21,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:20:21,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:20:21,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 20:20:21,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 20:20:21,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 20:20:21,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:20:21,981 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-12-08 20:20:22,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:20:22,009 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-08 20:20:22,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 20:20:22,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 20:20:22,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:20:22,015 INFO L225 Difference]: With dead ends: 18 [2018-12-08 20:20:22,015 INFO L226 Difference]: Without dead ends: 15 [2018-12-08 20:20:22,016 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:20:22,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-08 20:20:22,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-08 20:20:22,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-08 20:20:22,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-12-08 20:20:22,035 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-12-08 20:20:22,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:20:22,035 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-12-08 20:20:22,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 20:20:22,035 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-12-08 20:20:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 20:20:22,035 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:22,035 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:22,036 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-08 20:20:22,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:22,036 INFO L82 PathProgramCache]: Analyzing trace with hash 539516246, now seen corresponding path program 1 times [2018-12-08 20:20:22,036 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 20:20:22,036 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 20:20:22,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:20:22,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:22,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:20:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:20:22,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:20:22,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:20:22,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 20:20:22,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 20:20:22,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 20:20:22,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:20:22,073 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 3 states. [2018-12-08 20:20:22,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:20:22,083 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-08 20:20:22,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 20:20:22,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 20:20:22,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:20:22,084 INFO L225 Difference]: With dead ends: 12 [2018-12-08 20:20:22,084 INFO L226 Difference]: Without dead ends: 12 [2018-12-08 20:20:22,085 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:20:22,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-08 20:20:22,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-08 20:20:22,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-08 20:20:22,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-12-08 20:20:22,086 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-12-08 20:20:22,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:20:22,086 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-12-08 20:20:22,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 20:20:22,086 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-12-08 20:20:22,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 20:20:22,087 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:22,087 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:22,087 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-08 20:20:22,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:22,087 INFO L82 PathProgramCache]: Analyzing trace with hash -279678759, now seen corresponding path program 1 times [2018-12-08 20:20:22,087 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 20:20:22,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 20:20:22,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:20:22,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:22,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:20:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 20:20:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 20:20:22,130 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 20:20:22,138 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 20:20:22,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:20:22 BoogieIcfgContainer [2018-12-08 20:20:22,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 20:20:22,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 20:20:22,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 20:20:22,144 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 20:20:22,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:20:21" (3/4) ... [2018-12-08 20:20:22,147 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 20:20:22,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 20:20:22,147 INFO L168 Benchmark]: Toolchain (without parser) took 850.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 950.6 MB in the beginning and 1.0 GB in the end (delta: -73.8 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:22,148 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 20:20:22,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:22,149 INFO L168 Benchmark]: Boogie Preprocessor took 28.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:22,149 INFO L168 Benchmark]: RCFGBuilder took 204.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:22,150 INFO L168 Benchmark]: TraceAbstraction took 342.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:22,150 INFO L168 Benchmark]: Witness Printer took 2.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 20:20:22,152 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 204.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 342.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 619]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 619. Possible FailurePath: [L621-L628] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L629] data.p0 = malloc(37U) VAL [data={39:0}, malloc(37U)={40:0}] [L630] data.str.p2 = &data VAL [data={39:0}, malloc(37U)={40:0}] [L631] data.str.c[1] = sizeof data.str.p1 VAL [data={39:0}, malloc(37U)={40:0}] [L632] return 0; [L632] return 0; VAL [\result=0, malloc(37U)={40:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 7 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 16 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 20:20:23,409 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 20:20:23,409 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 20:20:23,415 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 20:20:23,416 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 20:20:23,416 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 20:20:23,417 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 20:20:23,418 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 20:20:23,418 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 20:20:23,419 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 20:20:23,419 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 20:20:23,419 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 20:20:23,420 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 20:20:23,420 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 20:20:23,421 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 20:20:23,421 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 20:20:23,422 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 20:20:23,422 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 20:20:23,423 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 20:20:23,424 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 20:20:23,425 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 20:20:23,425 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 20:20:23,426 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 20:20:23,427 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 20:20:23,427 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 20:20:23,427 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 20:20:23,428 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 20:20:23,428 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 20:20:23,428 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 20:20:23,429 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 20:20:23,429 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 20:20:23,429 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 20:20:23,429 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 20:20:23,430 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 20:20:23,430 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 20:20:23,430 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 20:20:23,431 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-12-08 20:20:23,438 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 20:20:23,438 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 20:20:23,438 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 20:20:23,438 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 20:20:23,439 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 20:20:23,439 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 20:20:23,439 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 20:20:23,439 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 20:20:23,439 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 20:20:23,439 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 20:20:23,439 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 20:20:23,439 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 20:20:23,439 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 20:20:23,439 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 20:20:23,440 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 20:20:23,440 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 20:20:23,440 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 20:20:23,440 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 20:20:23,440 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 20:20:23,440 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 20:20:23,440 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 20:20:23,440 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 20:20:23,440 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 20:20:23,440 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 20:20:23,440 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 20:20:23,440 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 20:20:23,441 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 20:20:23,441 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 20:20:23,441 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 20:20:23,441 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 20:20:23,441 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 20:20:23,441 INFO L133 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/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 -> 9b3e50b8f852fe8799cb6ad900b216b16bf216ae [2018-12-08 20:20:23,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 20:20:23,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 20:20:23,471 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 20:20:23,473 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 20:20:23,473 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 20:20:23,473 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-08 20:20:23,513 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/data/75adc78a5/c5f64a9ca8cc4c79a05855ce5d35317d/FLAGecc5a3458 [2018-12-08 20:20:23,937 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 20:20:23,938 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-08 20:20:23,944 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/data/75adc78a5/c5f64a9ca8cc4c79a05855ce5d35317d/FLAGecc5a3458 [2018-12-08 20:20:23,952 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/data/75adc78a5/c5f64a9ca8cc4c79a05855ce5d35317d [2018-12-08 20:20:23,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 20:20:23,954 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-08 20:20:23,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 20:20:23,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 20:20:23,957 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 20:20:23,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:20:23" (1/1) ... [2018-12-08 20:20:23,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f320ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:23, skipping insertion in model container [2018-12-08 20:20:23,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:20:23" (1/1) ... [2018-12-08 20:20:23,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 20:20:23,982 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 20:20:24,123 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:20:24,129 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 20:20:24,154 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:20:24,181 INFO L195 MainTranslator]: Completed translation [2018-12-08 20:20:24,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:24 WrapperNode [2018-12-08 20:20:24,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 20:20:24,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 20:20:24,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 20:20:24,182 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 20:20:24,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:24" (1/1) ... [2018-12-08 20:20:24,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:24" (1/1) ... [2018-12-08 20:20:24,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:24" (1/1) ... [2018-12-08 20:20:24,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:24" (1/1) ... [2018-12-08 20:20:24,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:24" (1/1) ... [2018-12-08 20:20:24,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:24" (1/1) ... [2018-12-08 20:20:24,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:24" (1/1) ... [2018-12-08 20:20:24,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 20:20:24,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 20:20:24,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 20:20:24,241 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 20:20:24,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/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 [2018-12-08 20:20:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 20:20:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 20:20:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 20:20:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-08 20:20:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-08 20:20:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-08 20:20:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-08 20:20:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-08 20:20:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-08 20:20:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-08 20:20:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-08 20:20:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-08 20:20:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-08 20:20:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-08 20:20:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-08 20:20:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-08 20:20:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-08 20:20:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-08 20:20:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-08 20:20:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-08 20:20:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-08 20:20:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-08 20:20:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-08 20:20:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-08 20:20:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-08 20:20:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-08 20:20:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-08 20:20:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-08 20:20:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-08 20:20:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-08 20:20:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-08 20:20:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-08 20:20:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-08 20:20:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-08 20:20:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-08 20:20:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-08 20:20:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-08 20:20:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-08 20:20:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-08 20:20:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-08 20:20:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-08 20:20:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-08 20:20:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-08 20:20:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-08 20:20:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-08 20:20:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-08 20:20:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-08 20:20:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-08 20:20:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-08 20:20:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-08 20:20:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-08 20:20:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-08 20:20:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-08 20:20:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-08 20:20:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-08 20:20:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-08 20:20:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-08 20:20:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-08 20:20:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-08 20:20:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-08 20:20:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-08 20:20:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-08 20:20:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-08 20:20:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-08 20:20:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-08 20:20:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-08 20:20:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-08 20:20:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-08 20:20:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-08 20:20:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-08 20:20:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-08 20:20:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-08 20:20:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-08 20:20:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-08 20:20:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-08 20:20:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-08 20:20:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-08 20:20:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-08 20:20:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-08 20:20:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-08 20:20:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-08 20:20:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-08 20:20:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-08 20:20:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-08 20:20:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-08 20:20:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-08 20:20:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-08 20:20:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-08 20:20:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-08 20:20:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-08 20:20:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-08 20:20:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 20:20:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 20:20:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 20:20:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-12-08 20:20:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 20:20:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 20:20:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 20:20:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 20:20:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-12-08 20:20:24,483 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 20:20:24,483 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 20:20:24,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:20:24 BoogieIcfgContainer [2018-12-08 20:20:24,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 20:20:24,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 20:20:24,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 20:20:24,486 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 20:20:24,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:20:23" (1/3) ... [2018-12-08 20:20:24,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3997f027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:20:24, skipping insertion in model container [2018-12-08 20:20:24,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:24" (2/3) ... [2018-12-08 20:20:24,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3997f027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:20:24, skipping insertion in model container [2018-12-08 20:20:24,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:20:24" (3/3) ... [2018-12-08 20:20:24,488 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-12-08 20:20:24,494 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 20:20:24,498 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-12-08 20:20:24,507 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-12-08 20:20:24,521 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 20:20:24,521 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 20:20:24,521 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 20:20:24,521 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 20:20:24,521 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 20:20:24,521 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 20:20:24,521 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 20:20:24,521 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 20:20:24,521 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 20:20:24,529 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-08 20:20:24,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 20:20:24,533 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:24,534 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:24,535 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION]=== [2018-12-08 20:20:24,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:24,538 INFO L82 PathProgramCache]: Analyzing trace with hash 539516245, now seen corresponding path program 1 times [2018-12-08 20:20:24,540 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 20:20:24,541 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 20:20:24,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:20:24,582 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 20:20:24,621 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 20:20:24,624 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-12-08 20:20:24,628 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-12-08 20:20:24,629 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 20:20:24,634 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 20:20:24,640 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 20:20:24,640 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2018-12-08 20:20:24,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:20:24,651 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 20:20:24,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:20:24,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 20:20:24,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 20:20:24,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 20:20:24,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:20:24,665 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-12-08 20:20:24,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:20:24,713 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-08 20:20:24,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 20:20:24,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 20:20:24,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:20:24,719 INFO L225 Difference]: With dead ends: 18 [2018-12-08 20:20:24,719 INFO L226 Difference]: Without dead ends: 15 [2018-12-08 20:20:24,720 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:20:24,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-08 20:20:24,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-08 20:20:24,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-08 20:20:24,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-12-08 20:20:24,740 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-12-08 20:20:24,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:20:24,740 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-12-08 20:20:24,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 20:20:24,740 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-12-08 20:20:24,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 20:20:24,740 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:24,740 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:24,741 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION]=== [2018-12-08 20:20:24,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:24,741 INFO L82 PathProgramCache]: Analyzing trace with hash 539516246, now seen corresponding path program 1 times [2018-12-08 20:20:24,741 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 20:20:24,741 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 20:20:24,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:20:24,772 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 20:20:24,788 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-08 20:20:24,792 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 20:20:24,793 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-08 20:20:24,793 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 20:20:24,800 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 20:20:24,813 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-08 20:20:24,813 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 20:20:24,820 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 20:20:24,820 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2018-12-08 20:20:24,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:20:24,829 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 20:20:24,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:20:24,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 20:20:24,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 20:20:24,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 20:20:24,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:20:24,831 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 3 states. [2018-12-08 20:20:24,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:20:24,855 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-08 20:20:24,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 20:20:24,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 20:20:24,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:20:24,856 INFO L225 Difference]: With dead ends: 12 [2018-12-08 20:20:24,856 INFO L226 Difference]: Without dead ends: 12 [2018-12-08 20:20:24,857 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:20:24,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-08 20:20:24,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-08 20:20:24,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-08 20:20:24,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-12-08 20:20:24,858 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-12-08 20:20:24,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:20:24,858 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-12-08 20:20:24,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 20:20:24,858 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-12-08 20:20:24,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 20:20:24,859 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:24,859 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:24,859 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION]=== [2018-12-08 20:20:24,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:24,859 INFO L82 PathProgramCache]: Analyzing trace with hash -279678759, now seen corresponding path program 1 times [2018-12-08 20:20:24,859 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 20:20:24,860 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f401f95c-d00b-4456-aa39-f146455bda59/bin-2019/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 20:20:24,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 20:20:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 20:20:24,956 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 20:20:24,963 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 20:20:24,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:20:24 BoogieIcfgContainer [2018-12-08 20:20:24,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 20:20:24,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 20:20:24,970 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 20:20:24,971 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 20:20:24,971 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:20:24" (3/4) ... [2018-12-08 20:20:24,973 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 20:20:24,973 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 20:20:24,974 INFO L168 Benchmark]: Toolchain (without parser) took 1020.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -68.4 MB). Peak memory consumption was 69.0 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:24,975 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 20:20:24,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.55 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 916.5 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:24,975 INFO L168 Benchmark]: Boogie Preprocessor took 59.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -208.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:24,976 INFO L168 Benchmark]: RCFGBuilder took 242.63 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: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:24,976 INFO L168 Benchmark]: TraceAbstraction took 485.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:24,976 INFO L168 Benchmark]: Witness Printer took 3.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 20:20:24,978 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.55 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 916.5 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -208.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 242.63 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: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 485.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 619]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 619. Possible FailurePath: [L621-L628] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L629] data.p0 = malloc(37U) VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L630] data.str.p2 = &data VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L631] data.str.c[1] = sizeof data.str.p1 VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L632] return 0; [L632] return 0; VAL [\result=0, malloc(37U)={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 7 error locations. UNSAFE Result, 0.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 16 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 2 QuantifiedInterpolants, 288 SizeOfPredicates, 2 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...