./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/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 3e29a7fa8491bc0edf7e32b974ff0e341ea18209 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/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 3e29a7fa8491bc0edf7e32b974ff0e341ea18209 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:34:10,001 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:34:10,002 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:34:10,011 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:34:10,011 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:34:10,012 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:34:10,013 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:34:10,014 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:34:10,015 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:34:10,016 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:34:10,016 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:34:10,016 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:34:10,017 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:34:10,018 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:34:10,019 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:34:10,019 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:34:10,020 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:34:10,021 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:34:10,022 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:34:10,023 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:34:10,024 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:34:10,025 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:34:10,027 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:34:10,027 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:34:10,027 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:34:10,028 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:34:10,029 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:34:10,029 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:34:10,030 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:34:10,030 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:34:10,031 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:34:10,031 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:34:10,031 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:34:10,031 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:34:10,032 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:34:10,032 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:34:10,033 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 13:34:10,042 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:34:10,042 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:34:10,043 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:34:10,043 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:34:10,044 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:34:10,044 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:34:10,044 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:34:10,044 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:34:10,044 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:34:10,044 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:34:10,044 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:34:10,045 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:34:10,045 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:34:10,045 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 13:34:10,045 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 13:34:10,045 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 13:34:10,045 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:34:10,045 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:34:10,046 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:34:10,046 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:34:10,046 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:34:10,046 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:34:10,046 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:34:10,046 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:34:10,046 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:34:10,047 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:34:10,047 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:34:10,047 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:34:10,047 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_362e24dd-8b79-4aa3-a968-91f0dd708814/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 -> 3e29a7fa8491bc0edf7e32b974ff0e341ea18209 [2018-11-28 13:34:10,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:34:10,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:34:10,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:34:10,084 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:34:10,085 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:34:10,085 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-11-28 13:34:10,128 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/data/5f7ae146c/920d955a94f8470ea78ca020e0a07648/FLAGa8d38a12b [2018-11-28 13:34:10,559 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:34:10,560 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-11-28 13:34:10,566 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/data/5f7ae146c/920d955a94f8470ea78ca020e0a07648/FLAGa8d38a12b [2018-11-28 13:34:10,574 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/data/5f7ae146c/920d955a94f8470ea78ca020e0a07648 [2018-11-28 13:34:10,576 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:34:10,577 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 13:34:10,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:34:10,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:34:10,580 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:34:10,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:34:10" (1/1) ... [2018-11-28 13:34:10,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5717fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:10, skipping insertion in model container [2018-11-28 13:34:10,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:34:10" (1/1) ... [2018-11-28 13:34:10,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:34:10,611 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:34:10,779 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:34:10,786 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:34:10,853 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:34:10,883 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:34:10,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:10 WrapperNode [2018-11-28 13:34:10,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:34:10,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:34:10,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:34:10,884 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:34:10,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:10" (1/1) ... [2018-11-28 13:34:10,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:10" (1/1) ... [2018-11-28 13:34:10,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:10" (1/1) ... [2018-11-28 13:34:10,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:10" (1/1) ... [2018-11-28 13:34:10,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:10" (1/1) ... [2018-11-28 13:34:10,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:10" (1/1) ... [2018-11-28 13:34:10,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:10" (1/1) ... [2018-11-28 13:34:10,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:34:10,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:34:10,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:34:10,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:34:10,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/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 [2018-11-28 13:34:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:34:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:34:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-11-28 13:34:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2018-11-28 13:34:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:34:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 13:34:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 13:34:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 13:34:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 13:34:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 13:34:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 13:34:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 13:34:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 13:34:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 13:34:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 13:34:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 13:34:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 13:34:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 13:34:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 13:34:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 13:34:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 13:34:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 13:34:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 13:34:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 13:34:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 13:34:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 13:34:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 13:34:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 13:34:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 13:34:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 13:34:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 13:34:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 13:34:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 13:34:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 13:34:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 13:34:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 13:34:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 13:34:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 13:34:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 13:34:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 13:34:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 13:34:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 13:34:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 13:34:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 13:34:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 13:34:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 13:34:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 13:34:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 13:34:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 13:34:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 13:34:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 13:34:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 13:34:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 13:34:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 13:34:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 13:34:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 13:34:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 13:34:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 13:34:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 13:34:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 13:34:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 13:34:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 13:34:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 13:34:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 13:34:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 13:34:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 13:34:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 13:34:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 13:34:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 13:34:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 13:34:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 13:34:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 13:34:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 13:34:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 13:34:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 13:34:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 13:34:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 13:34:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 13:34:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 13:34:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 13:34:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 13:34:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 13:34:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 13:34:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 13:34:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 13:34:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 13:34:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 13:34:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 13:34:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 13:34:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 13:34:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 13:34:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 13:34:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 13:34:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 13:34:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 13:34:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 13:34:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 13:34:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 13:34:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 13:34:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 13:34:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 13:34:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 13:34:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 13:34:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 13:34:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 13:34:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 13:34:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 13:34:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2018-11-28 13:34:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:34:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 13:34:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2018-11-28 13:34:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 13:34:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:34:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:34:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:34:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:34:11,294 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:34:11,294 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 13:34:11,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:34:11 BoogieIcfgContainer [2018-11-28 13:34:11,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:34:11,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:34:11,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:34:11,298 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:34:11,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:34:10" (1/3) ... [2018-11-28 13:34:11,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19dcb435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:34:11, skipping insertion in model container [2018-11-28 13:34:11,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:10" (2/3) ... [2018-11-28 13:34:11,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19dcb435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:34:11, skipping insertion in model container [2018-11-28 13:34:11,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:34:11" (3/3) ... [2018-11-28 13:34:11,301 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0019_false-valid-memtrack_true-termination.i [2018-11-28 13:34:11,308 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:34:11,313 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-11-28 13:34:11,326 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-11-28 13:34:11,347 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:34:11,348 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:34:11,348 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 13:34:11,348 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:34:11,348 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:34:11,348 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:34:11,348 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:34:11,349 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:34:11,349 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:34:11,358 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-28 13:34:11,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 13:34:11,365 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:11,365 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:11,367 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 13:34:11,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:11,371 INFO L82 PathProgramCache]: Analyzing trace with hash -795841943, now seen corresponding path program 1 times [2018-11-28 13:34:11,372 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:34:11,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:34:11,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:11,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:11,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:11,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:11,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:11,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:34:11,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:34:11,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:34:11,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:34:11,520 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 5 states. [2018-11-28 13:34:11,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:11,626 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-11-28 13:34:11,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:34:11,628 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 13:34:11,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:11,633 INFO L225 Difference]: With dead ends: 48 [2018-11-28 13:34:11,633 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 13:34:11,634 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:34:11,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 13:34:11,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-28 13:34:11,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 13:34:11,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-11-28 13:34:11,657 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 9 [2018-11-28 13:34:11,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:11,657 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-11-28 13:34:11,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:34:11,658 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-11-28 13:34:11,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 13:34:11,658 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:11,658 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:11,659 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 13:34:11,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:11,659 INFO L82 PathProgramCache]: Analyzing trace with hash -795841942, now seen corresponding path program 1 times [2018-11-28 13:34:11,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:34:11,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:34:11,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:11,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:11,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:11,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:11,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:11,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:34:11,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:34:11,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:34:11,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:34:11,728 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 5 states. [2018-11-28 13:34:11,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:11,808 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-11-28 13:34:11,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:34:11,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 13:34:11,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:11,809 INFO L225 Difference]: With dead ends: 44 [2018-11-28 13:34:11,809 INFO L226 Difference]: Without dead ends: 44 [2018-11-28 13:34:11,810 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:34:11,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-28 13:34:11,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-28 13:34:11,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-28 13:34:11,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-11-28 13:34:11,814 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 9 [2018-11-28 13:34:11,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:11,814 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-11-28 13:34:11,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:34:11,814 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-11-28 13:34:11,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 13:34:11,815 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:11,815 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:11,815 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 13:34:11,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:11,815 INFO L82 PathProgramCache]: Analyzing trace with hash -299929109, now seen corresponding path program 1 times [2018-11-28 13:34:11,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:34:11,816 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:34:11,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:11,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:11,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:11,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:11,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:34:11,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:34:11,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:34:11,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:34:11,896 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 7 states. [2018-11-28 13:34:11,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:11,989 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-11-28 13:34:11,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:34:11,989 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-11-28 13:34:11,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:11,990 INFO L225 Difference]: With dead ends: 43 [2018-11-28 13:34:11,990 INFO L226 Difference]: Without dead ends: 43 [2018-11-28 13:34:11,990 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:34:11,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-28 13:34:11,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-28 13:34:11,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 13:34:11,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-11-28 13:34:11,994 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 11 [2018-11-28 13:34:11,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:11,994 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-11-28 13:34:11,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:34:11,994 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-11-28 13:34:11,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 13:34:11,995 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:11,995 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:11,995 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 13:34:11,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:11,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726730, now seen corresponding path program 1 times [2018-11-28 13:34:11,996 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:34:11,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:34:11,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:11,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:11,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:12,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:12,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:12,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:34:12,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:34:12,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:34:12,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:34:12,046 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 7 states. [2018-11-28 13:34:12,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:12,131 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-11-28 13:34:12,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:34:12,132 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-11-28 13:34:12,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:12,132 INFO L225 Difference]: With dead ends: 47 [2018-11-28 13:34:12,132 INFO L226 Difference]: Without dead ends: 47 [2018-11-28 13:34:12,133 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:34:12,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-28 13:34:12,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2018-11-28 13:34:12,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 13:34:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-11-28 13:34:12,137 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 16 [2018-11-28 13:34:12,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:12,138 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-11-28 13:34:12,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:34:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-11-28 13:34:12,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 13:34:12,138 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:12,138 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:12,139 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 13:34:12,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:12,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726731, now seen corresponding path program 1 times [2018-11-28 13:34:12,139 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:34:12,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:34:12,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:12,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:12,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:12,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:12,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:12,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:34:12,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:34:12,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:34:12,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:34:12,233 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2018-11-28 13:34:12,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:12,302 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-28 13:34:12,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:34:12,303 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-11-28 13:34:12,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:12,303 INFO L225 Difference]: With dead ends: 37 [2018-11-28 13:34:12,303 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 13:34:12,304 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:34:12,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 13:34:12,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-28 13:34:12,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 13:34:12,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-11-28 13:34:12,306 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 16 [2018-11-28 13:34:12,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:12,306 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-11-28 13:34:12,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:34:12,307 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-11-28 13:34:12,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 13:34:12,307 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:12,307 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:12,308 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 13:34:12,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:12,308 INFO L82 PathProgramCache]: Analyzing trace with hash 362195120, now seen corresponding path program 1 times [2018-11-28 13:34:12,308 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:34:12,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:34:12,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:12,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:12,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:12,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:12,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 13:34:12,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 13:34:12,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 13:34:12,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:34:12,392 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 10 states. [2018-11-28 13:34:12,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:12,480 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-11-28 13:34:12,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:34:12,481 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-11-28 13:34:12,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:12,482 INFO L225 Difference]: With dead ends: 36 [2018-11-28 13:34:12,482 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 13:34:12,482 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-11-28 13:34:12,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 13:34:12,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-28 13:34:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 13:34:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-11-28 13:34:12,484 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 21 [2018-11-28 13:34:12,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:12,484 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-11-28 13:34:12,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 13:34:12,485 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-11-28 13:34:12,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 13:34:12,485 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:12,485 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:12,486 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 13:34:12,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:12,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1656853106, now seen corresponding path program 1 times [2018-11-28 13:34:12,486 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:34:12,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:34:12,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:12,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:12,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:12,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:12,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:12,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 13:34:12,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 13:34:12,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 13:34:12,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:34:12,576 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 10 states. [2018-11-28 13:34:12,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:12,691 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-11-28 13:34:12,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 13:34:12,692 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-11-28 13:34:12,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:12,694 INFO L225 Difference]: With dead ends: 38 [2018-11-28 13:34:12,694 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 13:34:12,694 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-11-28 13:34:12,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 13:34:12,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-11-28 13:34:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 13:34:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-11-28 13:34:12,697 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 22 [2018-11-28 13:34:12,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:12,697 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-11-28 13:34:12,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 13:34:12,697 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-11-28 13:34:12,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 13:34:12,698 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:12,698 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:12,698 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 13:34:12,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:12,699 INFO L82 PathProgramCache]: Analyzing trace with hash 177161330, now seen corresponding path program 1 times [2018-11-28 13:34:12,699 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:34:12,699 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:34:12,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:12,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:12,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:12,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:12,730 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:12,730 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 13:34:12,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 13:34:12,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 13:34:12,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 13:34:12,731 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 4 states. [2018-11-28 13:34:12,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:12,757 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-28 13:34:12,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 13:34:12,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-11-28 13:34:12,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:12,758 INFO L225 Difference]: With dead ends: 37 [2018-11-28 13:34:12,758 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 13:34:12,759 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:34:12,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 13:34:12,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-11-28 13:34:12,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 13:34:12,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-11-28 13:34:12,761 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 23 [2018-11-28 13:34:12,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:12,762 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-11-28 13:34:12,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 13:34:12,762 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-11-28 13:34:12,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 13:34:12,762 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:12,762 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:12,763 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 13:34:12,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:12,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1197034000, now seen corresponding path program 1 times [2018-11-28 13:34:12,763 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:34:12,763 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:34:12,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:12,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:12,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:12,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:12,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:12,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-28 13:34:12,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-28 13:34:12,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-28 13:34:12,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2018-11-28 13:34:12,980 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 15 states. [2018-11-28 13:34:13,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:13,189 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-11-28 13:34:13,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-28 13:34:13,189 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2018-11-28 13:34:13,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:13,189 INFO L225 Difference]: With dead ends: 27 [2018-11-28 13:34:13,190 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 13:34:13,190 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2018-11-28 13:34:13,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 13:34:13,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 13:34:13,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 13:34:13,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-11-28 13:34:13,192 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 24 [2018-11-28 13:34:13,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:13,192 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-11-28 13:34:13,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-28 13:34:13,193 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-11-28 13:34:13,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 13:34:13,193 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:13,193 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:13,193 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 13:34:13,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:13,194 INFO L82 PathProgramCache]: Analyzing trace with hash -119633917, now seen corresponding path program 1 times [2018-11-28 13:34:13,194 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:34:13,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:34:13,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:13,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:13,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:34:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:34:13,232 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 13:34:13,243 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 13:34:13,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:34:13 BoogieIcfgContainer [2018-11-28 13:34:13,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:34:13,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:34:13,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:34:13,255 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:34:13,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:34:11" (3/4) ... [2018-11-28 13:34:13,258 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:34:13,258 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:34:13,258 INFO L168 Benchmark]: Toolchain (without parser) took 2682.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:13,259 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:34:13,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -127.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:13,260 INFO L168 Benchmark]: Boogie Preprocessor took 39.47 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:13,261 INFO L168 Benchmark]: RCFGBuilder took 370.91 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: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:13,261 INFO L168 Benchmark]: TraceAbstraction took 1958.82 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 88.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -99.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:34:13,261 INFO L168 Benchmark]: Witness Printer took 3.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:34:13,263 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -127.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.47 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 370.91 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: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1958.82 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 88.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -99.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 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: 639]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 639. Possible FailurePath: [L640] TData data; VAL [data={26:0}] [L641] CALL alloc_data(&data) VAL [pdata={26:0}] [L625] pdata->lo = malloc(16) VAL [malloc(16)={28:0}, pdata={26:0}, pdata={26:0}] [L626] pdata->hi = malloc(24) VAL [malloc(16)={28:0}, malloc(24)={27:0}, pdata={26:0}, pdata={26:0}] [L641] RET alloc_data(&data) VAL [data={26:0}] [L642] CALL free_data(&data) VAL [data={26:0}] [L630] EXPR data->lo VAL [data={26:0}, data={26:0}, data->lo={28:0}] [L630] void *lo = data->lo; [L631] EXPR data->hi VAL [data={26:0}, data={26:0}, data->hi={27:0}, lo={28:0}] [L631] void *hi = data->hi; [L632] COND FALSE !(lo == hi) VAL [data={26:0}, data={26:0}, hi={27:0}, lo={28:0}] [L636] data->lo = (void *) 0 VAL [data={26:0}, data={26:0}, hi={27:0}, lo={28:0}] [L637] data->hi = (void *) 0 VAL [data={26:0}, data={26:0}, hi={27:0}, lo={28:0}] [L642] RET free_data(&data) VAL [data={26:0}] [L643] return 0; [L643] return 0; VAL [\result=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 17 error locations. UNSAFE Result, 1.9s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 252 SDtfs, 196 SDslu, 711 SDs, 0 SdLazy, 839 SolverSat, 67 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 9 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 12738 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 0.1.23-0cd3be1 [2018-11-28 13:34:14,752 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:34:14,753 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:34:14,761 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:34:14,762 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:34:14,762 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:34:14,763 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:34:14,764 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:34:14,765 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:34:14,766 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:34:14,766 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:34:14,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:34:14,767 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:34:14,768 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:34:14,768 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:34:14,769 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:34:14,769 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:34:14,771 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:34:14,772 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:34:14,773 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:34:14,773 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:34:14,774 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:34:14,776 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:34:14,776 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:34:14,776 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:34:14,777 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:34:14,777 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:34:14,778 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:34:14,778 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:34:14,779 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:34:14,779 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:34:14,780 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:34:14,780 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:34:14,780 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:34:14,781 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:34:14,781 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:34:14,781 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-11-28 13:34:14,791 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:34:14,791 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:34:14,792 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:34:14,792 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:34:14,792 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:34:14,793 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:34:14,793 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:34:14,793 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:34:14,793 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:34:14,793 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:34:14,793 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:34:14,793 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:34:14,793 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:34:14,794 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 13:34:14,794 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 13:34:14,794 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 13:34:14,794 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:34:14,794 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 13:34:14,794 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 13:34:14,794 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:34:14,794 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:34:14,795 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:34:14,795 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:34:14,795 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:34:14,795 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:34:14,795 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:34:14,795 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:34:14,795 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:34:14,795 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 13:34:14,795 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:34:14,796 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 13:34:14,796 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_362e24dd-8b79-4aa3-a968-91f0dd708814/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 -> 3e29a7fa8491bc0edf7e32b974ff0e341ea18209 [2018-11-28 13:34:14,821 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:34:14,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:34:14,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:34:14,834 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:34:14,834 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:34:14,834 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-11-28 13:34:14,883 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/data/75bf599c8/6da3ed5f1bb5417c9205e48cdb76731f/FLAG214965aa8 [2018-11-28 13:34:15,318 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:34:15,319 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-11-28 13:34:15,327 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/data/75bf599c8/6da3ed5f1bb5417c9205e48cdb76731f/FLAG214965aa8 [2018-11-28 13:34:15,337 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/data/75bf599c8/6da3ed5f1bb5417c9205e48cdb76731f [2018-11-28 13:34:15,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:34:15,340 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 13:34:15,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:34:15,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:34:15,344 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:34:15,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:34:15" (1/1) ... [2018-11-28 13:34:15,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449f3a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:15, skipping insertion in model container [2018-11-28 13:34:15,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:34:15" (1/1) ... [2018-11-28 13:34:15,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:34:15,380 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:34:15,576 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:34:15,583 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:34:15,615 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:34:15,694 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:34:15,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:15 WrapperNode [2018-11-28 13:34:15,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:34:15,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:34:15,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:34:15,695 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:34:15,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:15" (1/1) ... [2018-11-28 13:34:15,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:15" (1/1) ... [2018-11-28 13:34:15,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:15" (1/1) ... [2018-11-28 13:34:15,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:15" (1/1) ... [2018-11-28 13:34:15,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:15" (1/1) ... [2018-11-28 13:34:15,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:15" (1/1) ... [2018-11-28 13:34:15,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:15" (1/1) ... [2018-11-28 13:34:15,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:34:15,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:34:15,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:34:15,731 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:34:15,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/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 [2018-11-28 13:34:15,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:34:15,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:34:15,763 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-11-28 13:34:15,763 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2018-11-28 13:34:15,763 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:34:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 13:34:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 13:34:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 13:34:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 13:34:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 13:34:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 13:34:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 13:34:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 13:34:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 13:34:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 13:34:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 13:34:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 13:34:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 13:34:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 13:34:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 13:34:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 13:34:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 13:34:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 13:34:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 13:34:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 13:34:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 13:34:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 13:34:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 13:34:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 13:34:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 13:34:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 13:34:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 13:34:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 13:34:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 13:34:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 13:34:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 13:34:15,767 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 13:34:15,767 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 13:34:15,767 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 13:34:15,767 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 13:34:15,767 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 13:34:15,767 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 13:34:15,767 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 13:34:15,767 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 13:34:15,767 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 13:34:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 13:34:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 13:34:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 13:34:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 13:34:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 13:34:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 13:34:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 13:34:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 13:34:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 13:34:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 13:34:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 13:34:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 13:34:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 13:34:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 13:34:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 13:34:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 13:34:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 13:34:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 13:34:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 13:34:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 13:34:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 13:34:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 13:34:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 13:34:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 13:34:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 13:34:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 13:34:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 13:34:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 13:34:15,771 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 13:34:15,771 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 13:34:15,771 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 13:34:15,771 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 13:34:15,771 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 13:34:15,771 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 13:34:15,771 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 13:34:15,771 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 13:34:15,771 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 13:34:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 13:34:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 13:34:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 13:34:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 13:34:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 13:34:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 13:34:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 13:34:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 13:34:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 13:34:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 13:34:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 13:34:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 13:34:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 13:34:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 13:34:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 13:34:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 13:34:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 13:34:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 13:34:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 13:34:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 13:34:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 13:34:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 13:34:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 13:34:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 13:34:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 13:34:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2018-11-28 13:34:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:34:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 13:34:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2018-11-28 13:34:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 13:34:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:34:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:34:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:34:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:34:16,085 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:34:16,085 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 13:34:16,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:34:16 BoogieIcfgContainer [2018-11-28 13:34:16,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:34:16,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:34:16,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:34:16,088 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:34:16,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:34:15" (1/3) ... [2018-11-28 13:34:16,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170fe9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:34:16, skipping insertion in model container [2018-11-28 13:34:16,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:15" (2/3) ... [2018-11-28 13:34:16,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170fe9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:34:16, skipping insertion in model container [2018-11-28 13:34:16,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:34:16" (3/3) ... [2018-11-28 13:34:16,091 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0019_false-valid-memtrack_true-termination.i [2018-11-28 13:34:16,097 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:34:16,104 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-11-28 13:34:16,117 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-11-28 13:34:16,136 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:34:16,136 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:34:16,137 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 13:34:16,137 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:34:16,137 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:34:16,137 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:34:16,137 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:34:16,137 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:34:16,137 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:34:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-28 13:34:16,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 13:34:16,151 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:16,152 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:16,153 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION]=== [2018-11-28 13:34:16,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:16,157 INFO L82 PathProgramCache]: Analyzing trace with hash -795841943, now seen corresponding path program 1 times [2018-11-28 13:34:16,159 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 13:34:16,160 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/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 [2018-11-28 13:34:16,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:16,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:34:16,242 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 13:34:16,243 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,248 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,248 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-28 13:34:16,268 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 12 treesize of output 11 [2018-11-28 13:34:16,269 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,275 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. [2018-11-28 13:34:16,275 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-11-28 13:34:16,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:16,291 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:34:16,293 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:16,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:34:16,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:34:16,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:34:16,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:34:16,311 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 5 states. [2018-11-28 13:34:16,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:16,454 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-11-28 13:34:16,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:34:16,455 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 13:34:16,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:16,460 INFO L225 Difference]: With dead ends: 48 [2018-11-28 13:34:16,460 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 13:34:16,462 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:34:16,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 13:34:16,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-28 13:34:16,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 13:34:16,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-11-28 13:34:16,486 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 9 [2018-11-28 13:34:16,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:16,486 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-11-28 13:34:16,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:34:16,487 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-11-28 13:34:16,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 13:34:16,487 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:16,487 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:16,487 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION]=== [2018-11-28 13:34:16,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:16,488 INFO L82 PathProgramCache]: Analyzing trace with hash -795841942, now seen corresponding path program 1 times [2018-11-28 13:34:16,488 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 13:34:16,488 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/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 [2018-11-28 13:34:16,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:16,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:34:16,532 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 13:34:16,533 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,542 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 13:34:16,543 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,555 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,556 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 13:34:16,603 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:16,605 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:16,607 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 [2018-11-28 13:34:16,607 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,634 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:16,642 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:16,643 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 11 treesize of output 4 [2018-11-28 13:34:16,643 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,653 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. [2018-11-28 13:34:16,654 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-11-28 13:34:16,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:16,677 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:34:16,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:16,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:34:16,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:34:16,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:34:16,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:34:16,684 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 5 states. [2018-11-28 13:34:16,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:16,842 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-11-28 13:34:16,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:34:16,843 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 13:34:16,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:16,843 INFO L225 Difference]: With dead ends: 44 [2018-11-28 13:34:16,843 INFO L226 Difference]: Without dead ends: 44 [2018-11-28 13:34:16,844 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:34:16,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-28 13:34:16,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-28 13:34:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-28 13:34:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-11-28 13:34:16,848 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 9 [2018-11-28 13:34:16,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:16,849 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-11-28 13:34:16,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:34:16,849 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-11-28 13:34:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 13:34:16,850 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:16,850 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:16,850 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION]=== [2018-11-28 13:34:16,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:16,850 INFO L82 PathProgramCache]: Analyzing trace with hash -299929109, now seen corresponding path program 1 times [2018-11-28 13:34:16,851 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 13:34:16,851 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/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 [2018-11-28 13:34:16,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:16,916 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:34:16,921 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 13:34:16,921 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,929 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 13:34:16,929 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,938 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,939 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 13:34:16,964 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:16,966 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:16,967 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 [2018-11-28 13:34:16,967 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,982 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:16,983 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:16,984 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 13 treesize of output 4 [2018-11-28 13:34:16,985 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:16,993 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. [2018-11-28 13:34:16,993 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:14 [2018-11-28 13:34:17,057 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:17,062 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:17,063 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 13 treesize of output 4 [2018-11-28 13:34:17,063 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:17,079 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:17,082 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:17,083 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:17,084 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:17,093 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 40 [2018-11-28 13:34:17,094 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-28 13:34:17,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-28 13:34:17,150 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:34 [2018-11-28 13:34:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:17,182 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:34:17,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:17,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:34:17,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:34:17,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:34:17,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:34:17,184 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 7 states. [2018-11-28 13:34:17,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:17,407 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-11-28 13:34:17,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:34:17,408 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-11-28 13:34:17,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:17,408 INFO L225 Difference]: With dead ends: 43 [2018-11-28 13:34:17,408 INFO L226 Difference]: Without dead ends: 43 [2018-11-28 13:34:17,410 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:34:17,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-28 13:34:17,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-28 13:34:17,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 13:34:17,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-11-28 13:34:17,414 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 11 [2018-11-28 13:34:17,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:17,415 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-11-28 13:34:17,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:34:17,415 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-11-28 13:34:17,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 13:34:17,415 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:17,416 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:17,417 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION]=== [2018-11-28 13:34:17,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:17,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726730, now seen corresponding path program 1 times [2018-11-28 13:34:17,417 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 13:34:17,417 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 13:34:17,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:17,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:34:17,467 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 [2018-11-28 13:34:17,468 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:17,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:17,469 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2018-11-28 13:34:17,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:17,492 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:34:17,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:17,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:34:17,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:34:17,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:34:17,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:34:17,494 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 7 states. [2018-11-28 13:34:17,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:17,657 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-11-28 13:34:17,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:34:17,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-11-28 13:34:17,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:17,658 INFO L225 Difference]: With dead ends: 47 [2018-11-28 13:34:17,659 INFO L226 Difference]: Without dead ends: 47 [2018-11-28 13:34:17,659 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:34:17,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-28 13:34:17,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2018-11-28 13:34:17,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 13:34:17,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-11-28 13:34:17,664 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 16 [2018-11-28 13:34:17,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:17,665 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-11-28 13:34:17,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:34:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-11-28 13:34:17,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 13:34:17,665 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:17,665 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:17,666 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION]=== [2018-11-28 13:34:17,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:17,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726731, now seen corresponding path program 1 times [2018-11-28 13:34:17,666 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 13:34:17,666 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 13:34:17,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:17,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:34:17,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:17,780 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:34:17,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:17,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:34:17,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:34:17,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:34:17,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:34:17,782 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2018-11-28 13:34:17,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:17,956 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-28 13:34:17,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:34:17,956 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-11-28 13:34:17,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:17,957 INFO L225 Difference]: With dead ends: 37 [2018-11-28 13:34:17,957 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 13:34:17,958 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:34:17,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 13:34:17,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-28 13:34:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 13:34:17,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-11-28 13:34:17,961 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 16 [2018-11-28 13:34:17,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:17,961 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-11-28 13:34:17,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:34:17,961 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-11-28 13:34:17,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 13:34:17,961 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:17,962 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:17,962 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION]=== [2018-11-28 13:34:17,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:17,962 INFO L82 PathProgramCache]: Analyzing trace with hash 362195120, now seen corresponding path program 1 times [2018-11-28 13:34:17,962 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 13:34:17,962 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 13:34:17,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:18,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:34:18,045 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 13:34:18,047 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-28 13:34:18,047 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,049 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,051 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,051 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-28 13:34:18,102 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-28 13:34:18,104 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 11 treesize of output 3 [2018-11-28 13:34:18,104 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,105 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,106 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,106 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-28 13:34:18,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:18,137 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:34:18,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:18,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 13:34:18,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 13:34:18,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 13:34:18,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-11-28 13:34:18,144 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 12 states. [2018-11-28 13:34:18,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:18,424 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-11-28 13:34:18,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 13:34:18,424 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2018-11-28 13:34:18,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:18,426 INFO L225 Difference]: With dead ends: 38 [2018-11-28 13:34:18,426 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 13:34:18,426 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2018-11-28 13:34:18,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 13:34:18,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-11-28 13:34:18,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 13:34:18,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-11-28 13:34:18,429 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 21 [2018-11-28 13:34:18,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:18,430 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-11-28 13:34:18,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 13:34:18,430 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-11-28 13:34:18,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 13:34:18,430 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:18,430 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:18,431 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION]=== [2018-11-28 13:34:18,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:18,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1656853106, now seen corresponding path program 1 times [2018-11-28 13:34:18,431 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 13:34:18,431 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 13:34:18,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:18,501 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:34:18,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 14 treesize of output 11 [2018-11-28 13:34:18,523 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,530 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,530 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:17 [2018-11-28 13:34:18,545 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 13:34:18,547 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-28 13:34:18,548 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,550 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,557 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2018-11-28 13:34:18,618 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-28 13:34:18,621 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 15 treesize of output 7 [2018-11-28 13:34:18,621 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,622 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:18,625 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:34:18,626 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:15 [2018-11-28 13:34:18,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:18,662 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:34:18,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:18,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-28 13:34:18,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 13:34:18,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 13:34:18,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-28 13:34:18,664 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 13 states. [2018-11-28 13:34:19,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:19,023 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-28 13:34:19,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 13:34:19,024 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 22 [2018-11-28 13:34:19,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:19,024 INFO L225 Difference]: With dead ends: 37 [2018-11-28 13:34:19,024 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 13:34:19,025 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2018-11-28 13:34:19,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 13:34:19,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-11-28 13:34:19,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 13:34:19,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-11-28 13:34:19,027 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 22 [2018-11-28 13:34:19,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:19,027 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-11-28 13:34:19,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 13:34:19,027 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-11-28 13:34:19,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 13:34:19,028 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:19,028 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:19,028 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION]=== [2018-11-28 13:34:19,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:19,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1197034000, now seen corresponding path program 1 times [2018-11-28 13:34:19,028 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 13:34:19,029 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 13:34:19,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:19,107 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:34:19,115 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 13:34:19,115 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,130 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,130 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-28 13:34:19,143 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-28 13:34:19,146 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-28 13:34:19,146 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,149 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,158 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,159 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:16 [2018-11-28 13:34:19,176 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:19,178 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:19,178 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2018-11-28 13:34:19,179 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,185 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,185 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:15 [2018-11-28 13:34:19,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2018-11-28 13:34:19,205 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:34:19,205 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 17 treesize of output 24 [2018-11-28 13:34:19,206 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,212 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,218 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,218 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:14 [2018-11-28 13:34:19,321 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2018-11-28 13:34:19,323 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 19 treesize of output 4 [2018-11-28 13:34:19,324 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,325 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,326 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:19,326 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:4 [2018-11-28 13:34:19,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:34:19,357 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:34:19,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:19,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-28 13:34:19,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 13:34:19,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 13:34:19,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-11-28 13:34:19,359 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 14 states. [2018-11-28 13:34:19,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:19,761 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-11-28 13:34:19,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 13:34:19,761 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 24 [2018-11-28 13:34:19,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:19,761 INFO L225 Difference]: With dead ends: 27 [2018-11-28 13:34:19,762 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 13:34:19,762 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2018-11-28 13:34:19,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 13:34:19,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 13:34:19,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 13:34:19,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-11-28 13:34:19,764 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 24 [2018-11-28 13:34:19,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:19,764 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-11-28 13:34:19,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 13:34:19,764 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-11-28 13:34:19,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 13:34:19,764 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:19,765 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:34:19,765 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION]=== [2018-11-28 13:34:19,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:19,765 INFO L82 PathProgramCache]: Analyzing trace with hash -119633917, now seen corresponding path program 1 times [2018-11-28 13:34:19,765 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 13:34:19,765 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_362e24dd-8b79-4aa3-a968-91f0dd708814/bin-2019/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 13:34:19,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:34:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:34:19,964 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 13:34:19,976 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 13:34:19,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:34:19 BoogieIcfgContainer [2018-11-28 13:34:19,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:34:19,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:34:19,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:34:19,991 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:34:19,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:34:16" (3/4) ... [2018-11-28 13:34:19,995 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:34:19,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:34:19,996 INFO L168 Benchmark]: Toolchain (without parser) took 4656.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 940.7 MB in the beginning and 983.0 MB in the end (delta: -42.3 MB). Peak memory consumption was 129.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:19,998 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. [2018-11-28 13:34:19,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:19,998 INFO L168 Benchmark]: Boogie Preprocessor took 36.08 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:19,999 INFO L168 Benchmark]: RCFGBuilder took 354.12 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:19,999 INFO L168 Benchmark]: TraceAbstraction took 3904.10 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 84.4 MB). Free memory was 1.0 GB in the beginning and 983.0 MB in the end (delta: 35.3 MB). Peak memory consumption was 119.8 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:19,999 INFO L168 Benchmark]: Witness Printer took 5.16 ms. Allocated memory is still 1.2 GB. Free memory is still 983.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:34:20,001 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 353.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.08 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 354.12 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3904.10 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 84.4 MB). Free memory was 1.0 GB in the beginning and 983.0 MB in the end (delta: 35.3 MB). Peak memory consumption was 119.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.16 ms. Allocated memory is still 1.2 GB. Free memory is still 983.0 MB. 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: 639]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 639. Possible FailurePath: [L640] TData data; VAL [data={2013200382:0}] [L641] CALL alloc_data(&data) VAL [pdata={2013200382:0}] [L625] pdata->lo = malloc(16) VAL [malloc(16)={-2013200383:0}, pdata={2013200382:0}, pdata={2013200382:0}] [L626] pdata->hi = malloc(24) VAL [malloc(16)={-2013200383:0}, malloc(24)={-2013200384:0}, pdata={2013200382:0}, pdata={2013200382:0}] [L641] RET alloc_data(&data) VAL [data={2013200382:0}] [L642] CALL free_data(&data) VAL [data={2013200382:0}] [L630] EXPR data->lo VAL [data={2013200382:0}, data={2013200382:0}, data->lo={-2013200383:0}] [L630] void *lo = data->lo; [L631] EXPR data->hi VAL [data={2013200382:0}, data={2013200382:0}, data->hi={-2013200384:0}, lo={-2013200383:0}] [L631] void *hi = data->hi; [L632] COND FALSE !(lo == hi) VAL [data={2013200382:0}, data={2013200382:0}, hi={-2013200384:0}, lo={-2013200383:0}] [L636] data->lo = (void *) 0 VAL [data={2013200382:0}, data={2013200382:0}, hi={-2013200384:0}, lo={-2013200383:0}] [L637] data->hi = (void *) 0 VAL [data={2013200382:0}, data={2013200382:0}, hi={-2013200384:0}, lo={-2013200383:0}] [L642] RET free_data(&data) VAL [data={2013200382:0}] [L643] return 0; [L643] return 0; VAL [\result=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 17 error locations. UNSAFE Result, 3.8s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 217 SDtfs, 183 SDslu, 707 SDs, 0 SdLazy, 887 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 8 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 120 ConstructedInterpolants, 4 QuantifiedInterpolants, 14691 SizeOfPredicates, 54 NumberOfNonLiveVariables, 585 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...