./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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/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_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/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_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/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_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/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 0.1.23-635dfa2 [2018-12-02 20:21:28,080 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 20:21:28,081 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 20:21:28,087 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 20:21:28,087 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 20:21:28,088 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 20:21:28,088 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 20:21:28,089 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 20:21:28,090 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 20:21:28,090 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 20:21:28,091 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 20:21:28,091 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 20:21:28,091 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 20:21:28,092 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 20:21:28,092 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 20:21:28,093 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 20:21:28,093 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 20:21:28,094 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 20:21:28,095 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 20:21:28,096 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 20:21:28,097 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 20:21:28,097 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 20:21:28,098 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 20:21:28,098 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 20:21:28,099 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 20:21:28,099 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 20:21:28,100 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 20:21:28,100 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 20:21:28,100 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 20:21:28,101 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 20:21:28,101 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 20:21:28,101 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 20:21:28,102 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 20:21:28,102 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 20:21:28,102 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 20:21:28,103 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 20:21:28,103 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-02 20:21:28,110 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 20:21:28,110 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 20:21:28,110 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 20:21:28,111 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 20:21:28,111 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 20:21:28,111 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 20:21:28,111 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 20:21:28,111 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 20:21:28,111 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 20:21:28,111 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 20:21:28,111 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 20:21:28,112 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 20:21:28,112 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 20:21:28,112 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 20:21:28,112 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 20:21:28,112 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 20:21:28,112 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 20:21:28,112 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 20:21:28,112 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 20:21:28,112 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 20:21:28,112 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 20:21:28,112 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 20:21:28,113 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 20:21:28,113 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 20:21:28,113 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 20:21:28,113 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 20:21:28,113 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 20:21:28,113 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 20:21:28,113 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_b0847fd1-ca06-4301-8b8c-22daac5dbadc/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 [2018-12-02 20:21:28,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 20:21:28,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 20:21:28,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 20:21:28,143 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 20:21:28,143 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 20:21:28,144 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-12-02 20:21:28,183 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/data/ea890a9fa/7bb7699d65824f5db8748b40f0cffc00/FLAGde41d1ac0 [2018-12-02 20:21:28,616 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 20:21:28,617 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-12-02 20:21:28,623 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/data/ea890a9fa/7bb7699d65824f5db8748b40f0cffc00/FLAGde41d1ac0 [2018-12-02 20:21:28,630 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/data/ea890a9fa/7bb7699d65824f5db8748b40f0cffc00 [2018-12-02 20:21:28,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 20:21:28,633 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-02 20:21:28,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 20:21:28,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 20:21:28,635 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 20:21:28,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:28" (1/1) ... [2018-12-02 20:21:28,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f76134a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:28, skipping insertion in model container [2018-12-02 20:21:28,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:28" (1/1) ... [2018-12-02 20:21:28,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 20:21:28,658 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 20:21:28,794 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:21:28,800 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 20:21:28,856 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:21:28,875 INFO L195 MainTranslator]: Completed translation [2018-12-02 20:21:28,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:28 WrapperNode [2018-12-02 20:21:28,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 20:21:28,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 20:21:28,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 20:21:28,876 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 20:21:28,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:28" (1/1) ... [2018-12-02 20:21:28,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:28" (1/1) ... [2018-12-02 20:21:28,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:28" (1/1) ... [2018-12-02 20:21:28,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:28" (1/1) ... [2018-12-02 20:21:28,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:28" (1/1) ... [2018-12-02 20:21:28,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:28" (1/1) ... [2018-12-02 20:21:28,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:28" (1/1) ... [2018-12-02 20:21:28,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 20:21:28,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 20:21:28,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 20:21:28,903 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 20:21:28,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 20:21:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 20:21:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 20:21:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-12-02 20:21:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2018-12-02 20:21:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 20:21:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-02 20:21:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-02 20:21:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-02 20:21:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-02 20:21:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-02 20:21:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-02 20:21:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-02 20:21:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-02 20:21:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-02 20:21:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-02 20:21:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-02 20:21:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-02 20:21:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-02 20:21:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-02 20:21:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-02 20:21:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-02 20:21:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-02 20:21:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-02 20:21:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-02 20:21:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-02 20:21:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-02 20:21:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-02 20:21:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-02 20:21:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-02 20:21:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-02 20:21:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-02 20:21:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-02 20:21:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-02 20:21:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-02 20:21:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-02 20:21:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-02 20:21:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-02 20:21:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-02 20:21:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-02 20:21:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-02 20:21:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-02 20:21:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-02 20:21:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-02 20:21:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-02 20:21:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-02 20:21:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-02 20:21:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-02 20:21:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-02 20:21:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-02 20:21:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-02 20:21:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-02 20:21:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-02 20:21:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-02 20:21:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-02 20:21:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-02 20:21:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-02 20:21:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-02 20:21:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-02 20:21:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-02 20:21:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-02 20:21:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-02 20:21:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-02 20:21:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-02 20:21:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-02 20:21:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-02 20:21:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-02 20:21:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-02 20:21:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-02 20:21:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-02 20:21:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-02 20:21:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-02 20:21:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-02 20:21:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-02 20:21:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-02 20:21:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-02 20:21:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-02 20:21:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-02 20:21:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-02 20:21:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-02 20:21:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-02 20:21:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-02 20:21:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-02 20:21:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-02 20:21:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-02 20:21:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-02 20:21:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-02 20:21:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-02 20:21:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-02 20:21:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-02 20:21:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-02 20:21:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-02 20:21:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-02 20:21:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-02 20:21:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-02 20:21:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-02 20:21:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2018-12-02 20:21:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 20:21:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 20:21:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2018-12-02 20:21:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 20:21:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 20:21:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 20:21:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 20:21:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 20:21:29,158 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 20:21:29,159 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 20:21:29,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:29 BoogieIcfgContainer [2018-12-02 20:21:29,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 20:21:29,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 20:21:29,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 20:21:29,161 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 20:21:29,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:21:28" (1/3) ... [2018-12-02 20:21:29,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5943dd5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:21:29, skipping insertion in model container [2018-12-02 20:21:29,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:28" (2/3) ... [2018-12-02 20:21:29,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5943dd5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:21:29, skipping insertion in model container [2018-12-02 20:21:29,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:29" (3/3) ... [2018-12-02 20:21:29,163 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0019_false-valid-memtrack_true-termination.i [2018-12-02 20:21:29,169 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 20:21:29,174 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-12-02 20:21:29,184 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-12-02 20:21:29,200 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 20:21:29,200 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 20:21:29,201 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-02 20:21:29,201 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 20:21:29,201 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 20:21:29,201 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 20:21:29,201 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 20:21:29,201 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 20:21:29,201 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 20:21:29,212 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-02 20:21:29,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 20:21:29,219 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:29,219 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:21:29,221 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION]=== [2018-12-02 20:21:29,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:29,225 INFO L82 PathProgramCache]: Analyzing trace with hash -795841943, now seen corresponding path program 1 times [2018-12-02 20:21:29,226 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:21:29,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:21:29,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:29,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:29,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:29,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:29,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 20:21:29,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 20:21:29,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 20:21:29,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 20:21:29,358 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 5 states. [2018-12-02 20:21:29,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:29,438 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-12-02 20:21:29,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 20:21:29,439 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-02 20:21:29,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:29,445 INFO L225 Difference]: With dead ends: 48 [2018-12-02 20:21:29,445 INFO L226 Difference]: Without dead ends: 45 [2018-12-02 20:21:29,446 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 [2018-12-02 20:21:29,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-02 20:21:29,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-12-02 20:21:29,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-02 20:21:29,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-12-02 20:21:29,467 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 9 [2018-12-02 20:21:29,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:29,467 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-12-02 20:21:29,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 20:21:29,467 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-12-02 20:21:29,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 20:21:29,468 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:29,468 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:21:29,468 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION]=== [2018-12-02 20:21:29,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:29,468 INFO L82 PathProgramCache]: Analyzing trace with hash -795841942, now seen corresponding path program 1 times [2018-12-02 20:21:29,468 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:21:29,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:21:29,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:29,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:29,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:29,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:29,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:29,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 20:21:29,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 20:21:29,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 20:21:29,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 20:21:29,527 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 5 states. [2018-12-02 20:21:29,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:29,580 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-12-02 20:21:29,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 20:21:29,580 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-02 20:21:29,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:29,581 INFO L225 Difference]: With dead ends: 44 [2018-12-02 20:21:29,581 INFO L226 Difference]: Without dead ends: 44 [2018-12-02 20:21:29,582 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 [2018-12-02 20:21:29,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-02 20:21:29,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-02 20:21:29,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-02 20:21:29,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-12-02 20:21:29,586 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 9 [2018-12-02 20:21:29,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:29,586 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-12-02 20:21:29,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 20:21:29,586 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-12-02 20:21:29,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 20:21:29,587 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:29,587 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:21:29,587 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION]=== [2018-12-02 20:21:29,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:29,587 INFO L82 PathProgramCache]: Analyzing trace with hash -299929109, now seen corresponding path program 1 times [2018-12-02 20:21:29,587 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:21:29,587 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:21:29,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:29,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:29,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:29,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:29,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:29,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 20:21:29,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 20:21:29,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 20:21:29,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-02 20:21:29,644 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 7 states. [2018-12-02 20:21:29,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:29,711 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-12-02 20:21:29,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 20:21:29,712 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-12-02 20:21:29,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:29,712 INFO L225 Difference]: With dead ends: 43 [2018-12-02 20:21:29,712 INFO L226 Difference]: Without dead ends: 43 [2018-12-02 20:21:29,713 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 [2018-12-02 20:21:29,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-02 20:21:29,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-02 20:21:29,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-02 20:21:29,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-12-02 20:21:29,715 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 11 [2018-12-02 20:21:29,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:29,715 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-12-02 20:21:29,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 20:21:29,715 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-12-02 20:21:29,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 20:21:29,716 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:29,716 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:21:29,716 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION]=== [2018-12-02 20:21:29,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:29,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726730, now seen corresponding path program 1 times [2018-12-02 20:21:29,716 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:21:29,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:21:29,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:29,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:29,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:29,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:29,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:29,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 20:21:29,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 20:21:29,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 20:21:29,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 20:21:29,752 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 7 states. [2018-12-02 20:21:29,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:29,832 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-12-02 20:21:29,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 20:21:29,832 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-12-02 20:21:29,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:29,832 INFO L225 Difference]: With dead ends: 47 [2018-12-02 20:21:29,833 INFO L226 Difference]: Without dead ends: 47 [2018-12-02 20:21:29,833 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 [2018-12-02 20:21:29,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-02 20:21:29,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2018-12-02 20:21:29,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-02 20:21:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-12-02 20:21:29,836 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 16 [2018-12-02 20:21:29,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:29,836 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-12-02 20:21:29,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 20:21:29,836 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-12-02 20:21:29,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 20:21:29,836 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:29,837 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:21:29,837 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION]=== [2018-12-02 20:21:29,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:29,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726731, now seen corresponding path program 1 times [2018-12-02 20:21:29,837 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:21:29,837 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:21:29,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:29,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:29,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:29,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:29,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 20:21:29,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 20:21:29,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 20:21:29,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-02 20:21:29,915 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2018-12-02 20:21:29,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:29,982 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-02 20:21:29,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 20:21:29,982 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-12-02 20:21:29,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:29,983 INFO L225 Difference]: With dead ends: 37 [2018-12-02 20:21:29,983 INFO L226 Difference]: Without dead ends: 37 [2018-12-02 20:21:29,983 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 [2018-12-02 20:21:29,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-02 20:21:29,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-02 20:21:29,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-02 20:21:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-12-02 20:21:29,985 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 16 [2018-12-02 20:21:29,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:29,985 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-12-02 20:21:29,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 20:21:29,986 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-12-02 20:21:29,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 20:21:29,986 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:29,986 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] [2018-12-02 20:21:29,986 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION]=== [2018-12-02 20:21:29,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:29,986 INFO L82 PathProgramCache]: Analyzing trace with hash 362195120, now seen corresponding path program 1 times [2018-12-02 20:21:29,987 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:21:29,987 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:21:29,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:29,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:29,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:30,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:30,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:30,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 20:21:30,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 20:21:30,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 20:21:30,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 20:21:30,058 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 10 states. [2018-12-02 20:21:30,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:30,145 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-12-02 20:21:30,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 20:21:30,146 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-12-02 20:21:30,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:30,146 INFO L225 Difference]: With dead ends: 36 [2018-12-02 20:21:30,146 INFO L226 Difference]: Without dead ends: 36 [2018-12-02 20:21:30,146 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 [2018-12-02 20:21:30,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-02 20:21:30,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-12-02 20:21:30,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-02 20:21:30,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-12-02 20:21:30,148 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 21 [2018-12-02 20:21:30,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:30,148 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-12-02 20:21:30,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 20:21:30,149 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-12-02 20:21:30,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 20:21:30,149 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:30,149 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] [2018-12-02 20:21:30,149 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION]=== [2018-12-02 20:21:30,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:30,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1656853106, now seen corresponding path program 1 times [2018-12-02 20:21:30,150 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:21:30,150 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:21:30,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:30,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:30,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:30,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:30,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:30,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 20:21:30,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 20:21:30,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 20:21:30,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 20:21:30,237 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 10 states. [2018-12-02 20:21:30,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:30,346 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-12-02 20:21:30,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 20:21:30,346 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-12-02 20:21:30,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:30,348 INFO L225 Difference]: With dead ends: 38 [2018-12-02 20:21:30,348 INFO L226 Difference]: Without dead ends: 38 [2018-12-02 20:21:30,348 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 [2018-12-02 20:21:30,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-02 20:21:30,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-12-02 20:21:30,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-02 20:21:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-12-02 20:21:30,350 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 22 [2018-12-02 20:21:30,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:30,351 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-12-02 20:21:30,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 20:21:30,351 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-12-02 20:21:30,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 20:21:30,351 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:30,351 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] [2018-12-02 20:21:30,351 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION]=== [2018-12-02 20:21:30,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:30,352 INFO L82 PathProgramCache]: Analyzing trace with hash 177161330, now seen corresponding path program 1 times [2018-12-02 20:21:30,352 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:21:30,352 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:21:30,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:30,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:30,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:30,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:30,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 20:21:30,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 20:21:30,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 20:21:30,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 20:21:30,375 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 4 states. [2018-12-02 20:21:30,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:30,386 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-02 20:21:30,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 20:21:30,386 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-12-02 20:21:30,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:30,386 INFO L225 Difference]: With dead ends: 37 [2018-12-02 20:21:30,386 INFO L226 Difference]: Without dead ends: 37 [2018-12-02 20:21:30,387 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 [2018-12-02 20:21:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-02 20:21:30,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-12-02 20:21:30,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-02 20:21:30,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-12-02 20:21:30,389 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 23 [2018-12-02 20:21:30,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:30,390 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-12-02 20:21:30,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 20:21:30,390 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-12-02 20:21:30,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:21:30,390 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:30,390 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] [2018-12-02 20:21:30,391 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION]=== [2018-12-02 20:21:30,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:30,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1197034000, now seen corresponding path program 1 times [2018-12-02 20:21:30,391 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:21:30,391 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:21:30,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:30,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:30,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:30,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:30,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:30,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-12-02 20:21:30,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-02 20:21:30,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-02 20:21:30,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2018-12-02 20:21:30,602 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 15 states. [2018-12-02 20:21:30,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:30,781 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-12-02 20:21:30,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-02 20:21:30,781 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2018-12-02 20:21:30,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:30,782 INFO L225 Difference]: With dead ends: 27 [2018-12-02 20:21:30,782 INFO L226 Difference]: Without dead ends: 27 [2018-12-02 20:21:30,782 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 [2018-12-02 20:21:30,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-02 20:21:30,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-02 20:21:30,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-02 20:21:30,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-12-02 20:21:30,783 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 24 [2018-12-02 20:21:30,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:30,783 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-12-02 20:21:30,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-02 20:21:30,784 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-12-02 20:21:30,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:21:30,784 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:30,784 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] [2018-12-02 20:21:30,784 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION]=== [2018-12-02 20:21:30,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:30,784 INFO L82 PathProgramCache]: Analyzing trace with hash -119633917, now seen corresponding path program 1 times [2018-12-02 20:21:30,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:21:30,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:21:30,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:30,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:30,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:21:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:21:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:21:30,811 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 20:21:30,819 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-02 20:21:30,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:21:30 BoogieIcfgContainer [2018-12-02 20:21:30,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 20:21:30,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 20:21:30,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 20:21:30,828 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 20:21:30,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:29" (3/4) ... [2018-12-02 20:21:30,831 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 20:21:30,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 20:21:30,831 INFO L168 Benchmark]: Toolchain (without parser) took 2199.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.0 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-12-02 20:21:30,832 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. [2018-12-02 20:21:30,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -153.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-12-02 20:21:30,833 INFO L168 Benchmark]: Boogie Preprocessor took 26.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-02 20:21:30,833 INFO L168 Benchmark]: RCFGBuilder took 256.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. [2018-12-02 20:21:30,833 INFO L168 Benchmark]: TraceAbstraction took 1668.46 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -73.5 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2018-12-02 20:21:30,834 INFO L168 Benchmark]: Witness Printer took 2.92 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. [2018-12-02 20:21:30,835 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 242.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -153.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 256.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1668.46 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -73.5 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.92 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, 1.6s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 252 SDtfs, 196 SDslu, 711 SDs, 0 SdLazy, 839 SolverSat, 67 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s 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 0.1.23-635dfa2 [2018-12-02 20:21:32,161 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 20:21:32,162 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 20:21:32,168 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 20:21:32,168 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 20:21:32,169 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 20:21:32,169 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 20:21:32,171 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 20:21:32,172 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 20:21:32,172 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 20:21:32,173 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 20:21:32,173 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 20:21:32,174 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 20:21:32,174 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 20:21:32,175 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 20:21:32,176 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 20:21:32,176 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 20:21:32,177 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 20:21:32,178 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 20:21:32,179 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 20:21:32,180 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 20:21:32,181 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 20:21:32,182 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 20:21:32,182 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 20:21:32,182 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 20:21:32,183 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 20:21:32,184 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 20:21:32,184 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 20:21:32,184 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 20:21:32,185 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 20:21:32,185 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 20:21:32,186 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 20:21:32,186 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 20:21:32,186 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 20:21:32,187 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 20:21:32,187 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 20:21:32,187 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-12-02 20:21:32,197 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 20:21:32,197 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 20:21:32,198 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 20:21:32,198 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 20:21:32,198 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 20:21:32,199 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 20:21:32,199 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 20:21:32,199 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 20:21:32,199 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 20:21:32,199 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 20:21:32,199 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 20:21:32,199 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 20:21:32,199 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 20:21:32,199 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 20:21:32,199 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 20:21:32,199 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 20:21:32,200 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 20:21:32,200 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 20:21:32,200 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 20:21:32,200 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 20:21:32,200 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 20:21:32,200 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 20:21:32,200 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 20:21:32,200 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 20:21:32,200 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 20:21:32,200 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 20:21:32,200 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 20:21:32,201 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 20:21:32,201 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 20:21:32,201 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 20:21:32,201 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 20:21:32,201 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_b0847fd1-ca06-4301-8b8c-22daac5dbadc/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 [2018-12-02 20:21:32,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 20:21:32,229 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 20:21:32,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 20:21:32,232 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 20:21:32,233 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 20:21:32,233 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-12-02 20:21:32,275 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/data/a1f28732b/1cf4579b64b64d9b9d92f85d8cac7ea3/FLAG80f9d3f69 [2018-12-02 20:21:32,618 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 20:21:32,619 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-12-02 20:21:32,627 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/data/a1f28732b/1cf4579b64b64d9b9d92f85d8cac7ea3/FLAG80f9d3f69 [2018-12-02 20:21:32,637 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/data/a1f28732b/1cf4579b64b64d9b9d92f85d8cac7ea3 [2018-12-02 20:21:32,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 20:21:32,640 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-02 20:21:32,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 20:21:32,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 20:21:32,644 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 20:21:32,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:32" (1/1) ... [2018-12-02 20:21:32,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ce108b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:32, skipping insertion in model container [2018-12-02 20:21:32,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:32" (1/1) ... [2018-12-02 20:21:32,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 20:21:32,675 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 20:21:32,820 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:21:32,826 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 20:21:32,853 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:21:32,921 INFO L195 MainTranslator]: Completed translation [2018-12-02 20:21:32,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:32 WrapperNode [2018-12-02 20:21:32,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 20:21:32,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 20:21:32,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 20:21:32,922 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 20:21:32,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:32" (1/1) ... [2018-12-02 20:21:32,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:32" (1/1) ... [2018-12-02 20:21:32,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:32" (1/1) ... [2018-12-02 20:21:32,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:32" (1/1) ... [2018-12-02 20:21:32,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:32" (1/1) ... [2018-12-02 20:21:32,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:32" (1/1) ... [2018-12-02 20:21:32,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:32" (1/1) ... [2018-12-02 20:21:32,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 20:21:32,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 20:21:32,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 20:21:32,953 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 20:21:32,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 20:21:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 20:21:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 20:21:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-12-02 20:21:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2018-12-02 20:21:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 20:21:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-02 20:21:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-02 20:21:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-02 20:21:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-02 20:21:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-02 20:21:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-02 20:21:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-02 20:21:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-02 20:21:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-02 20:21:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-02 20:21:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-02 20:21:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-02 20:21:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-02 20:21:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-02 20:21:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-02 20:21:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-02 20:21:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-02 20:21:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-02 20:21:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-02 20:21:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-02 20:21:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-02 20:21:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-02 20:21:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-02 20:21:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-02 20:21:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-02 20:21:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-02 20:21:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-02 20:21:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-02 20:21:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-02 20:21:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-02 20:21:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-02 20:21:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-02 20:21:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-02 20:21:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-02 20:21:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-02 20:21:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-02 20:21:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-02 20:21:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-02 20:21:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-02 20:21:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2018-12-02 20:21:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 20:21:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 20:21:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2018-12-02 20:21:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 20:21:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 20:21:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 20:21:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 20:21:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 20:21:33,250 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 20:21:33,251 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 20:21:33,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:33 BoogieIcfgContainer [2018-12-02 20:21:33,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 20:21:33,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 20:21:33,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 20:21:33,253 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 20:21:33,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:21:32" (1/3) ... [2018-12-02 20:21:33,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac8d4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:21:33, skipping insertion in model container [2018-12-02 20:21:33,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:32" (2/3) ... [2018-12-02 20:21:33,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac8d4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:21:33, skipping insertion in model container [2018-12-02 20:21:33,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:33" (3/3) ... [2018-12-02 20:21:33,255 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0019_false-valid-memtrack_true-termination.i [2018-12-02 20:21:33,261 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 20:21:33,265 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-12-02 20:21:33,274 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-12-02 20:21:33,289 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 20:21:33,290 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 20:21:33,290 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-02 20:21:33,290 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 20:21:33,290 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 20:21:33,290 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 20:21:33,290 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 20:21:33,291 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 20:21:33,291 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 20:21:33,301 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-02 20:21:33,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 20:21:33,306 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:33,307 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:21:33,308 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-12-02 20:21:33,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:33,312 INFO L82 PathProgramCache]: Analyzing trace with hash -795841943, now seen corresponding path program 1 times [2018-12-02 20:21:33,314 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 20:21:33,314 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 20:21:33,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:33,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:21:33,391 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 [2018-12-02 20:21:33,392 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,396 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,397 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-02 20:21:33,413 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 [2018-12-02 20:21:33,413 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,418 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 20:21:33,418 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-12-02 20:21:33,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:33,428 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:21:33,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:33,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 20:21:33,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 20:21:33,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 20:21:33,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 20:21:33,443 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 5 states. [2018-12-02 20:21:33,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:33,564 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-12-02 20:21:33,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 20:21:33,565 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-02 20:21:33,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:33,571 INFO L225 Difference]: With dead ends: 48 [2018-12-02 20:21:33,571 INFO L226 Difference]: Without dead ends: 45 [2018-12-02 20:21:33,572 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 [2018-12-02 20:21:33,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-02 20:21:33,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-12-02 20:21:33,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-02 20:21:33,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-12-02 20:21:33,592 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 9 [2018-12-02 20:21:33,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:33,593 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-12-02 20:21:33,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 20:21:33,593 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-12-02 20:21:33,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 20:21:33,593 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:33,593 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:21:33,594 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-12-02 20:21:33,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:33,594 INFO L82 PathProgramCache]: Analyzing trace with hash -795841942, now seen corresponding path program 1 times [2018-12-02 20:21:33,594 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 20:21:33,594 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 20:21:33,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:33,631 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:21:33,635 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 [2018-12-02 20:21:33,635 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,643 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 [2018-12-02 20:21:33,643 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,648 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,649 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-02 20:21:33,675 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:33,677 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:33,678 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-02 20:21:33,679 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,693 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:33,694 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:33,695 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 [2018-12-02 20:21:33,695 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,702 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 20:21:33,703 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-12-02 20:21:33,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:33,716 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:21:33,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:33,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 20:21:33,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 20:21:33,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 20:21:33,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 20:21:33,719 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 5 states. [2018-12-02 20:21:33,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:33,859 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-12-02 20:21:33,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 20:21:33,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-02 20:21:33,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:33,860 INFO L225 Difference]: With dead ends: 44 [2018-12-02 20:21:33,860 INFO L226 Difference]: Without dead ends: 44 [2018-12-02 20:21:33,861 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 [2018-12-02 20:21:33,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-02 20:21:33,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-02 20:21:33,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-02 20:21:33,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-12-02 20:21:33,865 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 9 [2018-12-02 20:21:33,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:33,865 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-12-02 20:21:33,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 20:21:33,865 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-12-02 20:21:33,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 20:21:33,866 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:33,866 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:21:33,866 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-12-02 20:21:33,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:33,866 INFO L82 PathProgramCache]: Analyzing trace with hash -299929109, now seen corresponding path program 1 times [2018-12-02 20:21:33,867 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 20:21:33,867 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/bin-2019/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 20:21:33,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:33,918 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:21:33,922 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 [2018-12-02 20:21:33,923 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,929 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 [2018-12-02 20:21:33,929 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,935 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,935 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-02 20:21:33,959 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:33,961 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:33,962 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-02 20:21:33,962 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,976 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:33,977 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:33,978 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 [2018-12-02 20:21:33,978 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:33,987 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 20:21:33,987 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:14 [2018-12-02 20:21:34,037 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:34,039 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:34,039 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 [2018-12-02 20:21:34,040 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:34,056 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:34,058 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:34,060 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:34,061 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:34,070 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 [2018-12-02 20:21:34,071 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-12-02 20:21:34,113 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. [2018-12-02 20:21:34,113 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:34 [2018-12-02 20:21:34,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:34,141 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:21:34,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:34,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 20:21:34,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 20:21:34,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 20:21:34,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 20:21:34,143 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 7 states. [2018-12-02 20:21:34,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:34,320 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-12-02 20:21:34,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 20:21:34,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-12-02 20:21:34,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:34,321 INFO L225 Difference]: With dead ends: 43 [2018-12-02 20:21:34,321 INFO L226 Difference]: Without dead ends: 43 [2018-12-02 20:21:34,321 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 [2018-12-02 20:21:34,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-02 20:21:34,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-02 20:21:34,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-02 20:21:34,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-12-02 20:21:34,324 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 11 [2018-12-02 20:21:34,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:34,324 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-12-02 20:21:34,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 20:21:34,324 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-12-02 20:21:34,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 20:21:34,324 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:34,324 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:21:34,325 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-12-02 20:21:34,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:34,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726730, now seen corresponding path program 1 times [2018-12-02 20:21:34,325 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 20:21:34,325 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/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 [2018-12-02 20:21:34,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:34,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:21:34,374 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-02 20:21:34,374 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:34,375 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:34,376 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2018-12-02 20:21:34,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:34,400 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:21:34,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:34,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 20:21:34,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 20:21:34,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 20:21:34,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 20:21:34,401 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 7 states. [2018-12-02 20:21:34,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:34,561 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-12-02 20:21:34,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 20:21:34,562 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-12-02 20:21:34,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:34,562 INFO L225 Difference]: With dead ends: 47 [2018-12-02 20:21:34,563 INFO L226 Difference]: Without dead ends: 47 [2018-12-02 20:21:34,563 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 [2018-12-02 20:21:34,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-02 20:21:34,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2018-12-02 20:21:34,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-02 20:21:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-12-02 20:21:34,566 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 16 [2018-12-02 20:21:34,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:34,566 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-12-02 20:21:34,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 20:21:34,566 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-12-02 20:21:34,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 20:21:34,567 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:34,567 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:21:34,567 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-12-02 20:21:34,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:34,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726731, now seen corresponding path program 1 times [2018-12-02 20:21:34,568 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 20:21:34,568 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/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 [2018-12-02 20:21:34,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:34,617 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:21:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:34,691 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:21:34,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:34,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 20:21:34,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 20:21:34,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 20:21:34,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-02 20:21:34,693 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2018-12-02 20:21:35,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:35,015 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-02 20:21:35,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 20:21:35,016 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-12-02 20:21:35,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:35,017 INFO L225 Difference]: With dead ends: 37 [2018-12-02 20:21:35,017 INFO L226 Difference]: Without dead ends: 37 [2018-12-02 20:21:35,018 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-12-02 20:21:35,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-02 20:21:35,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-02 20:21:35,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-02 20:21:35,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-12-02 20:21:35,022 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 16 [2018-12-02 20:21:35,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:35,022 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-12-02 20:21:35,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 20:21:35,023 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-12-02 20:21:35,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 20:21:35,023 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:35,023 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] [2018-12-02 20:21:35,024 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-12-02 20:21:35,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:35,024 INFO L82 PathProgramCache]: Analyzing trace with hash 362195120, now seen corresponding path program 1 times [2018-12-02 20:21:35,024 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 20:21:35,024 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/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 [2018-12-02 20:21:35,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:35,091 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:21:35,112 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 [2018-12-02 20:21:35,114 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 [2018-12-02 20:21:35,114 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,116 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,118 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,118 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-12-02 20:21:35,177 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 [2018-12-02 20:21:35,179 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 [2018-12-02 20:21:35,179 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,180 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,181 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,181 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-12-02 20:21:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:35,214 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:21:35,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:35,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-02 20:21:35,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 20:21:35,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 20:21:35,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-12-02 20:21:35,216 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 12 states. [2018-12-02 20:21:35,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:35,536 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-12-02 20:21:35,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 20:21:35,536 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2018-12-02 20:21:35,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:35,538 INFO L225 Difference]: With dead ends: 38 [2018-12-02 20:21:35,538 INFO L226 Difference]: Without dead ends: 38 [2018-12-02 20:21:35,538 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 [2018-12-02 20:21:35,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-02 20:21:35,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-12-02 20:21:35,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-02 20:21:35,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-12-02 20:21:35,540 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 21 [2018-12-02 20:21:35,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:35,540 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-12-02 20:21:35,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 20:21:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-12-02 20:21:35,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 20:21:35,548 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:35,548 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] [2018-12-02 20:21:35,548 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-12-02 20:21:35,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:35,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1656853106, now seen corresponding path program 1 times [2018-12-02 20:21:35,549 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 20:21:35,549 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/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 [2018-12-02 20:21:35,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:35,607 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:21:35,629 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 [2018-12-02 20:21:35,629 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,635 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,635 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:17 [2018-12-02 20:21:35,652 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 [2018-12-02 20:21:35,655 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 [2018-12-02 20:21:35,655 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,657 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,665 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,665 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2018-12-02 20:21:35,729 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 [2018-12-02 20:21:35,731 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 [2018-12-02 20:21:35,731 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,732 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:35,735 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. [2018-12-02 20:21:35,735 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:15 [2018-12-02 20:21:35,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:35,775 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:21:35,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:35,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-02 20:21:35,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-02 20:21:35,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-02 20:21:35,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-02 20:21:35,777 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 13 states. [2018-12-02 20:21:36,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:36,123 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-02 20:21:36,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-02 20:21:36,123 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 22 [2018-12-02 20:21:36,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:36,123 INFO L225 Difference]: With dead ends: 37 [2018-12-02 20:21:36,123 INFO L226 Difference]: Without dead ends: 37 [2018-12-02 20:21:36,124 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 [2018-12-02 20:21:36,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-02 20:21:36,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-12-02 20:21:36,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-02 20:21:36,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-12-02 20:21:36,125 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 22 [2018-12-02 20:21:36,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:36,125 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-12-02 20:21:36,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-02 20:21:36,125 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-12-02 20:21:36,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:21:36,126 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:36,126 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] [2018-12-02 20:21:36,126 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-12-02 20:21:36,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:36,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1197034000, now seen corresponding path program 1 times [2018-12-02 20:21:36,126 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 20:21:36,126 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/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 [2018-12-02 20:21:36,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:21:36,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:21:36,200 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 [2018-12-02 20:21:36,200 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,207 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-12-02 20:21:36,222 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 [2018-12-02 20:21:36,224 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 [2018-12-02 20:21:36,224 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,226 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,233 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,233 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:16 [2018-12-02 20:21:36,245 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:36,246 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:36,247 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 [2018-12-02 20:21:36,247 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,252 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,253 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:15 [2018-12-02 20:21:36,269 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 [2018-12-02 20:21:36,272 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 20:21:36,273 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 [2018-12-02 20:21:36,273 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,281 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,287 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,288 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:14 [2018-12-02 20:21:36,410 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 [2018-12-02 20:21:36,412 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 [2018-12-02 20:21:36,412 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,414 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,415 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:21:36,415 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:4 [2018-12-02 20:21:36,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:21:36,452 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:21:36,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:21:36,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-12-02 20:21:36,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-02 20:21:36,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-02 20:21:36,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-12-02 20:21:36,455 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 14 states. [2018-12-02 20:21:37,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:21:37,274 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-12-02 20:21:37,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 20:21:37,274 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 24 [2018-12-02 20:21:37,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:21:37,275 INFO L225 Difference]: With dead ends: 27 [2018-12-02 20:21:37,275 INFO L226 Difference]: Without dead ends: 27 [2018-12-02 20:21:37,275 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2018-12-02 20:21:37,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-02 20:21:37,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-02 20:21:37,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-02 20:21:37,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-12-02 20:21:37,276 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 24 [2018-12-02 20:21:37,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:21:37,276 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-12-02 20:21:37,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-02 20:21:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-12-02 20:21:37,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:21:37,277 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:21:37,277 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] [2018-12-02 20:21:37,277 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-12-02 20:21:37,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:21:37,277 INFO L82 PathProgramCache]: Analyzing trace with hash -119633917, now seen corresponding path program 1 times [2018-12-02 20:21:37,277 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 20:21:37,277 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0847fd1-ca06-4301-8b8c-22daac5dbadc/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 [2018-12-02 20:21:37,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:21:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:21:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:21:37,470 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 20:21:37,482 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-02 20:21:37,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:21:37 BoogieIcfgContainer [2018-12-02 20:21:37,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 20:21:37,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 20:21:37,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 20:21:37,490 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 20:21:37,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:33" (3/4) ... [2018-12-02 20:21:37,493 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 20:21:37,493 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 20:21:37,493 INFO L168 Benchmark]: Toolchain (without parser) took 4853.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.1 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -75.2 MB). Peak memory consumption was 131.9 MB. Max. memory is 11.5 GB. [2018-12-02 20:21:37,494 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:21:37,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -194.8 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2018-12-02 20:21:37,495 INFO L168 Benchmark]: Boogie Preprocessor took 30.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-02 20:21:37,495 INFO L168 Benchmark]: RCFGBuilder took 298.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. [2018-12-02 20:21:37,495 INFO L168 Benchmark]: TraceAbstraction took 4238.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.4 MB). Peak memory consumption was 134.0 MB. Max. memory is 11.5 GB. [2018-12-02 20:21:37,495 INFO L168 Benchmark]: Witness Printer took 2.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:21:37,496 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 280.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -194.8 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 298.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4238.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.4 MB). Peak memory consumption was 134.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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, 4.2s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 217 SDtfs, 183 SDslu, 707 SDs, 0 SdLazy, 887 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.4s 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, 0.2s SatisfiabilityAnalysisTime, 1.0s 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...