./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/memsafety/test-0019_false-valid-memtrack_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/memsafety/test-0019_false-valid-memtrack_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/memsafety/test-0019_false-valid-memtrack_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.1.24-91b1670 [2018-11-28 22:45:34,008 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:45:34,012 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:45:34,025 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:45:34,027 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:45:34,028 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:45:34,030 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:45:34,033 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:45:34,035 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:45:34,036 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:45:34,037 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:45:34,040 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:45:34,041 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:45:34,042 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:45:34,045 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:45:34,046 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:45:34,046 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:45:34,048 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:45:34,050 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:45:34,052 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:45:34,053 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:45:34,054 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:45:34,056 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:45:34,057 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:45:34,057 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:45:34,058 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:45:34,059 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:45:34,059 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:45:34,060 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:45:34,061 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:45:34,062 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:45:34,062 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:45:34,062 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:45:34,063 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:45:34,064 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:45:34,064 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:45:34,065 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:45:34,090 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:45:34,090 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:45:34,091 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:45:34,091 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:45:34,095 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:45:34,095 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:45:34,096 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:45:34,096 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:45:34,096 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:45:34,096 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:45:34,096 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:45:34,096 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:45:34,097 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:45:34,097 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:45:34,097 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:45:34,097 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:45:34,097 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:45:34,097 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:45:34,099 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:45:34,099 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:45:34,100 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:45:34,100 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:45:34,100 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:45:34,100 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:45:34,100 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:45:34,100 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:45:34,101 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:45:34,102 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:45:34,102 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e29a7fa8491bc0edf7e32b974ff0e341ea18209 [2018-11-28 22:45:34,137 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:45:34,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:45:34,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:45:34,154 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:45:34,154 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:45:34,155 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-11-28 22:45:34,210 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69d4b6b89/93416b1a067c49f49c4d5be076748508/FLAG7b77871b7 [2018-11-28 22:45:34,674 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:45:34,675 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-11-28 22:45:34,687 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69d4b6b89/93416b1a067c49f49c4d5be076748508/FLAG7b77871b7 [2018-11-28 22:45:34,995 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69d4b6b89/93416b1a067c49f49c4d5be076748508 [2018-11-28 22:45:34,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:45:35,000 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:45:35,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:45:35,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:45:35,005 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:45:35,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:45:34" (1/1) ... [2018-11-28 22:45:35,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31aff6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:35, skipping insertion in model container [2018-11-28 22:45:35,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:45:34" (1/1) ... [2018-11-28 22:45:35,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:45:35,068 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:45:35,465 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:45:35,478 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:45:35,528 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:45:35,597 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:45:35,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:35 WrapperNode [2018-11-28 22:45:35,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:45:35,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:45:35,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:45:35,599 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:45:35,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:35" (1/1) ... [2018-11-28 22:45:35,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:35" (1/1) ... [2018-11-28 22:45:35,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:35" (1/1) ... [2018-11-28 22:45:35,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:35" (1/1) ... [2018-11-28 22:45:35,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:35" (1/1) ... [2018-11-28 22:45:35,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:35" (1/1) ... [2018-11-28 22:45:35,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:35" (1/1) ... [2018-11-28 22:45:35,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:45:35,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:45:35,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:45:35,749 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:45:35,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:45:35,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:45:35,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:45:35,807 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-11-28 22:45:35,807 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2018-11-28 22:45:35,807 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:45:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:45:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:45:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:45:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:45:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:45:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:45:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:45:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:45:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:45:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:45:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:45:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:45:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:45:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:45:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:45:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:45:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:45:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:45:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:45:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:45:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:45:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:45:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:45:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:45:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:45:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:45:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:45:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:45:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:45:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:45:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:45:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:45:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:45:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:45:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:45:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:45:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:45:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:45:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:45:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:45:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:45:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:45:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:45:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:45:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:45:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:45:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:45:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:45:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:45:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:45:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:45:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:45:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:45:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:45:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:45:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:45:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:45:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:45:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:45:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:45:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:45:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:45:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:45:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:45:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:45:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 22:45:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:45:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:45:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:45:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:45:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:45:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:45:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:45:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:45:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:45:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:45:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:45:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:45:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:45:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:45:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:45:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:45:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:45:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:45:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:45:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:45:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:45:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:45:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:45:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:45:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:45:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:45:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:45:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:45:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:45:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:45:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:45:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:45:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:45:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:45:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:45:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:45:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2018-11-28 22:45:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:45:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 22:45:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2018-11-28 22:45:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 22:45:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:45:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:45:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:45:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:45:36,467 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:45:36,467 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 22:45:36,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:36 BoogieIcfgContainer [2018-11-28 22:45:36,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:45:36,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:45:36,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:45:36,472 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:45:36,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:45:34" (1/3) ... [2018-11-28 22:45:36,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6623b9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:45:36, skipping insertion in model container [2018-11-28 22:45:36,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:35" (2/3) ... [2018-11-28 22:45:36,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6623b9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:45:36, skipping insertion in model container [2018-11-28 22:45:36,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:36" (3/3) ... [2018-11-28 22:45:36,475 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0019_false-valid-memtrack_true-termination.i [2018-11-28 22:45:36,485 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:45:36,494 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-11-28 22:45:36,510 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-11-28 22:45:36,536 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:45:36,537 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:45:36,537 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:45:36,537 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:45:36,537 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:45:36,538 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:45:36,538 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:45:36,538 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:45:36,538 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:45:36,555 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-28 22:45:36,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 22:45:36,565 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:36,566 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:36,568 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:36,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:36,575 INFO L82 PathProgramCache]: Analyzing trace with hash -795841943, now seen corresponding path program 1 times [2018-11-28 22:45:36,577 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:36,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:36,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:36,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:36,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:36,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:36,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:45:36,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:45:36,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:45:36,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:45:36,870 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 5 states. [2018-11-28 22:45:37,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:37,233 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-11-28 22:45:37,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:45:37,236 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 22:45:37,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:37,245 INFO L225 Difference]: With dead ends: 48 [2018-11-28 22:45:37,245 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 22:45:37,247 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:45:37,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 22:45:37,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-28 22:45:37,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 22:45:37,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-11-28 22:45:37,284 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 9 [2018-11-28 22:45:37,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:37,284 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-11-28 22:45:37,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:45:37,285 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-11-28 22:45:37,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 22:45:37,285 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:37,285 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:37,286 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:37,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:37,286 INFO L82 PathProgramCache]: Analyzing trace with hash -795841942, now seen corresponding path program 1 times [2018-11-28 22:45:37,287 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:37,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:37,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:37,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:37,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:37,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:37,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:37,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:45:37,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:45:37,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:45:37,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:45:37,413 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 5 states. [2018-11-28 22:45:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:37,989 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-11-28 22:45:37,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:45:37,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 22:45:37,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:37,991 INFO L225 Difference]: With dead ends: 44 [2018-11-28 22:45:37,992 INFO L226 Difference]: Without dead ends: 44 [2018-11-28 22:45:37,994 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:45:37,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-28 22:45:37,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-28 22:45:37,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-28 22:45:38,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-11-28 22:45:38,001 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 9 [2018-11-28 22:45:38,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:38,002 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-11-28 22:45:38,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:45:38,002 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-11-28 22:45:38,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 22:45:38,002 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:38,002 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:38,003 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:38,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:38,003 INFO L82 PathProgramCache]: Analyzing trace with hash -299929109, now seen corresponding path program 1 times [2018-11-28 22:45:38,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:38,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:38,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:38,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:38,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:38,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:38,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:38,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:45:38,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 22:45:38,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 22:45:38,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:45:38,203 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 7 states. [2018-11-28 22:45:38,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:38,415 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-11-28 22:45:38,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:45:38,416 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-11-28 22:45:38,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:38,417 INFO L225 Difference]: With dead ends: 43 [2018-11-28 22:45:38,417 INFO L226 Difference]: Without dead ends: 43 [2018-11-28 22:45:38,418 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:45:38,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-28 22:45:38,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-28 22:45:38,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 22:45:38,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-11-28 22:45:38,424 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 11 [2018-11-28 22:45:38,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:38,425 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-11-28 22:45:38,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 22:45:38,425 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-11-28 22:45:38,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 22:45:38,426 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:38,426 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:38,426 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:38,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:38,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726730, now seen corresponding path program 1 times [2018-11-28 22:45:38,427 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:38,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:38,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:38,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:38,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:38,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:38,531 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:45:38,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 22:45:38,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 22:45:38,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:45:38,533 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 7 states. [2018-11-28 22:45:38,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:38,744 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-11-28 22:45:38,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 22:45:38,745 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-11-28 22:45:38,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:38,747 INFO L225 Difference]: With dead ends: 47 [2018-11-28 22:45:38,747 INFO L226 Difference]: Without dead ends: 47 [2018-11-28 22:45:38,748 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-28 22:45:38,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-28 22:45:38,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2018-11-28 22:45:38,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 22:45:38,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-11-28 22:45:38,755 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 16 [2018-11-28 22:45:38,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:38,755 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-11-28 22:45:38,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 22:45:38,755 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-11-28 22:45:38,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 22:45:38,756 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:38,756 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:38,756 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:38,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:38,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726731, now seen corresponding path program 1 times [2018-11-28 22:45:38,757 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:38,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:38,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:38,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:38,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:38,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:38,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:38,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 22:45:38,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 22:45:38,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 22:45:38,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:45:38,954 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2018-11-28 22:45:39,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:39,101 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-28 22:45:39,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 22:45:39,102 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-11-28 22:45:39,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:39,103 INFO L225 Difference]: With dead ends: 37 [2018-11-28 22:45:39,103 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 22:45:39,105 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-28 22:45:39,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 22:45:39,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-28 22:45:39,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 22:45:39,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-11-28 22:45:39,110 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 16 [2018-11-28 22:45:39,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:39,110 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-11-28 22:45:39,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 22:45:39,112 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-11-28 22:45:39,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 22:45:39,112 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:39,113 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:39,113 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:39,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:39,114 INFO L82 PathProgramCache]: Analyzing trace with hash 362195120, now seen corresponding path program 1 times [2018-11-28 22:45:39,114 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:39,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:39,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:39,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:39,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:39,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:39,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 22:45:39,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 22:45:39,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 22:45:39,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 22:45:39,329 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 10 states. [2018-11-28 22:45:39,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:39,587 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-11-28 22:45:39,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 22:45:39,588 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-11-28 22:45:39,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:39,589 INFO L225 Difference]: With dead ends: 36 [2018-11-28 22:45:39,589 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 22:45:39,590 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-11-28 22:45:39,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 22:45:39,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-28 22:45:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 22:45:39,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-11-28 22:45:39,597 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 21 [2018-11-28 22:45:39,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:39,597 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-11-28 22:45:39,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 22:45:39,598 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-11-28 22:45:39,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 22:45:39,598 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:39,599 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:39,599 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:39,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:39,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1656853106, now seen corresponding path program 1 times [2018-11-28 22:45:39,600 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:39,600 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:39,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:39,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:39,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:39,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:39,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:39,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 22:45:39,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 22:45:39,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 22:45:39,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 22:45:39,824 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 10 states. [2018-11-28 22:45:40,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:40,268 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-11-28 22:45:40,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 22:45:40,269 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-11-28 22:45:40,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:40,272 INFO L225 Difference]: With dead ends: 38 [2018-11-28 22:45:40,272 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 22:45:40,273 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-11-28 22:45:40,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 22:45:40,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-11-28 22:45:40,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 22:45:40,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-11-28 22:45:40,280 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 22 [2018-11-28 22:45:40,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:40,280 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-11-28 22:45:40,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 22:45:40,280 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-11-28 22:45:40,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 22:45:40,284 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:40,284 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:40,285 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:40,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:40,285 INFO L82 PathProgramCache]: Analyzing trace with hash 177161330, now seen corresponding path program 1 times [2018-11-28 22:45:40,285 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:40,285 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:40,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:40,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:40,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:40,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:40,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:40,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 22:45:40,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 22:45:40,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 22:45:40,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:45:40,336 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 4 states. [2018-11-28 22:45:40,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:40,360 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-28 22:45:40,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 22:45:40,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-11-28 22:45:40,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:40,363 INFO L225 Difference]: With dead ends: 37 [2018-11-28 22:45:40,363 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 22:45:40,363 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:45:40,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 22:45:40,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-11-28 22:45:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 22:45:40,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-11-28 22:45:40,367 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 23 [2018-11-28 22:45:40,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:40,367 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-11-28 22:45:40,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 22:45:40,367 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-11-28 22:45:40,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 22:45:40,368 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:40,368 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:40,368 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:40,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:40,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1197034000, now seen corresponding path program 1 times [2018-11-28 22:45:40,369 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:40,369 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:40,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:40,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:40,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:40,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:40,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-28 22:45:40,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-28 22:45:40,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-28 22:45:40,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2018-11-28 22:45:40,750 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 15 states. [2018-11-28 22:45:41,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:41,702 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-11-28 22:45:41,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-28 22:45:41,703 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2018-11-28 22:45:41,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:41,704 INFO L225 Difference]: With dead ends: 27 [2018-11-28 22:45:41,704 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 22:45:41,705 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2018-11-28 22:45:41,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 22:45:41,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 22:45:41,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 22:45:41,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-11-28 22:45:41,708 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 24 [2018-11-28 22:45:41,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:41,709 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-11-28 22:45:41,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-28 22:45:41,709 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-11-28 22:45:41,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 22:45:41,710 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:41,710 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:41,711 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:41,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:41,711 INFO L82 PathProgramCache]: Analyzing trace with hash -119633917, now seen corresponding path program 1 times [2018-11-28 22:45:41,711 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:41,711 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:41,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:41,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:41,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:45:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:45:41,771 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 22:45:41,789 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 22:45:41,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:45:41 BoogieIcfgContainer [2018-11-28 22:45:41,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:45:41,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:45:41,804 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:45:41,805 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:45:41,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:36" (3/4) ... [2018-11-28 22:45:41,809 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 22:45:41,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:45:41,810 INFO L168 Benchmark]: Toolchain (without parser) took 6810.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:41,812 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:45:41,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.76 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 929.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:41,814 INFO L168 Benchmark]: Boogie Preprocessor took 150.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:41,815 INFO L168 Benchmark]: RCFGBuilder took 719.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:41,816 INFO L168 Benchmark]: TraceAbstraction took 5335.47 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -69.5 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:41,817 INFO L168 Benchmark]: Witness Printer took 4.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:45:41,823 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 596.76 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 929.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 150.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 719.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5335.47 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -69.5 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.90 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, 5.2s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 252 SDtfs, 196 SDslu, 711 SDs, 0 SdLazy, 839 SolverSat, 67 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.8s 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, 0.1s SatisfiabilityAnalysisTime, 1.4s 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 0.1.24-91b1670 [2018-11-28 22:45:44,207 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:45:44,209 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:45:44,227 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:45:44,228 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:45:44,229 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:45:44,231 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:45:44,234 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:45:44,236 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:45:44,238 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:45:44,240 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:45:44,241 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:45:44,242 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:45:44,245 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:45:44,254 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:45:44,254 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:45:44,256 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:45:44,257 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:45:44,262 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:45:44,267 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:45:44,268 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:45:44,272 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:45:44,279 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:45:44,279 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:45:44,279 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:45:44,280 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:45:44,281 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:45:44,282 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:45:44,282 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:45:44,284 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:45:44,286 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:45:44,287 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:45:44,287 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:45:44,287 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:45:44,290 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:45:44,292 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:45:44,293 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-11-28 22:45:44,318 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:45:44,319 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:45:44,320 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:45:44,320 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:45:44,322 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:45:44,323 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:45:44,323 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:45:44,323 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:45:44,324 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:45:44,324 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:45:44,325 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:45:44,325 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:45:44,325 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:45:44,325 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:45:44,325 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:45:44,326 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:45:44,326 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:45:44,326 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 22:45:44,326 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 22:45:44,327 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:45:44,327 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:45:44,327 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:45:44,327 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:45:44,327 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:45:44,327 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:45:44,328 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:45:44,328 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:45:44,328 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:45:44,328 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 22:45:44,328 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:45:44,328 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 22:45:44,331 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e29a7fa8491bc0edf7e32b974ff0e341ea18209 [2018-11-28 22:45:44,395 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:45:44,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:45:44,418 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:45:44,420 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:45:44,420 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:45:44,421 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-11-28 22:45:44,478 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e55998bee/6a158de79a3b43ef80823b3f63cf36d5/FLAGb82f7f4ac [2018-11-28 22:45:44,966 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:45:44,967 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-11-28 22:45:44,990 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e55998bee/6a158de79a3b43ef80823b3f63cf36d5/FLAGb82f7f4ac [2018-11-28 22:45:45,255 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e55998bee/6a158de79a3b43ef80823b3f63cf36d5 [2018-11-28 22:45:45,260 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:45:45,261 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:45:45,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:45:45,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:45:45,267 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:45:45,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:45:45" (1/1) ... [2018-11-28 22:45:45,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@940847a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:45, skipping insertion in model container [2018-11-28 22:45:45,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:45:45" (1/1) ... [2018-11-28 22:45:45,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:45:45,338 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:45:45,730 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:45:45,747 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:45:45,817 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:45:45,963 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:45:45,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:45 WrapperNode [2018-11-28 22:45:45,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:45:45,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:45:45,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:45:45,965 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:45:45,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:45" (1/1) ... [2018-11-28 22:45:45,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:45" (1/1) ... [2018-11-28 22:45:46,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:45" (1/1) ... [2018-11-28 22:45:46,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:45" (1/1) ... [2018-11-28 22:45:46,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:45" (1/1) ... [2018-11-28 22:45:46,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:45" (1/1) ... [2018-11-28 22:45:46,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:45" (1/1) ... [2018-11-28 22:45:46,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:45:46,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:45:46,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:45:46,060 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:45:46,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:45:46,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:45:46,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:45:46,128 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-11-28 22:45:46,128 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2018-11-28 22:45:46,128 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:45:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:45:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:45:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:45:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:45:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:45:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:45:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:45:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:45:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:45:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:45:46,132 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:45:46,132 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:45:46,132 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:45:46,134 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:45:46,135 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:45:46,135 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:45:46,135 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:45:46,135 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:45:46,135 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:45:46,135 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:45:46,136 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:45:46,136 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:45:46,136 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:45:46,137 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:45:46,137 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:45:46,137 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:45:46,137 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:45:46,137 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:45:46,137 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:45:46,138 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:45:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:45:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:45:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:45:46,140 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:45:46,140 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:45:46,140 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:45:46,140 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:45:46,141 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:45:46,141 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:45:46,141 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:45:46,141 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:45:46,141 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:45:46,141 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:45:46,142 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:45:46,143 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:45:46,143 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:45:46,143 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:45:46,144 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:45:46,144 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:45:46,144 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:45:46,144 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:45:46,144 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:45:46,144 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:45:46,144 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:45:46,146 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:45:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:45:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:45:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:45:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:45:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:45:46,148 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:45:46,148 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:45:46,148 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:45:46,149 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:45:46,149 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:45:46,149 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 22:45:46,149 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:45:46,149 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:45:46,149 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:45:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:45:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:45:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:45:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:45:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:45:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:45:46,151 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:45:46,152 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:45:46,152 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:45:46,152 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:45:46,152 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:45:46,152 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:45:46,152 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:45:46,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:45:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:45:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:45:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:45:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:45:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:45:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:45:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:45:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:45:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:45:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:45:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:45:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:45:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:45:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:45:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:45:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:45:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:45:46,158 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:45:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:45:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2018-11-28 22:45:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:45:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 22:45:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2018-11-28 22:45:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 22:45:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:45:46,160 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:45:46,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:45:46,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:45:46,879 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:45:46,879 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 22:45:46,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:46 BoogieIcfgContainer [2018-11-28 22:45:46,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:45:46,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:45:46,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:45:46,885 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:45:46,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:45:45" (1/3) ... [2018-11-28 22:45:46,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c19fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:45:46, skipping insertion in model container [2018-11-28 22:45:46,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:45" (2/3) ... [2018-11-28 22:45:46,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c19fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:45:46, skipping insertion in model container [2018-11-28 22:45:46,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:46" (3/3) ... [2018-11-28 22:45:46,888 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0019_false-valid-memtrack_true-termination.i [2018-11-28 22:45:46,897 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:45:46,905 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-11-28 22:45:46,923 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-11-28 22:45:46,950 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:45:46,951 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:45:46,951 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:45:46,951 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:45:46,954 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:45:46,954 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:45:46,954 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:45:46,954 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:45:46,954 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:45:46,971 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-28 22:45:46,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 22:45:46,981 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:46,982 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:46,985 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 22:45:46,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:46,991 INFO L82 PathProgramCache]: Analyzing trace with hash -795841943, now seen corresponding path program 1 times [2018-11-28 22:45:46,996 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:45:46,996 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:45:47,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:47,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:45:47,128 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 22:45:47,131 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:47,143 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:47,144 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-28 22:45:47,215 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-28 22:45:47,216 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:47,231 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 22:45:47,231 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-11-28 22:45:47,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:47,299 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:45:47,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:47,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:45:47,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:45:47,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:45:47,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:45:47,324 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 5 states. [2018-11-28 22:45:47,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:47,700 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-11-28 22:45:47,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:45:47,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 22:45:47,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:47,711 INFO L225 Difference]: With dead ends: 48 [2018-11-28 22:45:47,711 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 22:45:47,713 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:45:47,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 22:45:47,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-28 22:45:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 22:45:47,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-11-28 22:45:47,750 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 9 [2018-11-28 22:45:47,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:47,750 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-11-28 22:45:47,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:45:47,751 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-11-28 22:45:47,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 22:45:47,751 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:47,751 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:47,752 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 22:45:47,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:47,752 INFO L82 PathProgramCache]: Analyzing trace with hash -795841942, now seen corresponding path program 1 times [2018-11-28 22:45:47,753 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:45:47,753 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:45:47,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:47,810 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:45:47,826 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 22:45:47,827 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:47,871 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 22:45:47,872 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:47,961 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:47,961 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 22:45:48,272 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:48,277 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:48,279 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-11-28 22:45:48,280 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:48,512 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:48,538 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:48,540 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-28 22:45:48,540 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:48,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 22:45:48,615 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-11-28 22:45:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:48,639 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:45:48,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:48,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:45:48,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:45:48,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:45:48,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:45:48,646 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 5 states. [2018-11-28 22:45:49,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:49,159 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-11-28 22:45:49,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:45:49,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 22:45:49,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:49,161 INFO L225 Difference]: With dead ends: 44 [2018-11-28 22:45:49,161 INFO L226 Difference]: Without dead ends: 44 [2018-11-28 22:45:49,163 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:45:49,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-28 22:45:49,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-28 22:45:49,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-28 22:45:49,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-11-28 22:45:49,169 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 9 [2018-11-28 22:45:49,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:49,170 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-11-28 22:45:49,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:45:49,170 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-11-28 22:45:49,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 22:45:49,171 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:49,172 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:49,172 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 22:45:49,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:49,172 INFO L82 PathProgramCache]: Analyzing trace with hash -299929109, now seen corresponding path program 1 times [2018-11-28 22:45:49,174 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:45:49,174 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:45:49,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:49,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:45:49,256 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 22:45:49,257 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:49,295 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 22:45:49,296 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:49,310 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:49,310 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 22:45:49,463 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:49,465 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:49,466 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-11-28 22:45:49,467 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:49,495 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:49,521 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:49,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-28 22:45:49,523 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:49,541 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 22:45:49,542 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:14 [2018-11-28 22:45:49,652 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:49,654 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:49,655 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-28 22:45:49,656 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:49,686 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:49,692 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:49,694 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:49,696 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:49,757 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 40 [2018-11-28 22:45:49,760 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-28 22:45:49,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-28 22:45:49,837 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:34 [2018-11-28 22:45:49,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:49,911 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:45:49,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:49,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:45:49,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 22:45:49,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 22:45:49,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:45:49,915 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 7 states. [2018-11-28 22:45:50,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:50,356 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-11-28 22:45:50,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 22:45:50,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-11-28 22:45:50,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:50,359 INFO L225 Difference]: With dead ends: 43 [2018-11-28 22:45:50,360 INFO L226 Difference]: Without dead ends: 43 [2018-11-28 22:45:50,360 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 22:45:50,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-28 22:45:50,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-28 22:45:50,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 22:45:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-11-28 22:45:50,367 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 11 [2018-11-28 22:45:50,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:50,368 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-11-28 22:45:50,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 22:45:50,369 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-11-28 22:45:50,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 22:45:50,369 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:50,369 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:50,370 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 22:45:50,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:50,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726730, now seen corresponding path program 1 times [2018-11-28 22:45:50,372 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:45:50,372 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:45:50,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:50,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:45:50,459 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-28 22:45:50,460 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:50,464 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:50,464 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2018-11-28 22:45:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:50,558 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:45:50,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:50,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:45:50,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 22:45:50,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 22:45:50,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:45:50,563 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 7 states. [2018-11-28 22:45:50,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:50,883 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-11-28 22:45:50,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 22:45:50,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-11-28 22:45:50,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:50,885 INFO L225 Difference]: With dead ends: 47 [2018-11-28 22:45:50,885 INFO L226 Difference]: Without dead ends: 47 [2018-11-28 22:45:50,885 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-28 22:45:50,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-28 22:45:50,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2018-11-28 22:45:50,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 22:45:50,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-11-28 22:45:50,893 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 16 [2018-11-28 22:45:50,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:50,894 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-11-28 22:45:50,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 22:45:50,894 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-11-28 22:45:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 22:45:50,896 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:50,896 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:50,896 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 22:45:50,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:50,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726731, now seen corresponding path program 1 times [2018-11-28 22:45:50,897 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:45:50,897 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:45:50,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:50,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:45:51,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:51,143 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:45:51,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:51,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 22:45:51,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 22:45:51,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 22:45:51,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:45:51,146 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2018-11-28 22:45:51,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:51,469 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-28 22:45:51,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 22:45:51,470 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-11-28 22:45:51,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:51,471 INFO L225 Difference]: With dead ends: 37 [2018-11-28 22:45:51,471 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 22:45:51,473 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-28 22:45:51,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 22:45:51,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-28 22:45:51,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 22:45:51,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-11-28 22:45:51,478 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 16 [2018-11-28 22:45:51,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:51,478 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-11-28 22:45:51,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 22:45:51,479 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-11-28 22:45:51,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 22:45:51,479 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:51,479 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:51,480 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 22:45:51,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:51,481 INFO L82 PathProgramCache]: Analyzing trace with hash 362195120, now seen corresponding path program 1 times [2018-11-28 22:45:51,481 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:45:51,481 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:45:51,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:51,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:45:51,620 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 22:45:51,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-28 22:45:51,629 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:51,632 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:51,637 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:51,638 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-28 22:45:51,771 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-28 22:45:51,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-28 22:45:51,776 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:51,781 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:51,783 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:51,783 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-28 22:45:51,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:51,833 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:45:51,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:51,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 22:45:51,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 22:45:51,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 22:45:51,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-11-28 22:45:51,844 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 12 states. [2018-11-28 22:45:52,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:52,412 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-11-28 22:45:52,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 22:45:52,413 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2018-11-28 22:45:52,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:52,417 INFO L225 Difference]: With dead ends: 38 [2018-11-28 22:45:52,417 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 22:45:52,417 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2018-11-28 22:45:52,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 22:45:52,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-11-28 22:45:52,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 22:45:52,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-11-28 22:45:52,422 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 21 [2018-11-28 22:45:52,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:52,422 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-11-28 22:45:52,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 22:45:52,422 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-11-28 22:45:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 22:45:52,423 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:52,424 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:52,424 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 22:45:52,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:52,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1656853106, now seen corresponding path program 1 times [2018-11-28 22:45:52,424 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:45:52,424 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:45:52,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:52,522 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:45:52,571 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-28 22:45:52,572 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:52,594 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:52,594 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:17 [2018-11-28 22:45:52,623 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 22:45:52,635 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 10 treesize of output 9 [2018-11-28 22:45:52,636 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:52,640 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:52,653 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:52,654 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2018-11-28 22:45:52,778 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-28 22:45:52,782 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-11-28 22:45:52,782 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:52,784 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:52,790 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 22:45:52,790 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:15 [2018-11-28 22:45:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:52,849 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:45:52,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:52,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-28 22:45:52,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 22:45:52,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 22:45:52,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-28 22:45:52,853 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 13 states. [2018-11-28 22:45:53,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:53,511 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-28 22:45:53,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 22:45:53,512 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 22 [2018-11-28 22:45:53,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:53,513 INFO L225 Difference]: With dead ends: 37 [2018-11-28 22:45:53,515 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 22:45:53,516 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2018-11-28 22:45:53,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 22:45:53,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-11-28 22:45:53,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 22:45:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-11-28 22:45:53,522 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 22 [2018-11-28 22:45:53,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:53,523 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-11-28 22:45:53,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 22:45:53,523 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-11-28 22:45:53,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 22:45:53,526 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:53,527 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:53,528 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 22:45:53,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:53,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1197034000, now seen corresponding path program 1 times [2018-11-28 22:45:53,528 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:45:53,528 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:45:53,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:53,653 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:45:53,698 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-28 22:45:53,698 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:53,726 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:53,726 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-28 22:45:53,750 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-28 22:45:53,753 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-28 22:45:53,754 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:53,758 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:53,772 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:53,773 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:16 [2018-11-28 22:45:53,836 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:53,840 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:53,841 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-11-28 22:45:53,842 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:53,855 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:53,855 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:15 [2018-11-28 22:45:53,887 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2018-11-28 22:45:53,891 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:53,892 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-11-28 22:45:53,893 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:53,904 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:53,913 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:53,914 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:14 [2018-11-28 22:45:54,097 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2018-11-28 22:45:54,103 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 4 [2018-11-28 22:45:54,104 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:54,106 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:54,107 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:54,108 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:4 [2018-11-28 22:45:54,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:45:54,159 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:45:54,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:54,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-28 22:45:54,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 22:45:54,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 22:45:54,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-11-28 22:45:54,162 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 14 states. [2018-11-28 22:45:54,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:54,908 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-11-28 22:45:54,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 22:45:54,909 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 24 [2018-11-28 22:45:54,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:54,909 INFO L225 Difference]: With dead ends: 27 [2018-11-28 22:45:54,909 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 22:45:54,911 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 [2018-11-28 22:45:54,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 22:45:54,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 22:45:54,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 22:45:54,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-11-28 22:45:54,914 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 24 [2018-11-28 22:45:54,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:54,915 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-11-28 22:45:54,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 22:45:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-11-28 22:45:54,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 22:45:54,915 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:54,916 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:54,916 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE]=== [2018-11-28 22:45:54,916 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:54,916 INFO L82 PathProgramCache]: Analyzing trace with hash -119633917, now seen corresponding path program 1 times [2018-11-28 22:45:54,916 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:45:54,916 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:45:54,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:45:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:45:55,200 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 22:45:55,239 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 22:45:55,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:45:55 BoogieIcfgContainer [2018-11-28 22:45:55,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:45:55,265 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:45:55,265 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:45:55,266 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:45:55,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:46" (3/4) ... [2018-11-28 22:45:55,273 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 22:45:55,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:45:55,274 INFO L168 Benchmark]: Toolchain (without parser) took 10014.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.6 MB). Free memory was 952.7 MB in the beginning and 1.0 GB in the end (delta: -56.8 MB). Peak memory consumption was 149.7 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:55,278 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:45:55,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:55,279 INFO L168 Benchmark]: Boogie Preprocessor took 95.26 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. [2018-11-28 22:45:55,281 INFO L168 Benchmark]: RCFGBuilder took 820.36 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: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:55,281 INFO L168 Benchmark]: TraceAbstraction took 8383.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.6 MB). Peak memory consumption was 131.7 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:55,284 INFO L168 Benchmark]: Witness Printer took 8.03 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. [2018-11-28 22:45:55,296 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 701.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 95.26 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 820.36 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: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8383.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.6 MB). Peak memory consumption was 131.7 MB. Max. memory is 11.5 GB. * Witness Printer took 8.03 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, 8.3s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 4.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 217 SDtfs, 183 SDslu, 707 SDs, 0 SdLazy, 887 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 2.5s 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 120 ConstructedInterpolants, 4 QuantifiedInterpolants, 14691 SizeOfPredicates, 54 NumberOfNonLiveVariables, 585 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...