./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/cmp-freed-ptr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/memsafety/cmp-freed-ptr.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 3444bab46e3acd40907f623c997f9115bc97543a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:34:24,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:34:24,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:34:24,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:34:24,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:34:24,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:34:24,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:34:24,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:34:24,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:34:24,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:34:24,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:34:24,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:34:24,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:34:24,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:34:24,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:34:24,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:34:24,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:34:24,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:34:24,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:34:24,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:34:24,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:34:24,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:34:24,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:34:24,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:34:24,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:34:24,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:34:24,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:34:24,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:34:24,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:34:24,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:34:24,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:34:24,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:34:24,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:34:24,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:34:24,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:34:24,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:34:24,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:34:24,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:34:24,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:34:24,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:34:24,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:34:24,155 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 02:34:24,172 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:34:24,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:34:24,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:34:24,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:34:24,175 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:34:24,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:34:24,176 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:34:24,176 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:34:24,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:34:24,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:34:24,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:34:24,178 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:34:24,178 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:34:24,178 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:34:24,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:34:24,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:34:24,180 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:34:24,180 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:34:24,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:34:24,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:34:24,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:34:24,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:34:24,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:34:24,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:34:24,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:34:24,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:34:24,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:34:24,183 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /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 -> 3444bab46e3acd40907f623c997f9115bc97543a [2019-11-28 02:34:24,474 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:34:24,487 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:34:24,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:34:24,492 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:34:24,492 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:34:24,493 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/cmp-freed-ptr.i [2019-11-28 02:34:24,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56192edb/def0d40caf024f089870101b8bd01aaa/FLAG82c9112d5 [2019-11-28 02:34:25,098 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:34:25,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/cmp-freed-ptr.i [2019-11-28 02:34:25,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56192edb/def0d40caf024f089870101b8bd01aaa/FLAG82c9112d5 [2019-11-28 02:34:25,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56192edb/def0d40caf024f089870101b8bd01aaa [2019-11-28 02:34:25,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:34:25,420 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:34:25,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:34:25,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:34:25,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:34:25,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:34:25" (1/1) ... [2019-11-28 02:34:25,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b7bf631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:25, skipping insertion in model container [2019-11-28 02:34:25,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:34:25" (1/1) ... [2019-11-28 02:34:25,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:34:25,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:34:25,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:34:25,832 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:34:25,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:34:25,936 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:34:25,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:25 WrapperNode [2019-11-28 02:34:25,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:34:25,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:34:25,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:34:25,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:34:25,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:25" (1/1) ... [2019-11-28 02:34:25,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:25" (1/1) ... [2019-11-28 02:34:25,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:25" (1/1) ... [2019-11-28 02:34:25,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:25" (1/1) ... [2019-11-28 02:34:25,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:25" (1/1) ... [2019-11-28 02:34:25,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:25" (1/1) ... [2019-11-28 02:34:26,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:25" (1/1) ... [2019-11-28 02:34:26,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:34:26,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:34:26,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:34:26,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:34:26,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:25" (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 [2019-11-28 02:34:26,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:34:26,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:34:26,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 02:34:26,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 02:34:26,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 02:34:26,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 02:34:26,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 02:34:26,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:34:26,077 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 02:34:26,077 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 02:34:26,078 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 02:34:26,078 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 02:34:26,078 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 02:34:26,078 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 02:34:26,078 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 02:34:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 02:34:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 02:34:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 02:34:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 02:34:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 02:34:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 02:34:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 02:34:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 02:34:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 02:34:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 02:34:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 02:34:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 02:34:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 02:34:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 02:34:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 02:34:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 02:34:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 02:34:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 02:34:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 02:34:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 02:34:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 02:34:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 02:34:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 02:34:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 02:34:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 02:34:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 02:34:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 02:34:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 02:34:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 02:34:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 02:34:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 02:34:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 02:34:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 02:34:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 02:34:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 02:34:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 02:34:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 02:34:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 02:34:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 02:34:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 02:34:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 02:34:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 02:34:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 02:34:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 02:34:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 02:34:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 02:34:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 02:34:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 02:34:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:34:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:34:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 02:34:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:34:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 02:34:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 02:34:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 02:34:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 02:34:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 02:34:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 02:34:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 02:34:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 02:34:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 02:34:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 02:34:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 02:34:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 02:34:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 02:34:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 02:34:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 02:34:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 02:34:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 02:34:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 02:34:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 02:34:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 02:34:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 02:34:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 02:34:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 02:34:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 02:34:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 02:34:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 02:34:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 02:34:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 02:34:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 02:34:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 02:34:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 02:34:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 02:34:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 02:34:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 02:34:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 02:34:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 02:34:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 02:34:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 02:34:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 02:34:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 02:34:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 02:34:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 02:34:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 02:34:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 02:34:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 02:34:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 02:34:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 02:34:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 02:34:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:34:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:34:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:34:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:34:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:34:26,524 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:34:26,524 INFO L297 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-28 02:34:26,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:34:26 BoogieIcfgContainer [2019-11-28 02:34:26,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:34:26,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:34:26,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:34:26,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:34:26,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:34:25" (1/3) ... [2019-11-28 02:34:26,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567221fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:34:26, skipping insertion in model container [2019-11-28 02:34:26,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:25" (2/3) ... [2019-11-28 02:34:26,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567221fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:34:26, skipping insertion in model container [2019-11-28 02:34:26,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:34:26" (3/3) ... [2019-11-28 02:34:26,539 INFO L109 eAbstractionObserver]: Analyzing ICFG cmp-freed-ptr.i [2019-11-28 02:34:26,553 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:34:26,562 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-11-28 02:34:26,576 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-11-28 02:34:26,611 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:34:26,611 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:34:26,612 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:34:26,612 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:34:26,613 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:34:26,614 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:34:26,614 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:34:26,614 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:34:26,643 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-28 02:34:26,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 02:34:26,653 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:26,654 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:26,655 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1ASSERT_VIOLATIONMEMORY_FREE, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:34:26,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:26,663 INFO L82 PathProgramCache]: Analyzing trace with hash 542822380, now seen corresponding path program 1 times [2019-11-28 02:34:26,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:26,673 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082441587] [2019-11-28 02:34:26,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:26,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:34:26,886 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082441587] [2019-11-28 02:34:26,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:26,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:34:26,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406260750] [2019-11-28 02:34:26,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:26,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:26,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:26,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:26,915 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2019-11-28 02:34:27,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:27,046 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-11-28 02:34:27,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:34:27,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 02:34:27,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:27,059 INFO L225 Difference]: With dead ends: 29 [2019-11-28 02:34:27,059 INFO L226 Difference]: Without dead ends: 26 [2019-11-28 02:34:27,061 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:34:27,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-28 02:34:27,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-28 02:34:27,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-28 02:34:27,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-11-28 02:34:27,100 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 7 [2019-11-28 02:34:27,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:27,101 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-11-28 02:34:27,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:27,101 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-11-28 02:34:27,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 02:34:27,103 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:27,103 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:27,104 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1ASSERT_VIOLATIONMEMORY_FREE, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:34:27,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:27,105 INFO L82 PathProgramCache]: Analyzing trace with hash -352375362, now seen corresponding path program 1 times [2019-11-28 02:34:27,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:27,105 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992086384] [2019-11-28 02:34:27,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:27,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:34:27,197 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992086384] [2019-11-28 02:34:27,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:27,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:34:27,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713990324] [2019-11-28 02:34:27,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:27,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:27,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:27,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:27,201 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 4 states. [2019-11-28 02:34:27,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:27,279 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-11-28 02:34:27,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:34:27,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 02:34:27,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:27,282 INFO L225 Difference]: With dead ends: 25 [2019-11-28 02:34:27,282 INFO L226 Difference]: Without dead ends: 25 [2019-11-28 02:34:27,283 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:27,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-28 02:34:27,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-28 02:34:27,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 02:34:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2019-11-28 02:34:27,293 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 8 [2019-11-28 02:34:27,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:27,294 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2019-11-28 02:34:27,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:27,295 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-11-28 02:34:27,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 02:34:27,296 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:27,296 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:27,296 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1ASSERT_VIOLATIONMEMORY_FREE, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:34:27,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:27,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1961265710, now seen corresponding path program 1 times [2019-11-28 02:34:27,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:27,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615992967] [2019-11-28 02:34:27,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:27,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:34:27,392 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615992967] [2019-11-28 02:34:27,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:27,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:34:27,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818945022] [2019-11-28 02:34:27,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:27,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:27,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:27,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:27,395 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 4 states. [2019-11-28 02:34:27,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:27,445 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-11-28 02:34:27,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:34:27,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-28 02:34:27,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:27,447 INFO L225 Difference]: With dead ends: 24 [2019-11-28 02:34:27,448 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 02:34:27,448 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:27,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 02:34:27,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 02:34:27,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 02:34:27,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-11-28 02:34:27,454 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 9 [2019-11-28 02:34:27,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:27,454 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-11-28 02:34:27,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:27,455 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-11-28 02:34:27,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 02:34:27,456 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:27,456 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:27,457 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1ASSERT_VIOLATIONMEMORY_FREE, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:34:27,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:27,457 INFO L82 PathProgramCache]: Analyzing trace with hash -714294128, now seen corresponding path program 1 times [2019-11-28 02:34:27,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:27,458 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015444149] [2019-11-28 02:34:27,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:34:27,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015444149] [2019-11-28 02:34:27,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:27,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:34:27,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930020624] [2019-11-28 02:34:27,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:27,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:27,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:27,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:27,556 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 4 states. [2019-11-28 02:34:27,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:27,606 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-11-28 02:34:27,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:34:27,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 02:34:27,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:27,608 INFO L225 Difference]: With dead ends: 22 [2019-11-28 02:34:27,608 INFO L226 Difference]: Without dead ends: 22 [2019-11-28 02:34:27,609 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:27,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-28 02:34:27,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-28 02:34:27,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-28 02:34:27,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-11-28 02:34:27,617 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 11 [2019-11-28 02:34:27,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:27,617 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2019-11-28 02:34:27,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:27,618 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-11-28 02:34:27,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 02:34:27,619 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:27,619 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:27,620 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1ASSERT_VIOLATIONMEMORY_FREE, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:34:27,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:27,621 INFO L82 PathProgramCache]: Analyzing trace with hash -668281437, now seen corresponding path program 1 times [2019-11-28 02:34:27,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:27,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849808081] [2019-11-28 02:34:27,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:27,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:34:27,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849808081] [2019-11-28 02:34:27,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:27,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 02:34:27,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910023984] [2019-11-28 02:34:27,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 02:34:27,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:27,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 02:34:27,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:34:27,789 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 8 states. [2019-11-28 02:34:27,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:27,880 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-11-28 02:34:27,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:34:27,881 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-11-28 02:34:27,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:27,882 INFO L225 Difference]: With dead ends: 20 [2019-11-28 02:34:27,882 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 02:34:27,883 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-28 02:34:27,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 02:34:27,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-28 02:34:27,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-28 02:34:27,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-11-28 02:34:27,887 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 12 [2019-11-28 02:34:27,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:27,888 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-11-28 02:34:27,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 02:34:27,888 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-11-28 02:34:27,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 02:34:27,889 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:27,889 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:27,890 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1ASSERT_VIOLATIONMEMORY_FREE, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:34:27,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:27,890 INFO L82 PathProgramCache]: Analyzing trace with hash 758111986, now seen corresponding path program 1 times [2019-11-28 02:34:27,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:27,891 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40736418] [2019-11-28 02:34:27,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:34:27,942 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40736418] [2019-11-28 02:34:27,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:27,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:34:27,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849435529] [2019-11-28 02:34:27,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:34:27,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:27,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:34:27,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:27,945 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 4 states. [2019-11-28 02:34:28,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:28,007 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-11-28 02:34:28,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:34:28,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-28 02:34:28,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:28,009 INFO L225 Difference]: With dead ends: 22 [2019-11-28 02:34:28,009 INFO L226 Difference]: Without dead ends: 22 [2019-11-28 02:34:28,010 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:34:28,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-28 02:34:28,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-28 02:34:28,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-28 02:34:28,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-11-28 02:34:28,018 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2019-11-28 02:34:28,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:28,019 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2019-11-28 02:34:28,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:34:28,020 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-11-28 02:34:28,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 02:34:28,021 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:28,021 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:28,022 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1ASSERT_VIOLATIONMEMORY_FREE, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:34:28,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:28,022 INFO L82 PathProgramCache]: Analyzing trace with hash 2034300366, now seen corresponding path program 1 times [2019-11-28 02:34:28,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:28,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658127465] [2019-11-28 02:34:28,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:34:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:34:28,179 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658127465] [2019-11-28 02:34:28,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:34:28,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 02:34:28,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363964937] [2019-11-28 02:34:28,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:34:28,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:34:28,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:34:28,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:34:28,185 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 6 states. [2019-11-28 02:34:28,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:34:28,250 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-11-28 02:34:28,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 02:34:28,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-28 02:34:28,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:34:28,251 INFO L225 Difference]: With dead ends: 21 [2019-11-28 02:34:28,251 INFO L226 Difference]: Without dead ends: 17 [2019-11-28 02:34:28,252 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:34:28,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-28 02:34:28,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-28 02:34:28,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 02:34:28,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2019-11-28 02:34:28,255 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 14 [2019-11-28 02:34:28,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:34:28,256 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2019-11-28 02:34:28,256 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:34:28,256 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2019-11-28 02:34:28,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 02:34:28,257 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:34:28,257 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:34:28,258 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr1ASSERT_VIOLATIONMEMORY_FREE, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 02:34:28,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:34:28,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1976190218, now seen corresponding path program 1 times [2019-11-28 02:34:28,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:34:28,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729672018] [2019-11-28 02:34:28,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:34:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:34:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:34:28,338 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:34:28,339 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:34:28,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:34:28 BoogieIcfgContainer [2019-11-28 02:34:28,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:34:28,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:34:28,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:34:28,378 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:34:28,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:34:26" (3/4) ... [2019-11-28 02:34:28,380 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 02:34:28,427 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:34:28,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:34:28,429 INFO L168 Benchmark]: Toolchain (without parser) took 3008.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 952.3 MB in the beginning and 962.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 141.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:28,430 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:34:28,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:28,432 INFO L168 Benchmark]: Boogie Preprocessor took 67.88 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. [2019-11-28 02:34:28,433 INFO L168 Benchmark]: RCFGBuilder took 518.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:28,433 INFO L168 Benchmark]: TraceAbstraction took 1849.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.2 MB in the end (delta: 126.3 MB). Peak memory consumption was 126.3 MB. Max. memory is 11.5 GB. [2019-11-28 02:34:28,434 INFO L168 Benchmark]: Witness Printer took 49.99 ms. Allocated memory is still 1.2 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:34:28,437 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 517.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.88 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. * RCFGBuilder took 518.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1849.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.2 MB in the end (delta: 126.3 MB). Peak memory consumption was 126.3 MB. Max. memory is 11.5 GB. * Witness Printer took 49.99 ms. Allocated memory is still 1.2 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 554]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L543] struct T* x = ((void *)0); [L544] struct T* y = ((void *)0); [L545] y = malloc(sizeof(*y)) [L546] intptr_t adressY = (intptr_t) y; VAL [adressY=-2, malloc(sizeof(*y))={-2:0}, x={0:0}, y={-2:0}] [L547] free(y) VAL [adressY=-2, malloc(sizeof(*y))={-2:0}, x={0:0}, y={-2:0}] [L547] free(y) VAL [adressY=-2, malloc(sizeof(*y))={-2:0}, x={0:0}, y={-2:0}] [L547] free(y) [L548] x = malloc(sizeof(*x)) [L549] intptr_t adressX = (intptr_t) x; VAL [adressX=-2, adressY=-2, malloc(sizeof(*x))={-2:0}, malloc(sizeof(*y))={-2:0}, x={-2:0}, y={-2:0}] [L550] COND TRUE adressX == adressY VAL [adressX=-2, adressY=-2, malloc(sizeof(*x))={-2:0}, malloc(sizeof(*y))={-2:0}, x={-2:0}, y={-2:0}] [L552] free(x) VAL [adressX=-2, adressY=-2, malloc(sizeof(*x))={-2:0}, malloc(sizeof(*y))={-2:0}, x={-2:0}, y={-2:0}] [L552] free(x) VAL [adressX=-2, adressY=-2, malloc(sizeof(*x))={-2:0}, malloc(sizeof(*y))={-2:0}, x={-2:0}, y={-2:0}] [L552] free(x) [L554] free(x) VAL [adressX=-2, adressY=-2, malloc(sizeof(*x))={-2:0}, malloc(sizeof(*y))={-2:0}, x={-2:0}, y={-2:0}] [L554] free(x) VAL [adressX=-2, adressY=-2, malloc(sizeof(*x))={-2:0}, malloc(sizeof(*y))={-2:0}, x={-2:0}, y={-2:0}] [L554] free(x) VAL [adressX=-2, adressY=-2, malloc(sizeof(*x))={-2:0}, malloc(sizeof(*y))={-2:0}, x={-2:0}, y={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 45 locations, 10 error locations. Result: UNSAFE, OverallTime: 1.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 108 SDtfs, 111 SDslu, 84 SDs, 0 SdLazy, 219 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 2654 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...