./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c 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/list-ext-properties/test-0158_1-1.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 b03be66939377379d1133485be57e118e2bd7c88 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:09:43,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:09:43,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:09:43,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:09:43,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:09:43,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:09:43,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:09:43,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:09:43,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:09:43,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:09:43,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:09:43,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:09:43,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:09:43,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:09:43,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:09:43,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:09:43,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:09:43,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:09:43,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:09:43,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:09:43,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:09:43,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:09:43,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:09:43,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:09:43,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:09:43,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:09:43,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:09:43,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:09:43,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:09:43,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:09:43,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:09:43,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:09:43,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:09:43,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:09:43,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:09:43,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:09:43,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:09:43,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:09:43,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:09:43,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:09:43,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:09:43,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:09:43,224 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:09:43,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:09:43,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:09:43,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:09:43,226 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:09:43,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:09:43,227 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:09:43,227 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:09:43,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:09:43,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:09:43,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:09:43,229 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:09:43,229 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:09:43,230 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:09:43,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:09:43,230 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:09:43,231 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:09:43,231 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:09:43,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:09:43,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:09:43,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:09:43,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:09:43,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:09:43,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:09:43,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:09:43,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:09:43,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:09:43,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:09:43,234 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 -> b03be66939377379d1133485be57e118e2bd7c88 [2019-11-28 20:09:43,527 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:09:43,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:09:43,545 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:09:43,546 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:09:43,547 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:09:43,548 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i [2019-11-28 20:09:43,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7880def5c/6d7f1c6af80c45f4806fe6d40c570bb7/FLAGc3aecf7d6 [2019-11-28 20:09:44,142 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:09:44,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-1.i [2019-11-28 20:09:44,158 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7880def5c/6d7f1c6af80c45f4806fe6d40c570bb7/FLAGc3aecf7d6 [2019-11-28 20:09:44,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7880def5c/6d7f1c6af80c45f4806fe6d40c570bb7 [2019-11-28 20:09:44,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:09:44,451 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:09:44,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:09:44,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:09:44,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:09:44,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:09:44" (1/1) ... [2019-11-28 20:09:44,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f6e971e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:44, skipping insertion in model container [2019-11-28 20:09:44,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:09:44" (1/1) ... [2019-11-28 20:09:44,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:09:44,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:09:44,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:09:44,942 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:09:45,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:09:45,058 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:09:45,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:45 WrapperNode [2019-11-28 20:09:45,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:09:45,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:09:45,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:09:45,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:09:45,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:45" (1/1) ... [2019-11-28 20:09:45,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:45" (1/1) ... [2019-11-28 20:09:45,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:45" (1/1) ... [2019-11-28 20:09:45,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:45" (1/1) ... [2019-11-28 20:09:45,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:45" (1/1) ... [2019-11-28 20:09:45,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:45" (1/1) ... [2019-11-28 20:09:45,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:45" (1/1) ... [2019-11-28 20:09:45,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:09:45,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:09:45,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:09:45,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:09:45,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:45" (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 [2019-11-28 20:09:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:09:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:09:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 20:09:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 20:09:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 20:09:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 20:09:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 20:09:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:09:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 20:09:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:09:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:09:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:09:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:09:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:09:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:09:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:09:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:09:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:09:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:09:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:09:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:09:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:09:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:09:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:09:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:09:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 20:09:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 20:09:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 20:09:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 20:09:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 20:09:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:09:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:09:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:09:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:09:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:09:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:09:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:09:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:09:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:09:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:09:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:09:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:09:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:09:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:09:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:09:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:09:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:09:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:09:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:09:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:09:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:09:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:09:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:09:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:09:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:09:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:09:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:09:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:09:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:09:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:09:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:09:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:09:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:09:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:09:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:09:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:09:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:09:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:09:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:09:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:09:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:09:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 20:09:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:09:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:09:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 20:09:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:09:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:09:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 20:09:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:09:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:09:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:09:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:09:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:09:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:09:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:09:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:09:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:09:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:09:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:09:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:09:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:09:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:09:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:09:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:09:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:09:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:09:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:09:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:09:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:09:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:09:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:09:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:09:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:09:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:09:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:09:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:09:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:09:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:09:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:09:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:09:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:09:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:09:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:09:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:09:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:09:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:09:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:09:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:09:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:09:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:09:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 20:09:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:09:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:09:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 20:09:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:09:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:09:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:09:45,733 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:09:45,733 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-28 20:09:45,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:09:45 BoogieIcfgContainer [2019-11-28 20:09:45,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:09:45,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:09:45,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:09:45,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:09:45,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:09:44" (1/3) ... [2019-11-28 20:09:45,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c67ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:09:45, skipping insertion in model container [2019-11-28 20:09:45,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:45" (2/3) ... [2019-11-28 20:09:45,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c67ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:09:45, skipping insertion in model container [2019-11-28 20:09:45,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:09:45" (3/3) ... [2019-11-28 20:09:45,744 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0158_1-1.i [2019-11-28 20:09:45,754 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:09:45,762 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2019-11-28 20:09:45,775 INFO L249 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2019-11-28 20:09:45,796 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:09:45,797 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:09:45,797 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:09:45,797 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:09:45,798 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:09:45,798 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:09:45,798 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:09:45,798 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:09:45,814 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-11-28 20:09:45,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:09:45,824 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:45,825 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:45,826 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:09:45,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:45,832 INFO L82 PathProgramCache]: Analyzing trace with hash -804131878, now seen corresponding path program 1 times [2019-11-28 20:09:45,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:45,840 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164335587] [2019-11-28 20:09:45,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:46,046 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 20:09:46,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164335587] [2019-11-28 20:09:46,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:46,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:09:46,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798818215] [2019-11-28 20:09:46,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:09:46,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:46,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:09:46,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:09:46,079 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2019-11-28 20:09:46,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:46,227 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2019-11-28 20:09:46,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:09:46,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:09:46,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:46,242 INFO L225 Difference]: With dead ends: 32 [2019-11-28 20:09:46,242 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 20:09:46,246 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 20:09:46,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 20:09:46,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-28 20:09:46,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 20:09:46,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-28 20:09:46,292 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 7 [2019-11-28 20:09:46,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:46,293 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-28 20:09:46,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:09:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-28 20:09:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:09:46,294 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:46,294 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:46,295 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:09:46,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:46,296 INFO L82 PathProgramCache]: Analyzing trace with hash -804131877, now seen corresponding path program 1 times [2019-11-28 20:09:46,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:46,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514188549] [2019-11-28 20:09:46,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:46,424 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 20:09:46,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514188549] [2019-11-28 20:09:46,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:46,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:09:46,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343943372] [2019-11-28 20:09:46,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:09:46,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:46,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:09:46,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:09:46,428 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 4 states. [2019-11-28 20:09:46,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:46,494 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-11-28 20:09:46,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:09:46,495 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:09:46,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:46,496 INFO L225 Difference]: With dead ends: 23 [2019-11-28 20:09:46,496 INFO L226 Difference]: Without dead ends: 23 [2019-11-28 20:09:46,497 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 20:09:46,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-28 20:09:46,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-28 20:09:46,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 20:09:46,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-11-28 20:09:46,502 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 7 [2019-11-28 20:09:46,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:46,503 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-11-28 20:09:46,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:09:46,504 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-11-28 20:09:46,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 20:09:46,504 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:46,505 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:46,505 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:09:46,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:46,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1963047839, now seen corresponding path program 1 times [2019-11-28 20:09:46,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:46,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932298367] [2019-11-28 20:09:46,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:46,604 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 20:09:46,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932298367] [2019-11-28 20:09:46,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:46,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:09:46,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363964937] [2019-11-28 20:09:46,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:09:46,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:46,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:09:46,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:09:46,609 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 6 states. [2019-11-28 20:09:46,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:46,716 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2019-11-28 20:09:46,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:09:46,717 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-28 20:09:46,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:46,718 INFO L225 Difference]: With dead ends: 22 [2019-11-28 20:09:46,718 INFO L226 Difference]: Without dead ends: 22 [2019-11-28 20:09:46,718 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:09:46,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-28 20:09:46,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-28 20:09:46,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-28 20:09:46,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-11-28 20:09:46,723 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 14 [2019-11-28 20:09:46,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:46,723 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-11-28 20:09:46,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:09:46,724 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-11-28 20:09:46,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 20:09:46,725 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:46,725 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:46,725 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:09:46,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:46,726 INFO L82 PathProgramCache]: Analyzing trace with hash -724940792, now seen corresponding path program 1 times [2019-11-28 20:09:46,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:46,727 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892870075] [2019-11-28 20:09:46,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:46,812 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 20:09:46,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892870075] [2019-11-28 20:09:46,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:46,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:09:46,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030216255] [2019-11-28 20:09:46,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:09:46,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:46,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:09:46,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:09:46,816 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 6 states. [2019-11-28 20:09:46,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:46,918 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-28 20:09:46,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:09:46,919 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-28 20:09:46,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:46,920 INFO L225 Difference]: With dead ends: 21 [2019-11-28 20:09:46,921 INFO L226 Difference]: Without dead ends: 21 [2019-11-28 20:09:46,921 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:09:46,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-28 20:09:46,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-28 20:09:46,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-28 20:09:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-28 20:09:46,925 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 15 [2019-11-28 20:09:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:46,926 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-28 20:09:46,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:09:46,927 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-28 20:09:46,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 20:09:46,927 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:46,928 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:46,928 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:09:46,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:46,929 INFO L82 PathProgramCache]: Analyzing trace with hash -998327997, now seen corresponding path program 1 times [2019-11-28 20:09:46,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:46,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749508478] [2019-11-28 20:09:46,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:47,054 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 20:09:47,056 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749508478] [2019-11-28 20:09:47,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:47,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:09:47,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268975755] [2019-11-28 20:09:47,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:09:47,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:47,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:09:47,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:09:47,060 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2019-11-28 20:09:47,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:47,156 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-11-28 20:09:47,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:09:47,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-28 20:09:47,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:47,157 INFO L225 Difference]: With dead ends: 20 [2019-11-28 20:09:47,157 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 20:09:47,158 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:09:47,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 20:09:47,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-28 20:09:47,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-28 20:09:47,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-11-28 20:09:47,161 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 16 [2019-11-28 20:09:47,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:47,162 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-11-28 20:09:47,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:09:47,162 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-11-28 20:09:47,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 20:09:47,163 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:47,163 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:47,163 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:09:47,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:47,164 INFO L82 PathProgramCache]: Analyzing trace with hash -883396757, now seen corresponding path program 1 times [2019-11-28 20:09:47,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:47,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491414501] [2019-11-28 20:09:47,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:47,392 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 20:09:47,393 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491414501] [2019-11-28 20:09:47,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:47,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 20:09:47,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875296724] [2019-11-28 20:09:47,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:09:47,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:47,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:09:47,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:09:47,395 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 7 states. [2019-11-28 20:09:47,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:47,534 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-11-28 20:09:47,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:09:47,535 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-28 20:09:47,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:47,535 INFO L225 Difference]: With dead ends: 19 [2019-11-28 20:09:47,535 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 20:09:47,536 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-28 20:09:47,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 20:09:47,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 20:09:47,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 20:09:47,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 20:09:47,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-28 20:09:47,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:47,537 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:09:47,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:09:47,537 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:09:47,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 20:09:47,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:09:47 BoogieIcfgContainer [2019-11-28 20:09:47,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:09:47,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:09:47,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:09:47,546 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:09:47,546 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:09:45" (3/4) ... [2019-11-28 20:09:47,550 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 20:09:47,560 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-28 20:09:47,561 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-11-28 20:09:47,561 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-11-28 20:09:47,562 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-11-28 20:09:47,562 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-11-28 20:09:47,562 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-28 20:09:47,563 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-11-28 20:09:47,572 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-28 20:09:47,572 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 20:09:47,573 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 20:09:47,573 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 20:09:47,658 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:09:47,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:09:47,664 INFO L168 Benchmark]: Toolchain (without parser) took 3210.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 952.3 MB in the beginning and 935.4 MB in the end (delta: 16.9 MB). Peak memory consumption was 162.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:09:47,665 INFO L168 Benchmark]: CDTParser took 0.27 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 20:09:47,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:09:47,671 INFO L168 Benchmark]: Boogie Preprocessor took 71.98 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:09:47,673 INFO L168 Benchmark]: RCFGBuilder took 600.47 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: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:09:47,674 INFO L168 Benchmark]: TraceAbstraction took 1808.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 942.1 MB in the end (delta: 134.1 MB). Peak memory consumption was 134.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:09:47,675 INFO L168 Benchmark]: Witness Printer took 114.77 ms. Allocated memory is still 1.2 GB. Free memory was 942.1 MB in the beginning and 935.4 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:09:47,684 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 608.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.98 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 600.47 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: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1808.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 942.1 MB in the end (delta: 134.1 MB). Peak memory consumption was 134.1 MB. Max. memory is 11.5 GB. * Witness Printer took 114.77 ms. Allocated memory is still 1.2 GB. Free memory was 942.1 MB in the beginning and 935.4 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 513]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 532]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 532]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 527]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 532]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 529]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 529]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 527]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 532]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 532]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 53 locations, 16 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 112 SDslu, 97 SDs, 0 SdLazy, 257 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 6852 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 correct! Received shutdown request...