./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/list-properties/list_flag-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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-properties/list_flag-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 27e1465127a7716c3a524ea62953f8f9857cdca3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:20:40,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:20:40,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:20:40,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:20:40,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:20:40,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:20:40,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:20:40,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:20:40,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:20:40,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:20:40,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:20:40,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:20:40,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:20:40,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:20:40,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:20:40,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:20:40,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:20:40,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:20:40,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:20:40,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:20:40,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:20:40,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:20:40,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:20:40,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:20:40,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:20:40,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:20:40,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:20:40,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:20:40,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:20:40,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:20:40,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:20:40,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:20:40,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:20:40,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:20:40,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:20:40,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:20:40,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:20:40,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:20:40,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:20:40,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:20:40,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:20:40,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-28 20:20:40,174 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:20:40,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:20:40,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:20:40,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:20:40,176 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:20:40,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:20:40,176 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:20:40,177 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:20:40,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:20:40,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:20:40,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:20:40,178 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:20:40,178 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:20:40,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:20:40,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:20:40,179 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:20:40,179 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:20:40,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:20:40,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:20:40,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:20:40,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:20:40,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:20:40,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:20:40,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:20:40,181 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:20:40,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:20:40,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:20:40,182 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-memcleanup) ) 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 -> 27e1465127a7716c3a524ea62953f8f9857cdca3 [2019-11-28 20:20:40,489 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:20:40,502 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:20:40,506 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:20:40,508 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:20:40,508 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:20:40,509 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/list_flag-1.i [2019-11-28 20:20:40,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8657db971/7c8249051f804764a0530c8c1486e0a2/FLAG91aee3b73 [2019-11-28 20:20:41,103 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:20:41,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_flag-1.i [2019-11-28 20:20:41,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8657db971/7c8249051f804764a0530c8c1486e0a2/FLAG91aee3b73 [2019-11-28 20:20:41,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8657db971/7c8249051f804764a0530c8c1486e0a2 [2019-11-28 20:20:41,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:20:41,414 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:20:41,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:20:41,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:20:41,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:20:41,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:41" (1/1) ... [2019-11-28 20:20:41,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d2f814c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:41, skipping insertion in model container [2019-11-28 20:20:41,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:41" (1/1) ... [2019-11-28 20:20:41,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:20:41,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:20:41,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:20:41,866 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:20:41,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:20:41,988 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:20:41,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:41 WrapperNode [2019-11-28 20:20:41,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:20:41,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:20:41,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:20:41,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:20:42,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:41" (1/1) ... [2019-11-28 20:20:42,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:41" (1/1) ... [2019-11-28 20:20:42,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:41" (1/1) ... [2019-11-28 20:20:42,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:41" (1/1) ... [2019-11-28 20:20:42,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:41" (1/1) ... [2019-11-28 20:20:42,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:41" (1/1) ... [2019-11-28 20:20:42,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:41" (1/1) ... [2019-11-28 20:20:42,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:20:42,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:20:42,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:20:42,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:20:42,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:41" (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 20:20:42,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:20:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:20:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 20:20:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 20:20:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 20:20:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 20:20:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 20:20:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-28 20:20:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:20:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 20:20:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:20:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:20:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:20:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:20:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:20:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:20:42,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:20:42,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:20:42,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:20:42,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:20:42,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:20:42,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:20:42,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:20:42,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:20:42,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:20:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:20:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:20:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 20:20:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 20:20:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 20:20:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 20:20:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 20:20:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:20:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:20:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:20:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:20:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:20:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:20:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:20:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:20:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:20:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:20:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:20:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:20:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:20:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:20:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:20:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:20:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:20:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:20:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:20:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:20:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:20:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:20:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:20:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:20:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:20:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:20:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:20:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:20:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:20:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:20:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:20:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:20:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:20:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:20:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:20:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:20:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:20:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:20:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:20:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:20:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:20:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 20:20:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:20:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:20:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 20:20:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:20:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:20:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 20:20:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:20:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:20:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:20:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:20:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:20:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:20:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:20:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:20:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:20:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:20:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:20:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:20:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:20:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:20:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:20:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:20:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:20:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:20:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:20:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:20:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:20:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:20:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:20:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:20:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:20:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:20:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:20:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:20:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:20:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:20:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:20:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:20:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:20:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:20:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:20:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:20:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:20:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:20:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-28 20:20:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:20:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:20:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:20:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 20:20:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 20:20:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:20:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:20:42,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:20:42,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:20:42,488 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-28 20:20:42,788 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:20:42,788 INFO L287 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-28 20:20:42,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:42 BoogieIcfgContainer [2019-11-28 20:20:42,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:20:42,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:20:42,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:20:42,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:20:42,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:20:41" (1/3) ... [2019-11-28 20:20:42,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253e4888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:42, skipping insertion in model container [2019-11-28 20:20:42,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:41" (2/3) ... [2019-11-28 20:20:42,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253e4888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:42, skipping insertion in model container [2019-11-28 20:20:42,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:42" (3/3) ... [2019-11-28 20:20:42,799 INFO L109 eAbstractionObserver]: Analyzing ICFG list_flag-1.i [2019-11-28 20:20:42,809 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:20:42,817 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2019-11-28 20:20:42,830 INFO L249 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2019-11-28 20:20:42,847 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:20:42,848 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:20:42,848 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:20:42,848 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:20:42,848 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:20:42,848 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:20:42,849 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:20:42,849 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:20:42,866 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2019-11-28 20:20:42,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 20:20:42,876 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:42,878 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:42,878 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr21ENSURES_VIOLATIONMEMORY_LEAK, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:20:42,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:42,885 INFO L82 PathProgramCache]: Analyzing trace with hash 2131838764, now seen corresponding path program 1 times [2019-11-28 20:20:42,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:42,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009521154] [2019-11-28 20:20:42,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:43,066 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 20:20:43,067 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009521154] [2019-11-28 20:20:43,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:43,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:20:43,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580689373] [2019-11-28 20:20:43,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:20:43,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:43,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:20:43,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:20:43,097 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2019-11-28 20:20:43,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:43,278 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2019-11-28 20:20:43,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:20:43,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 20:20:43,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:43,290 INFO L225 Difference]: With dead ends: 62 [2019-11-28 20:20:43,290 INFO L226 Difference]: Without dead ends: 55 [2019-11-28 20:20:43,292 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:20:43,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-28 20:20:43,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-11-28 20:20:43,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-28 20:20:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2019-11-28 20:20:43,335 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 10 [2019-11-28 20:20:43,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:43,336 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2019-11-28 20:20:43,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:20:43,336 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2019-11-28 20:20:43,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:20:43,337 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:43,337 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:43,338 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr21ENSURES_VIOLATIONMEMORY_LEAK, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:20:43,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:43,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1662458549, now seen corresponding path program 1 times [2019-11-28 20:20:43,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:43,339 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668307580] [2019-11-28 20:20:43,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:43,455 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 20:20:43,456 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668307580] [2019-11-28 20:20:43,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:43,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:20:43,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458323590] [2019-11-28 20:20:43,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:20:43,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:43,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:20:43,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:43,460 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 5 states. [2019-11-28 20:20:43,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:43,708 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2019-11-28 20:20:43,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:20:43,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 20:20:43,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:43,710 INFO L225 Difference]: With dead ends: 91 [2019-11-28 20:20:43,711 INFO L226 Difference]: Without dead ends: 91 [2019-11-28 20:20:43,712 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:43,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-28 20:20:43,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 72. [2019-11-28 20:20:43,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-11-28 20:20:43,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 90 transitions. [2019-11-28 20:20:43,723 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 90 transitions. Word has length 11 [2019-11-28 20:20:43,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:43,723 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 90 transitions. [2019-11-28 20:20:43,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:20:43,724 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 90 transitions. [2019-11-28 20:20:43,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:20:43,725 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:43,725 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:43,726 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr21ENSURES_VIOLATIONMEMORY_LEAK, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:20:43,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:43,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1662458548, now seen corresponding path program 1 times [2019-11-28 20:20:43,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:43,727 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370819284] [2019-11-28 20:20:43,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:43,806 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 20:20:43,806 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370819284] [2019-11-28 20:20:43,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:43,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:20:43,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145070680] [2019-11-28 20:20:43,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:20:43,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:43,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:20:43,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:43,809 INFO L87 Difference]: Start difference. First operand 72 states and 90 transitions. Second operand 5 states. [2019-11-28 20:20:43,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:43,956 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2019-11-28 20:20:43,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:20:43,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 20:20:43,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:43,958 INFO L225 Difference]: With dead ends: 67 [2019-11-28 20:20:43,958 INFO L226 Difference]: Without dead ends: 67 [2019-11-28 20:20:43,958 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:43,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-11-28 20:20:43,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2019-11-28 20:20:43,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-11-28 20:20:43,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2019-11-28 20:20:43,977 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 11 [2019-11-28 20:20:43,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:43,977 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2019-11-28 20:20:43,978 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:20:43,978 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2019-11-28 20:20:43,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 20:20:43,979 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:43,979 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:43,979 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr21ENSURES_VIOLATIONMEMORY_LEAK, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:20:43,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:43,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1397561430, now seen corresponding path program 1 times [2019-11-28 20:20:43,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:43,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235694590] [2019-11-28 20:20:43,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:44,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235694590] [2019-11-28 20:20:44,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:44,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 20:20:44,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331828646] [2019-11-28 20:20:44,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:20:44,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:44,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:20:44,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:20:44,083 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand 7 states. [2019-11-28 20:20:44,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:44,321 INFO L93 Difference]: Finished difference Result 103 states and 111 transitions. [2019-11-28 20:20:44,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:20:44,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-11-28 20:20:44,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:44,323 INFO L225 Difference]: With dead ends: 103 [2019-11-28 20:20:44,324 INFO L226 Difference]: Without dead ends: 103 [2019-11-28 20:20:44,324 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-28 20:20:44,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-28 20:20:44,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 71. [2019-11-28 20:20:44,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-11-28 20:20:44,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2019-11-28 20:20:44,332 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 18 [2019-11-28 20:20:44,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:44,333 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 80 transitions. [2019-11-28 20:20:44,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:20:44,333 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 80 transitions. [2019-11-28 20:20:44,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 20:20:44,334 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:44,334 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:44,334 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr21ENSURES_VIOLATIONMEMORY_LEAK, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:20:44,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:44,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1397593132, now seen corresponding path program 1 times [2019-11-28 20:20:44,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:44,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368958933] [2019-11-28 20:20:44,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:44,441 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 20:20:44,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368958933] [2019-11-28 20:20:44,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:44,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 20:20:44,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587275792] [2019-11-28 20:20:44,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:20:44,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:44,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:20:44,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:20:44,445 INFO L87 Difference]: Start difference. First operand 71 states and 80 transitions. Second operand 7 states. [2019-11-28 20:20:44,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:44,691 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2019-11-28 20:20:44,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:20:44,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-11-28 20:20:44,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:44,693 INFO L225 Difference]: With dead ends: 101 [2019-11-28 20:20:44,693 INFO L226 Difference]: Without dead ends: 101 [2019-11-28 20:20:44,694 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-28 20:20:44,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-11-28 20:20:44,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 75. [2019-11-28 20:20:44,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-11-28 20:20:44,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2019-11-28 20:20:44,701 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 18 [2019-11-28 20:20:44,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:44,702 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2019-11-28 20:20:44,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:20:44,702 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2019-11-28 20:20:44,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 20:20:44,703 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:44,703 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:44,703 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr21ENSURES_VIOLATIONMEMORY_LEAK, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:20:44,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:44,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1397592971, now seen corresponding path program 1 times [2019-11-28 20:20:44,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:44,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203658299] [2019-11-28 20:20:44,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:20:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:20:44,763 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:20:44,763 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:20:44,775 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 20:20:44,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:20:44 BoogieIcfgContainer [2019-11-28 20:20:44,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:20:44,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:20:44,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:20:44,790 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:20:44,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:42" (3/4) ... [2019-11-28 20:20:44,793 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:20:44,796 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 20:20:44,881 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:20:44,881 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:20:44,888 INFO L168 Benchmark]: Toolchain (without parser) took 3469.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 957.7 MB in the beginning and 861.6 MB in the end (delta: 96.1 MB). Peak memory consumption was 230.9 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:44,889 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:20:44,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 572.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:44,891 INFO L168 Benchmark]: Boogie Preprocessor took 105.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:44,892 INFO L168 Benchmark]: RCFGBuilder took 694.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:44,897 INFO L168 Benchmark]: TraceAbstraction took 1998.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 868.3 MB in the end (delta: 176.8 MB). Peak memory consumption was 176.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:44,898 INFO L168 Benchmark]: Witness Printer took 91.26 ms. Allocated memory is still 1.2 GB. Free memory was 868.3 MB in the beginning and 861.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:44,907 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 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 572.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 105.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 694.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1998.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 868.3 MB in the end (delta: 176.8 MB). Peak memory consumption was 176.8 MB. Max. memory is 11.5 GB. * Witness Printer took 91.26 ms. Allocated memory is still 1.2 GB. Free memory was 868.3 MB in the beginning and 861.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 520]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] int flag = __VERIFIER_nondet_int(); [L522] List p, a, t; [L523] a = (List) malloc(sizeof(struct node)) VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L524] COND FALSE !(a == 0) VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L525] p = a VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L526] COND FALSE !(__VERIFIER_nondet_int()) [L537] p->h = 3 VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L538] p = a VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L539] COND TRUE \read(flag) VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L540] EXPR p->h VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3] [L540] COND FALSE !(p->h == 2) [L545] EXPR p->h VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3] [L545] COND FALSE !(p->h != 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 78 locations, 22 error locations. Result: UNSAFE, OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 198 SDtfs, 350 SDslu, 297 SDs, 0 SdLazy, 605 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=5, 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, 5 MinimizatonAttempts, 77 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 3522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 1/1 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...