./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/splice-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/splice-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer --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 336180afe1780bd2c4e24c39131e05a2fcb6ebf1 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2019-12-07 18:07:28,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:07:28,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:07:28,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:07:28,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:07:28,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:07:28,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:07:28,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:07:28,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:07:28,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:07:28,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:07:28,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:07:28,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:07:28,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:07:28,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:07:28,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:07:28,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:07:28,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:07:28,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:07:28,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:07:28,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:07:28,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:07:28,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:07:28,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:07:28,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:07:28,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:07:28,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:07:28,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:07:28,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:07:28,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:07:28,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:07:28,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:07:28,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:07:28,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:07:28,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:07:28,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:07:28,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:07:28,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:07:28,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:07:28,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:07:28,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:07:28,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-12-07 18:07:28,323 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:07:28,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:07:28,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:07:28,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:07:28,325 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:07:28,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:07:28,325 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:07:28,326 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:07:28,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:07:28,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:07:28,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:07:28,326 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 18:07:28,327 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 18:07:28,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:07:28,327 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 18:07:28,327 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:07:28,327 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:07:28,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:07:28,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:07:28,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:07:28,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:07:28,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:07:28,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:07:28,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:07:28,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:07:28,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:07:28,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:07:28,329 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-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 -> 336180afe1780bd2c4e24c39131e05a2fcb6ebf1 [2019-12-07 18:07:28,433 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:07:28,443 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:07:28,446 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:07:28,448 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:07:28,448 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:07:28,448 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer/../../sv-benchmarks/c/list-properties/splice-1.i [2019-12-07 18:07:28,492 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer/data/5c551b9e3/e24d42a934c74341b476b54edbac1d5c/FLAGee6b20c85 [2019-12-07 18:07:28,862 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:07:28,862 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/sv-benchmarks/c/list-properties/splice-1.i [2019-12-07 18:07:28,872 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer/data/5c551b9e3/e24d42a934c74341b476b54edbac1d5c/FLAGee6b20c85 [2019-12-07 18:07:28,880 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer/data/5c551b9e3/e24d42a934c74341b476b54edbac1d5c [2019-12-07 18:07:28,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:07:28,882 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 18:07:28,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:07:28,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:07:28,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:07:28,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:07:28" (1/1) ... [2019-12-07 18:07:28,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eba8e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:07:28, skipping insertion in model container [2019-12-07 18:07:28,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:07:28" (1/1) ... [2019-12-07 18:07:28,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:07:28,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:07:29,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:07:29,130 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:07:29,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:07:29,189 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:07:29,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:07:29 WrapperNode [2019-12-07 18:07:29,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:07:29,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:07:29,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:07:29,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:07:29,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:07:29" (1/1) ... [2019-12-07 18:07:29,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:07:29" (1/1) ... [2019-12-07 18:07:29,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:07:29" (1/1) ... [2019-12-07 18:07:29,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:07:29" (1/1) ... [2019-12-07 18:07:29,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:07:29" (1/1) ... [2019-12-07 18:07:29,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:07:29" (1/1) ... [2019-12-07 18:07:29,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:07:29" (1/1) ... [2019-12-07 18:07:29,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:07:29,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:07:29,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:07:29,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:07:29,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:07:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:07:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 18:07:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:07:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 18:07:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 18:07:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 18:07:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 18:07:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 18:07:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-12-07 18:07:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 18:07:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 18:07:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 18:07:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 18:07:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 18:07:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 18:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 18:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 18:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 18:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 18:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 18:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 18:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 18:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 18:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 18:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 18:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 18:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 18:07:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 18:07:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 18:07:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 18:07:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 18:07:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 18:07:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 18:07:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 18:07:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 18:07:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 18:07:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 18:07:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 18:07:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 18:07:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 18:07:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 18:07:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 18:07:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 18:07:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 18:07:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 18:07:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:07:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 18:07:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:07:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:07:29,441 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-12-07 18:07:29,582 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:07:29,582 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 18:07:29,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:07:29 BoogieIcfgContainer [2019-12-07 18:07:29,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:07:29,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:07:29,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:07:29,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:07:29,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:07:28" (1/3) ... [2019-12-07 18:07:29,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b86c41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:07:29, skipping insertion in model container [2019-12-07 18:07:29,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:07:29" (2/3) ... [2019-12-07 18:07:29,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b86c41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:07:29, skipping insertion in model container [2019-12-07 18:07:29,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:07:29" (3/3) ... [2019-12-07 18:07:29,588 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-1.i [2019-12-07 18:07:29,594 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:07:29,599 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2019-12-07 18:07:29,606 INFO L249 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2019-12-07 18:07:29,619 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:07:29,619 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 18:07:29,619 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:07:29,619 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:07:29,619 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:07:29,619 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:07:29,619 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:07:29,619 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:07:29,630 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-12-07 18:07:29,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:07:29,635 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:07:29,636 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:07:29,636 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 18:07:29,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:07:29,640 INFO L82 PathProgramCache]: Analyzing trace with hash 132221508, now seen corresponding path program 1 times [2019-12-07 18:07:29,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:07:29,645 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965599291] [2019-12-07 18:07:29,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:07:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:07:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:07:29,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:07:29,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965599291] [2019-12-07 18:07:29,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:07:29,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:07:29,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649361259] [2019-12-07 18:07:29,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:07:29,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:07:29,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:07:29,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:07:29,764 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-12-07 18:07:29,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:07:29,883 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-12-07 18:07:29,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:07:29,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-07 18:07:29,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:07:29,890 INFO L225 Difference]: With dead ends: 84 [2019-12-07 18:07:29,890 INFO L226 Difference]: Without dead ends: 77 [2019-12-07 18:07:29,891 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 [2019-12-07 18:07:29,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-12-07 18:07:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-12-07 18:07:29,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-12-07 18:07:29,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2019-12-07 18:07:29,917 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 10 [2019-12-07 18:07:29,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:07:29,917 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2019-12-07 18:07:29,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:07:29,918 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2019-12-07 18:07:29,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:07:29,918 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:07:29,918 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:07:29,918 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 18:07:29,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:07:29,919 INFO L82 PathProgramCache]: Analyzing trace with hash -196136195, now seen corresponding path program 1 times [2019-12-07 18:07:29,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:07:29,919 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548389631] [2019-12-07 18:07:29,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:07:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:07:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:07:29,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:07:29,972 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548389631] [2019-12-07 18:07:29,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:07:29,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:07:29,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137230533] [2019-12-07 18:07:29,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:07:29,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:07:29,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:07:29,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:07:29,975 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand 5 states. [2019-12-07 18:07:30,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:07:30,125 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-12-07 18:07:30,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:07:30,126 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-07 18:07:30,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:07:30,127 INFO L225 Difference]: With dead ends: 84 [2019-12-07 18:07:30,127 INFO L226 Difference]: Without dead ends: 84 [2019-12-07 18:07:30,128 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 [2019-12-07 18:07:30,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-12-07 18:07:30,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 78. [2019-12-07 18:07:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-12-07 18:07:30,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2019-12-07 18:07:30,136 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 11 [2019-12-07 18:07:30,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:07:30,136 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2019-12-07 18:07:30,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:07:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2019-12-07 18:07:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:07:30,136 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:07:30,136 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:07:30,136 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 18:07:30,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:07:30,137 INFO L82 PathProgramCache]: Analyzing trace with hash -196136194, now seen corresponding path program 1 times [2019-12-07 18:07:30,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:07:30,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628764488] [2019-12-07 18:07:30,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:07:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:07:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:07:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:07:30,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628764488] [2019-12-07 18:07:30,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:07:30,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:07:30,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887994888] [2019-12-07 18:07:30,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:07:30,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:07:30,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:07:30,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:07:30,193 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand 5 states. [2019-12-07 18:07:30,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:07:30,332 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2019-12-07 18:07:30,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:07:30,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-07 18:07:30,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:07:30,333 INFO L225 Difference]: With dead ends: 92 [2019-12-07 18:07:30,333 INFO L226 Difference]: Without dead ends: 92 [2019-12-07 18:07:30,333 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 [2019-12-07 18:07:30,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-12-07 18:07:30,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 85. [2019-12-07 18:07:30,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-12-07 18:07:30,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2019-12-07 18:07:30,339 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 11 [2019-12-07 18:07:30,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:07:30,339 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2019-12-07 18:07:30,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:07:30,340 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2019-12-07 18:07:30,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:07:30,340 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:07:30,340 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:07:30,340 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 18:07:30,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:07:30,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1937825696, now seen corresponding path program 1 times [2019-12-07 18:07:30,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:07:30,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572721476] [2019-12-07 18:07:30,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:07:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:07:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:07:30,381 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:07:30,381 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:07:30,388 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 18:07:30,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:07:30 BoogieIcfgContainer [2019-12-07 18:07:30,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:07:30,396 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:07:30,396 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:07:30,397 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:07:30,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:07:29" (3/4) ... [2019-12-07 18:07:30,398 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:07:30,400 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 18:07:30,427 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f216ef0f-8555-4d39-ad1c-3a551dd2ac27/bin/uautomizer/witness.graphml [2019-12-07 18:07:30,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:07:30,429 INFO L168 Benchmark]: Toolchain (without parser) took 1545.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 939.3 MB in the beginning and 900.2 MB in the end (delta: 39.1 MB). Peak memory consumption was 142.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:07:30,429 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:07:30,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -142.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:07:30,430 INFO L168 Benchmark]: Boogie Preprocessor took 40.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:07:30,430 INFO L168 Benchmark]: RCFGBuilder took 352.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:07:30,431 INFO L168 Benchmark]: TraceAbstraction took 812.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 900.2 MB in the end (delta: 120.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:07:30,431 INFO L168 Benchmark]: Witness Printer took 30.91 ms. Allocated memory is still 1.1 GB. Free memory is still 900.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:07:30,433 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -142.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 352.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 812.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 900.2 MB in the end (delta: 120.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. * Witness Printer took 30.91 ms. Allocated memory is still 1.1 GB. Free memory is still 900.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - 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 = 1; [L522] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L523] COND FALSE !(a == 0) VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L524] List t; [L525] List l1; [L526] List l2; [L527] List b; [L528] List u; [L529] List p = a; VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L530] COND FALSE !(__VERIFIER_nondet_int()) [L543] p->h = 3 VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L544] EXPR a->h VAL [a={-1:0}, a->h=3, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L544] COND TRUE a->h == 3 [L544] return 0; VAL [\result=0, a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 100 locations, 30 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 230 SDslu, 58 SDs, 0 SdLazy, 386 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=3, 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, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 1142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...