./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-optional-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-optional-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/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 4817866b64d47a0885045d682a213ce065b00b0f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.2.0-a4ecdab [2020-11-28 03:14:38,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:14:38,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:14:38,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:14:38,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:14:38,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:14:38,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:14:38,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:14:38,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:14:38,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:14:38,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:14:38,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:14:38,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:14:38,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:14:38,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:14:38,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:14:38,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:14:38,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:14:38,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:14:38,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:14:38,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:14:38,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:14:38,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:14:38,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:14:38,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:14:38,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:14:38,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:14:38,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:14:38,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:14:38,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:14:38,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:14:38,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:14:38,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:14:38,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:14:38,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:14:38,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:14:38,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:14:38,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:14:38,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:14:38,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:14:38,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:14:38,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-11-28 03:14:38,885 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:14:38,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:14:38,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:14:38,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:14:38,889 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:14:38,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:14:38,889 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:14:38,890 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:14:38,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:14:38,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:14:38,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:14:38,892 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:14:38,892 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:14:38,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:14:38,893 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:14:38,893 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:14:38,893 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:14:38,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:14:38,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:14:38,894 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:14:38,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:14:38,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:38,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:14:38,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:14:38,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:14:38,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:14:38,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:14:38,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4817866b64d47a0885045d682a213ce065b00b0f [2020-11-28 03:14:39,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:14:39,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:14:39,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:14:39,274 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:14:39,283 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:14:39,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer/../../sv-benchmarks/c/forester-heap/sll-optional-2.i [2020-11-28 03:14:39,374 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer/data/7c6ddfafc/6b4debc42e1342e598ac4a81b899c0cb/FLAGc00429c1c [2020-11-28 03:14:40,057 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:14:40,058 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/sv-benchmarks/c/forester-heap/sll-optional-2.i [2020-11-28 03:14:40,079 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer/data/7c6ddfafc/6b4debc42e1342e598ac4a81b899c0cb/FLAGc00429c1c [2020-11-28 03:14:40,287 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer/data/7c6ddfafc/6b4debc42e1342e598ac4a81b899c0cb [2020-11-28 03:14:40,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:14:40,293 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:14:40,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:40,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:14:40,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:14:40,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:40" (1/1) ... [2020-11-28 03:14:40,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2a87ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:40, skipping insertion in model container [2020-11-28 03:14:40,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:40" (1/1) ... [2020-11-28 03:14:40,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:14:40,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:14:40,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:40,920 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:14:41,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:41,081 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:14:41,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:41 WrapperNode [2020-11-28 03:14:41,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:41,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:14:41,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:14:41,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:14:41,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:41" (1/1) ... [2020-11-28 03:14:41,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:41" (1/1) ... [2020-11-28 03:14:41,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:41" (1/1) ... [2020-11-28 03:14:41,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:41" (1/1) ... [2020-11-28 03:14:41,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:41" (1/1) ... [2020-11-28 03:14:41,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:41" (1/1) ... [2020-11-28 03:14:41,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:41" (1/1) ... [2020-11-28 03:14:41,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:14:41,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:14:41,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:14:41,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:14:41,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/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 [2020-11-28 03:14:41,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:14:41,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:14:41,263 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-28 03:14:41,263 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:14:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:14:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:14:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:14:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:14:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:14:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:14:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:14:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:14:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:14:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:14:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:14:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:14:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:14:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:14:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:14:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:14:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:14:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:14:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:14:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:14:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:14:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:14:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:14:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:14:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:14:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:14:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:14:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:14:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:14:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:14:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:14:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:14:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:14:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:14:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:14:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:14:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:14:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:14:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:14:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:14:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:14:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:14:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:14:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:14:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:14:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:14:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:14:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:14:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:14:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:14:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:14:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:14:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:14:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:14:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-28 03:14:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:14:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:14:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:14:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:14:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:14:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:14:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:14:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:14:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:14:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:14:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:14:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:14:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:14:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:14:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:14:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:14:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:14:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:14:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:14:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:14:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:14:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:14:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:14:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:14:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:14:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:14:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:14:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:14:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:14:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:14:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:14:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:14:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:14:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:14:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:14:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:14:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:14:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:14:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:14:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:14:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:14:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:14:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:14:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:14:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:14:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:14:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:14:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:14:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:14:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-28 03:14:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-28 03:14:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-28 03:14:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-28 03:14:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:14:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:14:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:14:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:14:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:14:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:14:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:14:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:14:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:14:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:14:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:14:42,336 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:14:42,336 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:14:42,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:42 BoogieIcfgContainer [2020-11-28 03:14:42,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:14:42,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:14:42,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:14:42,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:14:42,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:14:40" (1/3) ... [2020-11-28 03:14:42,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0a8c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:42, skipping insertion in model container [2020-11-28 03:14:42,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:41" (2/3) ... [2020-11-28 03:14:42,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0a8c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:42, skipping insertion in model container [2020-11-28 03:14:42,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:42" (3/3) ... [2020-11-28 03:14:42,353 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-optional-2.i [2020-11-28 03:14:42,367 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:14:42,373 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 60 error locations. [2020-11-28 03:14:42,389 INFO L253 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2020-11-28 03:14:42,428 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:14:42,428 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:14:42,429 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:14:42,429 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:14:42,429 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:14:42,430 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:14:42,434 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:14:42,434 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:14:42,478 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-11-28 03:14:42,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:14:42,491 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:42,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:42,493 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:14:42,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:42,503 INFO L82 PathProgramCache]: Analyzing trace with hash 2076013176, now seen corresponding path program 1 times [2020-11-28 03:14:42,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:42,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476569455] [2020-11-28 03:14:42,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:42,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:42,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:42,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476569455] [2020-11-28 03:14:42,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:42,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:14:42,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3347637] [2020-11-28 03:14:42,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:14:42,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:42,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:14:42,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:14:42,868 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 4 states. [2020-11-28 03:14:43,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:43,393 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2020-11-28 03:14:43,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:14:43,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:14:43,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:43,407 INFO L225 Difference]: With dead ends: 133 [2020-11-28 03:14:43,407 INFO L226 Difference]: Without dead ends: 129 [2020-11-28 03:14:43,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:14:43,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-11-28 03:14:43,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2020-11-28 03:14:43,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-28 03:14:43,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2020-11-28 03:14:43,460 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 7 [2020-11-28 03:14:43,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:43,460 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2020-11-28 03:14:43,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:14:43,461 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2020-11-28 03:14:43,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:14:43,461 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:43,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:43,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:14:43,462 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:14:43,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:43,463 INFO L82 PathProgramCache]: Analyzing trace with hash 2076013177, now seen corresponding path program 1 times [2020-11-28 03:14:43,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:43,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836582787] [2020-11-28 03:14:43,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:43,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:43,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836582787] [2020-11-28 03:14:43,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:43,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:14:43,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29259843] [2020-11-28 03:14:43,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:14:43,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:43,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:14:43,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:14:43,600 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand 4 states. [2020-11-28 03:14:44,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:44,020 INFO L93 Difference]: Finished difference Result 119 states and 129 transitions. [2020-11-28 03:14:44,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:14:44,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:14:44,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:44,023 INFO L225 Difference]: With dead ends: 119 [2020-11-28 03:14:44,023 INFO L226 Difference]: Without dead ends: 119 [2020-11-28 03:14:44,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:14:44,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-11-28 03:14:44,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2020-11-28 03:14:44,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-28 03:14:44,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 125 transitions. [2020-11-28 03:14:44,050 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 125 transitions. Word has length 7 [2020-11-28 03:14:44,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:44,051 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 125 transitions. [2020-11-28 03:14:44,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:14:44,051 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 125 transitions. [2020-11-28 03:14:44,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:14:44,053 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:44,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:44,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:14:44,054 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:14:44,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:44,057 INFO L82 PathProgramCache]: Analyzing trace with hash 244643326, now seen corresponding path program 1 times [2020-11-28 03:14:44,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:44,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241854294] [2020-11-28 03:14:44,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:44,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:44,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:44,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241854294] [2020-11-28 03:14:44,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:44,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:14:44,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781371213] [2020-11-28 03:14:44,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:14:44,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:44,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:14:44,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:14:44,262 INFO L87 Difference]: Start difference. First operand 115 states and 125 transitions. Second operand 6 states. [2020-11-28 03:14:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:45,160 INFO L93 Difference]: Finished difference Result 228 states and 249 transitions. [2020-11-28 03:14:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:14:45,161 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-28 03:14:45,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:45,164 INFO L225 Difference]: With dead ends: 228 [2020-11-28 03:14:45,165 INFO L226 Difference]: Without dead ends: 228 [2020-11-28 03:14:45,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:14:45,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-11-28 03:14:45,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 114. [2020-11-28 03:14:45,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-28 03:14:45,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2020-11-28 03:14:45,181 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 14 [2020-11-28 03:14:45,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:45,182 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2020-11-28 03:14:45,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:14:45,182 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2020-11-28 03:14:45,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:14:45,183 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:45,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:45,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:14:45,184 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:14:45,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:45,184 INFO L82 PathProgramCache]: Analyzing trace with hash 244643327, now seen corresponding path program 1 times [2020-11-28 03:14:45,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:45,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708719050] [2020-11-28 03:14:45,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:45,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:45,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:45,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708719050] [2020-11-28 03:14:45,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:45,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:14:45,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529719298] [2020-11-28 03:14:45,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:14:45,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:45,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:14:45,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:14:45,384 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand 6 states. [2020-11-28 03:14:46,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:46,173 INFO L93 Difference]: Finished difference Result 203 states and 222 transitions. [2020-11-28 03:14:46,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:14:46,174 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-28 03:14:46,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:46,177 INFO L225 Difference]: With dead ends: 203 [2020-11-28 03:14:46,177 INFO L226 Difference]: Without dead ends: 203 [2020-11-28 03:14:46,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:14:46,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-11-28 03:14:46,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 113. [2020-11-28 03:14:46,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-28 03:14:46,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 123 transitions. [2020-11-28 03:14:46,196 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 123 transitions. Word has length 14 [2020-11-28 03:14:46,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:46,197 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 123 transitions. [2020-11-28 03:14:46,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:14:46,197 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 123 transitions. [2020-11-28 03:14:46,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:14:46,198 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:46,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:46,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:14:46,199 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:14:46,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:46,199 INFO L82 PathProgramCache]: Analyzing trace with hash 264916741, now seen corresponding path program 1 times [2020-11-28 03:14:46,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:46,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118942132] [2020-11-28 03:14:46,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:46,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:46,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118942132] [2020-11-28 03:14:46,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:46,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:14:46,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063714249] [2020-11-28 03:14:46,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:14:46,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:46,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:14:46,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:46,381 INFO L87 Difference]: Start difference. First operand 113 states and 123 transitions. Second operand 5 states. [2020-11-28 03:14:46,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:46,714 INFO L93 Difference]: Finished difference Result 117 states and 126 transitions. [2020-11-28 03:14:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:14:46,715 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-28 03:14:46,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:46,716 INFO L225 Difference]: With dead ends: 117 [2020-11-28 03:14:46,717 INFO L226 Difference]: Without dead ends: 117 [2020-11-28 03:14:46,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:14:46,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-11-28 03:14:46,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 108. [2020-11-28 03:14:46,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-28 03:14:46,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2020-11-28 03:14:46,730 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 16 [2020-11-28 03:14:46,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:46,731 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2020-11-28 03:14:46,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:14:46,731 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2020-11-28 03:14:46,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:14:46,732 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:46,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:46,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:14:46,733 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:14:46,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:46,734 INFO L82 PathProgramCache]: Analyzing trace with hash 264916742, now seen corresponding path program 1 times [2020-11-28 03:14:46,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:46,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737879849] [2020-11-28 03:14:46,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:47,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:47,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:47,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737879849] [2020-11-28 03:14:47,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:47,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:14:47,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183380274] [2020-11-28 03:14:47,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:14:47,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:47,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:14:47,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:14:47,029 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand 7 states. [2020-11-28 03:14:47,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:47,527 INFO L93 Difference]: Finished difference Result 127 states and 142 transitions. [2020-11-28 03:14:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:14:47,528 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-11-28 03:14:47,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:47,529 INFO L225 Difference]: With dead ends: 127 [2020-11-28 03:14:47,529 INFO L226 Difference]: Without dead ends: 127 [2020-11-28 03:14:47,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:14:47,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-28 03:14:47,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 119. [2020-11-28 03:14:47,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-11-28 03:14:47,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 135 transitions. [2020-11-28 03:14:47,539 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 135 transitions. Word has length 16 [2020-11-28 03:14:47,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:47,539 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 135 transitions. [2020-11-28 03:14:47,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:14:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 135 transitions. [2020-11-28 03:14:47,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:14:47,554 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:47,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:47,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:14:47,555 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:14:47,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:47,555 INFO L82 PathProgramCache]: Analyzing trace with hash -2015222079, now seen corresponding path program 1 times [2020-11-28 03:14:47,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:47,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843710130] [2020-11-28 03:14:47,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:47,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:47,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:47,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843710130] [2020-11-28 03:14:47,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:47,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:14:47,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106906009] [2020-11-28 03:14:47,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:14:47,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:47,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:14:47,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:14:47,654 INFO L87 Difference]: Start difference. First operand 119 states and 135 transitions. Second operand 7 states. [2020-11-28 03:14:48,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:48,270 INFO L93 Difference]: Finished difference Result 166 states and 189 transitions. [2020-11-28 03:14:48,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:14:48,271 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-28 03:14:48,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:48,273 INFO L225 Difference]: With dead ends: 166 [2020-11-28 03:14:48,273 INFO L226 Difference]: Without dead ends: 166 [2020-11-28 03:14:48,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:14:48,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-11-28 03:14:48,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 118. [2020-11-28 03:14:48,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-11-28 03:14:48,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 134 transitions. [2020-11-28 03:14:48,283 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 134 transitions. Word has length 19 [2020-11-28 03:14:48,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:48,283 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 134 transitions. [2020-11-28 03:14:48,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:14:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 134 transitions. [2020-11-28 03:14:48,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:14:48,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:48,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:48,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:14:48,285 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:14:48,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:48,286 INFO L82 PathProgramCache]: Analyzing trace with hash -2015222078, now seen corresponding path program 1 times [2020-11-28 03:14:48,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:48,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542714092] [2020-11-28 03:14:48,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:48,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:48,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:48,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542714092] [2020-11-28 03:14:48,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:48,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:14:48,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084032955] [2020-11-28 03:14:48,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:14:48,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:48,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:14:48,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:14:48,411 INFO L87 Difference]: Start difference. First operand 118 states and 134 transitions. Second operand 7 states. [2020-11-28 03:14:49,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:49,072 INFO L93 Difference]: Finished difference Result 168 states and 195 transitions. [2020-11-28 03:14:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:14:49,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-28 03:14:49,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:49,075 INFO L225 Difference]: With dead ends: 168 [2020-11-28 03:14:49,075 INFO L226 Difference]: Without dead ends: 168 [2020-11-28 03:14:49,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:14:49,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-11-28 03:14:49,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 104. [2020-11-28 03:14:49,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-28 03:14:49,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2020-11-28 03:14:49,082 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 19 [2020-11-28 03:14:49,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:49,088 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2020-11-28 03:14:49,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:14:49,088 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2020-11-28 03:14:49,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:14:49,092 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:49,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:49,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:14:49,095 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:14:49,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:49,096 INFO L82 PathProgramCache]: Analyzing trace with hash 140607626, now seen corresponding path program 1 times [2020-11-28 03:14:49,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:49,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478701440] [2020-11-28 03:14:49,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:49,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:49,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:49,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478701440] [2020-11-28 03:14:49,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:49,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:14:49,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146926154] [2020-11-28 03:14:49,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:14:49,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:49,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:14:49,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:49,226 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand 5 states. [2020-11-28 03:14:49,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:49,535 INFO L93 Difference]: Finished difference Result 134 states and 151 transitions. [2020-11-28 03:14:49,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:14:49,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-28 03:14:49,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:49,537 INFO L225 Difference]: With dead ends: 134 [2020-11-28 03:14:49,537 INFO L226 Difference]: Without dead ends: 134 [2020-11-28 03:14:49,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:14:49,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-11-28 03:14:49,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 104. [2020-11-28 03:14:49,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-28 03:14:49,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 117 transitions. [2020-11-28 03:14:49,544 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 117 transitions. Word has length 21 [2020-11-28 03:14:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:49,546 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 117 transitions. [2020-11-28 03:14:49,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:14:49,546 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 117 transitions. [2020-11-28 03:14:49,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:14:49,552 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:49,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:49,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:14:49,553 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:14:49,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:49,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1642062954, now seen corresponding path program 1 times [2020-11-28 03:14:49,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:49,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214372336] [2020-11-28 03:14:49,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:14:49,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:14:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:14:49,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:14:49,667 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:14:49,667 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:14:49,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:14:49,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:14:49 BoogieIcfgContainer [2020-11-28 03:14:49,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:14:49,728 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:14:49,728 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:14:49,728 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:14:49,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:42" (3/4) ... [2020-11-28 03:14:49,733 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:14:49,803 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_95dfbff2-b7f6-4dc4-a5fb-adde9bb41826/bin/uautomizer/witness.graphml [2020-11-28 03:14:49,803 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:14:49,806 INFO L168 Benchmark]: Toolchain (without parser) took 9511.36 ms. Allocated memory was 109.1 MB in the beginning and 184.5 MB in the end (delta: 75.5 MB). Free memory was 81.8 MB in the beginning and 106.5 MB in the end (delta: -24.6 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:49,807 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 109.1 MB. Free memory is still 66.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:14:49,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.14 ms. Allocated memory is still 109.1 MB. Free memory was 81.6 MB in the beginning and 72.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:49,808 INFO L168 Benchmark]: Boogie Preprocessor took 77.66 ms. Allocated memory is still 109.1 MB. Free memory was 72.4 MB in the beginning and 69.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:49,809 INFO L168 Benchmark]: RCFGBuilder took 1175.08 ms. Allocated memory was 109.1 MB in the beginning and 148.9 MB in the end (delta: 39.8 MB). Free memory was 69.3 MB in the beginning and 82.7 MB in the end (delta: -13.3 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:49,810 INFO L168 Benchmark]: TraceAbstraction took 7386.64 ms. Allocated memory was 148.9 MB in the beginning and 184.5 MB in the end (delta: 35.7 MB). Free memory was 81.9 MB in the beginning and 108.6 MB in the end (delta: -26.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:49,810 INFO L168 Benchmark]: Witness Printer took 74.89 ms. Allocated memory is still 184.5 MB. Free memory was 108.6 MB in the beginning and 106.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:49,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 109.1 MB. Free memory is still 66.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 790.14 ms. Allocated memory is still 109.1 MB. Free memory was 81.6 MB in the beginning and 72.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.66 ms. Allocated memory is still 109.1 MB. Free memory was 72.4 MB in the beginning and 69.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1175.08 ms. Allocated memory was 109.1 MB in the beginning and 148.9 MB in the end (delta: 39.8 MB). Free memory was 69.3 MB in the beginning and 82.7 MB in the end (delta: -13.3 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7386.64 ms. Allocated memory was 148.9 MB in the beginning and 184.5 MB in the end (delta: 35.7 MB). Free memory was 81.9 MB in the beginning and 108.6 MB in the end (delta: -26.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Witness Printer took 74.89 ms. Allocated memory is still 184.5 MB. Free memory was 108.6 MB in the beginning and 106.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L996] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L997] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L998] COND FALSE !(__VERIFIER_nondet_int()) [L998] COND TRUE __VERIFIER_nondet_int() [L998] head->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L998] head->opt = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L999] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1001] COND FALSE !(__VERIFIER_nondet_int()) [L1004] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1005] COND TRUE x != ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1007] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1007] EXPR x->data == 2 && x->opt == x VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1, x->data == 2 && x->opt == x=0] [L1007] COND TRUE !(x->data == 2 && x->opt == x) [L1007] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "sll-optional-2.c", 16, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 135 locations, 60 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 852 SDtfs, 1063 SDslu, 1263 SDs, 0 SdLazy, 2924 SolverSat, 137 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 373 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 9738 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...