./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/alternating_list-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_913107c9-3a75-40ce-84ea-fa1a670656df/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/alternating_list-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/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 da856cb29218eae000c82400da3ef1c667e9f55c ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:00:11,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:00:11,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:00:11,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:00:11,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:00:11,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:00:11,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:00:11,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:00:11,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:00:11,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:00:11,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:00:11,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:00:11,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:00:11,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:00:11,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:00:11,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:00:11,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:00:11,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:00:11,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:00:11,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:00:11,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:00:11,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:00:11,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:00:11,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:00:11,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:00:11,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:00:11,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:00:11,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:00:11,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:00:11,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:00:11,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:00:11,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:00:11,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:00:11,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:00:11,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:00:11,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:00:11,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:00:11,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:00:11,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:00:11,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:00:11,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:00:11,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-11-28 03:00:11,272 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:00:11,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:00:11,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:00:11,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:00:11,275 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:00:11,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:00:11,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:00:11,276 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:00:11,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:00:11,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:00:11,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:00:11,277 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:00:11,277 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:00:11,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:00:11,277 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:00:11,278 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:00:11,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:00:11,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:00:11,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:00:11,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:00:11,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:00:11,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:00:11,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:00:11,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:00:11,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:00:11,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:00:11,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:00:11,281 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_913107c9-3a75-40ce-84ea-fa1a670656df/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da856cb29218eae000c82400da3ef1c667e9f55c [2020-11-28 03:00:11,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:00:11,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:00:11,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:00:11,574 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:00:11,576 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:00:11,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/bin/uautomizer/../../sv-benchmarks/c/list-properties/alternating_list-2.i [2020-11-28 03:00:11,657 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/bin/uautomizer/data/7f198e98e/2f96da6822ed409b9900256f88585011/FLAGe582a02f3 [2020-11-28 03:00:12,181 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:00:12,182 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/sv-benchmarks/c/list-properties/alternating_list-2.i [2020-11-28 03:00:12,201 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/bin/uautomizer/data/7f198e98e/2f96da6822ed409b9900256f88585011/FLAGe582a02f3 [2020-11-28 03:00:12,658 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/bin/uautomizer/data/7f198e98e/2f96da6822ed409b9900256f88585011 [2020-11-28 03:00:12,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:00:12,662 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:00:12,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:00:12,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:00:12,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:00:12,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:00:12" (1/1) ... [2020-11-28 03:00:12,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca71aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:12, skipping insertion in model container [2020-11-28 03:00:12,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:00:12" (1/1) ... [2020-11-28 03:00:12,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:00:12,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:00:13,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:00:13,204 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:00:13,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:00:13,307 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:00:13,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:13 WrapperNode [2020-11-28 03:00:13,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:00:13,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:00:13,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:00:13,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:00:13,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:13" (1/1) ... [2020-11-28 03:00:13,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:13" (1/1) ... [2020-11-28 03:00:13,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:13" (1/1) ... [2020-11-28 03:00:13,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:13" (1/1) ... [2020-11-28 03:00:13,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:13" (1/1) ... [2020-11-28 03:00:13,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:13" (1/1) ... [2020-11-28 03:00:13,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:13" (1/1) ... [2020-11-28 03:00:13,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:00:13,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:00:13,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:00:13,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:00:13,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/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 03:00:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:00:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:00:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-28 03:00:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 03:00:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 03:00:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 03:00:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 03:00:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 03:00:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-11-28 03:00:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:00:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:00:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-28 03:00:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-28 03:00:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-28 03:00:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-28 03:00:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:00:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:00:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:00:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:00:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:00:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:00:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:00:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:00:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:00:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:00:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:00:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:00:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:00:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:00:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:00:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:00:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:00:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:00:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 03:00:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 03:00:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 03:00:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 03:00:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 03:00:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:00:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:00:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:00:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:00:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:00:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:00:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:00:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:00:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:00:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:00:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:00:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:00:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:00:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:00:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:00:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:00:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:00:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:00:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:00:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:00:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:00:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:00:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:00:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:00:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:00:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:00:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:00:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:00:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:00:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:00:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:00:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:00:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:00:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:00:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:00:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:00:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:00:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:00:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:00:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:00:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:00:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:00:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:00:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:00:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:00:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:00:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:00:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:00:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:00:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:00:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:00:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:00:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:00:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:00:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:00:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:00:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:00:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:00:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:00:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:00:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:00:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:00:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:00:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:00:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:00:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:00:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:00:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:00:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:00:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:00:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:00:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:00:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:00:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:00:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:00:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:00:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:00:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:00:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:00:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:00:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:00:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:00:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:00:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:00:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:00:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-11-28 03:00:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:00:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:00:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:00:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:00:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:00:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:00:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:00:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:00:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:00:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:00:13,864 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-11-28 03:00:14,172 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:00:14,172 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-11-28 03:00:14,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:14 BoogieIcfgContainer [2020-11-28 03:00:14,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:00:14,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:00:14,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:00:14,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:00:14,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:00:12" (1/3) ... [2020-11-28 03:00:14,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a3f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:00:14, skipping insertion in model container [2020-11-28 03:00:14,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:13" (2/3) ... [2020-11-28 03:00:14,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a3f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:00:14, skipping insertion in model container [2020-11-28 03:00:14,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:14" (3/3) ... [2020-11-28 03:00:14,185 INFO L111 eAbstractionObserver]: Analyzing ICFG alternating_list-2.i [2020-11-28 03:00:14,197 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:00:14,202 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2020-11-28 03:00:14,216 INFO L253 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2020-11-28 03:00:14,239 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:00:14,239 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:00:14,239 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:00:14,239 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:00:14,239 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:00:14,240 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:00:14,240 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:00:14,240 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:00:14,257 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2020-11-28 03:00:14,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:00:14,266 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:14,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:14,267 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:14,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:14,274 INFO L82 PathProgramCache]: Analyzing trace with hash -463735565, now seen corresponding path program 1 times [2020-11-28 03:00:14,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:14,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483890483] [2020-11-28 03:00:14,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:14,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:14,529 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 03:00:14,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483890483] [2020-11-28 03:00:14,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:14,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:00:14,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968188887] [2020-11-28 03:00:14,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:00:14,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:14,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:00:14,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:00:14,553 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2020-11-28 03:00:14,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:14,807 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2020-11-28 03:00:14,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:00:14,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-28 03:00:14,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:14,817 INFO L225 Difference]: With dead ends: 83 [2020-11-28 03:00:14,817 INFO L226 Difference]: Without dead ends: 76 [2020-11-28 03:00:14,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:00:14,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-28 03:00:14,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-28 03:00:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-28 03:00:14,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2020-11-28 03:00:14,892 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 10 [2020-11-28 03:00:14,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:14,893 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2020-11-28 03:00:14,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:00:14,893 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2020-11-28 03:00:14,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:00:14,894 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:14,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:14,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:00:14,896 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:14,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:14,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1490936265, now seen corresponding path program 1 times [2020-11-28 03:00:14,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:14,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254964151] [2020-11-28 03:00:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:15,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:15,094 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 03:00:15,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254964151] [2020-11-28 03:00:15,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:15,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:00:15,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736513141] [2020-11-28 03:00:15,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:00:15,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:15,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:00:15,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:00:15,098 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand 5 states. [2020-11-28 03:00:15,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:15,403 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2020-11-28 03:00:15,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:00:15,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-28 03:00:15,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:15,406 INFO L225 Difference]: With dead ends: 97 [2020-11-28 03:00:15,406 INFO L226 Difference]: Without dead ends: 97 [2020-11-28 03:00:15,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:15,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-11-28 03:00:15,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 77. [2020-11-28 03:00:15,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-28 03:00:15,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2020-11-28 03:00:15,422 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 11 [2020-11-28 03:00:15,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:15,422 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2020-11-28 03:00:15,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:00:15,422 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2020-11-28 03:00:15,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:00:15,423 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:15,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:15,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:00:15,423 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:15,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:15,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1490936264, now seen corresponding path program 1 times [2020-11-28 03:00:15,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:15,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294715789] [2020-11-28 03:00:15,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:15,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:15,581 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 03:00:15,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294715789] [2020-11-28 03:00:15,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:15,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:00:15,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241720660] [2020-11-28 03:00:15,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:00:15,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:15,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:00:15,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:00:15,587 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand 5 states. [2020-11-28 03:00:15,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:15,880 INFO L93 Difference]: Finished difference Result 104 states and 115 transitions. [2020-11-28 03:00:15,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:00:15,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-28 03:00:15,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:15,884 INFO L225 Difference]: With dead ends: 104 [2020-11-28 03:00:15,884 INFO L226 Difference]: Without dead ends: 104 [2020-11-28 03:00:15,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:15,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-11-28 03:00:15,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 93. [2020-11-28 03:00:15,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-28 03:00:15,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2020-11-28 03:00:15,900 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 11 [2020-11-28 03:00:15,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:15,901 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2020-11-28 03:00:15,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:00:15,901 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2020-11-28 03:00:15,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:00:15,907 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:15,907 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 03:00:15,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:00:15,908 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:15,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:15,909 INFO L82 PathProgramCache]: Analyzing trace with hash -574680799, now seen corresponding path program 1 times [2020-11-28 03:00:15,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:15,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33932124] [2020-11-28 03:00:15,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:16,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:16,018 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 03:00:16,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33932124] [2020-11-28 03:00:16,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:16,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:00:16,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84606283] [2020-11-28 03:00:16,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:00:16,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:16,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:00:16,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:00:16,020 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand 5 states. [2020-11-28 03:00:16,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:16,234 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2020-11-28 03:00:16,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:00:16,238 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-11-28 03:00:16,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:16,239 INFO L225 Difference]: With dead ends: 100 [2020-11-28 03:00:16,239 INFO L226 Difference]: Without dead ends: 100 [2020-11-28 03:00:16,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:16,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-28 03:00:16,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 94. [2020-11-28 03:00:16,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-11-28 03:00:16,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 106 transitions. [2020-11-28 03:00:16,250 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 106 transitions. Word has length 19 [2020-11-28 03:00:16,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:16,251 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 106 transitions. [2020-11-28 03:00:16,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:00:16,251 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2020-11-28 03:00:16,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 03:00:16,252 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:16,252 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] [2020-11-28 03:00:16,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:00:16,252 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:16,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:16,253 INFO L82 PathProgramCache]: Analyzing trace with hash 633071481, now seen corresponding path program 1 times [2020-11-28 03:00:16,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:16,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583001172] [2020-11-28 03:00:16,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:16,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:16,334 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 03:00:16,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583001172] [2020-11-28 03:00:16,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:16,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:00:16,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970329300] [2020-11-28 03:00:16,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:00:16,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:16,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:00:16,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:00:16,336 INFO L87 Difference]: Start difference. First operand 94 states and 106 transitions. Second operand 4 states. [2020-11-28 03:00:16,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:16,520 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2020-11-28 03:00:16,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:00:16,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-28 03:00:16,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:16,522 INFO L225 Difference]: With dead ends: 143 [2020-11-28 03:00:16,522 INFO L226 Difference]: Without dead ends: 143 [2020-11-28 03:00:16,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 03:00:16,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-11-28 03:00:16,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 103. [2020-11-28 03:00:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-28 03:00:16,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 119 transitions. [2020-11-28 03:00:16,536 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 119 transitions. Word has length 20 [2020-11-28 03:00:16,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:16,537 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 119 transitions. [2020-11-28 03:00:16,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:00:16,537 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 119 transitions. [2020-11-28 03:00:16,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 03:00:16,538 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:16,538 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] [2020-11-28 03:00:16,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:00:16,539 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:16,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:16,539 INFO L82 PathProgramCache]: Analyzing trace with hash 337246851, now seen corresponding path program 1 times [2020-11-28 03:00:16,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:16,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457951437] [2020-11-28 03:00:16,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:16,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:16,698 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 03:00:16,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457951437] [2020-11-28 03:00:16,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:16,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 03:00:16,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497646863] [2020-11-28 03:00:16,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:00:16,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:16,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:00:16,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:00:16,700 INFO L87 Difference]: Start difference. First operand 103 states and 119 transitions. Second operand 7 states. [2020-11-28 03:00:17,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:17,058 INFO L93 Difference]: Finished difference Result 144 states and 159 transitions. [2020-11-28 03:00:17,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:00:17,058 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-11-28 03:00:17,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:17,060 INFO L225 Difference]: With dead ends: 144 [2020-11-28 03:00:17,060 INFO L226 Difference]: Without dead ends: 144 [2020-11-28 03:00:17,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:00:17,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-28 03:00:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 106. [2020-11-28 03:00:17,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-28 03:00:17,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2020-11-28 03:00:17,073 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 20 [2020-11-28 03:00:17,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:17,073 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2020-11-28 03:00:17,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:00:17,074 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2020-11-28 03:00:17,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 03:00:17,074 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:17,075 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] [2020-11-28 03:00:17,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:00:17,075 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:17,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:17,076 INFO L82 PathProgramCache]: Analyzing trace with hash -635189694, now seen corresponding path program 1 times [2020-11-28 03:00:17,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:17,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695318672] [2020-11-28 03:00:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:17,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:17,150 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 03:00:17,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695318672] [2020-11-28 03:00:17,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:17,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:00:17,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366896405] [2020-11-28 03:00:17,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:00:17,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:17,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:00:17,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:17,152 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand 6 states. [2020-11-28 03:00:17,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:17,371 INFO L93 Difference]: Finished difference Result 115 states and 130 transitions. [2020-11-28 03:00:17,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:00:17,372 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-11-28 03:00:17,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:17,373 INFO L225 Difference]: With dead ends: 115 [2020-11-28 03:00:17,374 INFO L226 Difference]: Without dead ends: 115 [2020-11-28 03:00:17,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:00:17,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-28 03:00:17,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 108. [2020-11-28 03:00:17,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-28 03:00:17,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 124 transitions. [2020-11-28 03:00:17,381 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 124 transitions. Word has length 20 [2020-11-28 03:00:17,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:17,381 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 124 transitions. [2020-11-28 03:00:17,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:00:17,387 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 124 transitions. [2020-11-28 03:00:17,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:00:17,389 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:17,389 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 03:00:17,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:00:17,390 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:17,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:17,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1782539078, now seen corresponding path program 1 times [2020-11-28 03:00:17,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:17,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054288596] [2020-11-28 03:00:17,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:17,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:17,543 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 03:00:17,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054288596] [2020-11-28 03:00:17,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:17,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:00:17,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817349891] [2020-11-28 03:00:17,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:00:17,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:17,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:00:17,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:17,546 INFO L87 Difference]: Start difference. First operand 108 states and 124 transitions. Second operand 6 states. [2020-11-28 03:00:17,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:17,720 INFO L93 Difference]: Finished difference Result 122 states and 138 transitions. [2020-11-28 03:00:17,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:00:17,721 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-11-28 03:00:17,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:17,722 INFO L225 Difference]: With dead ends: 122 [2020-11-28 03:00:17,722 INFO L226 Difference]: Without dead ends: 118 [2020-11-28 03:00:17,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:00:17,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-11-28 03:00:17,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 111. [2020-11-28 03:00:17,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-11-28 03:00:17,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2020-11-28 03:00:17,728 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 21 [2020-11-28 03:00:17,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:17,729 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2020-11-28 03:00:17,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:00:17,729 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2020-11-28 03:00:17,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:00:17,730 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:17,730 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 03:00:17,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:00:17,730 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:17,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:17,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1783956134, now seen corresponding path program 1 times [2020-11-28 03:00:17,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:17,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485551226] [2020-11-28 03:00:17,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:17,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:17,811 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 03:00:17,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485551226] [2020-11-28 03:00:17,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:17,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:00:17,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758643922] [2020-11-28 03:00:17,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:00:17,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:17,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:00:17,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:17,818 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand 6 states. [2020-11-28 03:00:18,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:18,039 INFO L93 Difference]: Finished difference Result 119 states and 134 transitions. [2020-11-28 03:00:18,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:00:18,040 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-11-28 03:00:18,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:18,041 INFO L225 Difference]: With dead ends: 119 [2020-11-28 03:00:18,041 INFO L226 Difference]: Without dead ends: 119 [2020-11-28 03:00:18,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:00:18,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-11-28 03:00:18,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 112. [2020-11-28 03:00:18,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-28 03:00:18,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2020-11-28 03:00:18,052 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 21 [2020-11-28 03:00:18,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:18,052 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2020-11-28 03:00:18,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:00:18,053 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2020-11-28 03:00:18,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:00:18,053 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:18,054 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:18,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:00:18,054 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:18,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:18,055 INFO L82 PathProgramCache]: Analyzing trace with hash 119047172, now seen corresponding path program 1 times [2020-11-28 03:00:18,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:18,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670027528] [2020-11-28 03:00:18,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:18,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:18,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:18,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:00:18,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670027528] [2020-11-28 03:00:18,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:18,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:00:18,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726033387] [2020-11-28 03:00:18,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:00:18,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:18,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:00:18,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:00:18,160 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand 7 states. [2020-11-28 03:00:18,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:18,441 INFO L93 Difference]: Finished difference Result 116 states and 132 transitions. [2020-11-28 03:00:18,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:00:18,442 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-11-28 03:00:18,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:18,443 INFO L225 Difference]: With dead ends: 116 [2020-11-28 03:00:18,443 INFO L226 Difference]: Without dead ends: 116 [2020-11-28 03:00:18,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:00:18,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-28 03:00:18,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 109. [2020-11-28 03:00:18,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-28 03:00:18,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2020-11-28 03:00:18,454 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 21 [2020-11-28 03:00:18,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:18,454 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2020-11-28 03:00:18,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:00:18,454 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2020-11-28 03:00:18,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:00:18,455 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:18,455 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:18,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:00:18,455 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:18,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:18,456 INFO L82 PathProgramCache]: Analyzing trace with hash 119047173, now seen corresponding path program 1 times [2020-11-28 03:00:18,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:18,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008576237] [2020-11-28 03:00:18,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:18,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:18,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:00:18,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008576237] [2020-11-28 03:00:18,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:18,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:00:18,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422984542] [2020-11-28 03:00:18,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:00:18,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:18,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:00:18,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:00:18,576 INFO L87 Difference]: Start difference. First operand 109 states and 125 transitions. Second operand 7 states. [2020-11-28 03:00:19,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:19,004 INFO L93 Difference]: Finished difference Result 129 states and 143 transitions. [2020-11-28 03:00:19,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:00:19,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-11-28 03:00:19,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:19,005 INFO L225 Difference]: With dead ends: 129 [2020-11-28 03:00:19,005 INFO L226 Difference]: Without dead ends: 129 [2020-11-28 03:00:19,006 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 03:00:19,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-11-28 03:00:19,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 97. [2020-11-28 03:00:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-28 03:00:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2020-11-28 03:00:19,010 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 21 [2020-11-28 03:00:19,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:19,010 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2020-11-28 03:00:19,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:00:19,011 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2020-11-28 03:00:19,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:00:19,011 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:19,011 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] [2020-11-28 03:00:19,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:00:19,012 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:19,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:19,012 INFO L82 PathProgramCache]: Analyzing trace with hash -531934524, now seen corresponding path program 1 times [2020-11-28 03:00:19,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:19,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680365551] [2020-11-28 03:00:19,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:19,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:19,065 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 03:00:19,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680365551] [2020-11-28 03:00:19,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:19,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:00:19,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949272300] [2020-11-28 03:00:19,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:00:19,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:19,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:00:19,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:00:19,067 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand 5 states. [2020-11-28 03:00:19,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:19,248 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2020-11-28 03:00:19,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:00:19,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-28 03:00:19,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:19,250 INFO L225 Difference]: With dead ends: 96 [2020-11-28 03:00:19,250 INFO L226 Difference]: Without dead ends: 96 [2020-11-28 03:00:19,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:19,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-11-28 03:00:19,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-11-28 03:00:19,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-28 03:00:19,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-11-28 03:00:19,258 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 22 [2020-11-28 03:00:19,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:19,258 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-11-28 03:00:19,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:00:19,258 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-11-28 03:00:19,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 03:00:19,259 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:19,259 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] [2020-11-28 03:00:19,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:00:19,260 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:19,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:19,260 INFO L82 PathProgramCache]: Analyzing trace with hash 689899095, now seen corresponding path program 1 times [2020-11-28 03:00:19,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:19,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672668550] [2020-11-28 03:00:19,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:19,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:00:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:19,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:00:19,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672668550] [2020-11-28 03:00:19,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:19,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 03:00:19,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668955046] [2020-11-28 03:00:19,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:00:19,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:19,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:00:19,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:00:19,436 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 7 states. [2020-11-28 03:00:19,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:19,734 INFO L93 Difference]: Finished difference Result 110 states and 122 transitions. [2020-11-28 03:00:19,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:00:19,735 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-11-28 03:00:19,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:19,736 INFO L225 Difference]: With dead ends: 110 [2020-11-28 03:00:19,736 INFO L226 Difference]: Without dead ends: 103 [2020-11-28 03:00:19,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:00:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-11-28 03:00:19,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 89. [2020-11-28 03:00:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-28 03:00:19,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 102 transitions. [2020-11-28 03:00:19,740 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 102 transitions. Word has length 23 [2020-11-28 03:00:19,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:19,740 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 102 transitions. [2020-11-28 03:00:19,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:00:19,740 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 102 transitions. [2020-11-28 03:00:19,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:00:19,741 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:19,741 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 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 03:00:19,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:00:19,742 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-28 03:00:19,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:19,742 INFO L82 PathProgramCache]: Analyzing trace with hash -514536618, now seen corresponding path program 1 times [2020-11-28 03:00:19,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:19,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002818880] [2020-11-28 03:00:19,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:00:19,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:00:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:00:19,811 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:00:19,853 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:00:19,853 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:00:19,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:00:19,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:00:19 BoogieIcfgContainer [2020-11-28 03:00:19,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:00:19,916 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:00:19,917 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:00:19,917 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:00:19,917 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:14" (3/4) ... [2020-11-28 03:00:19,919 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:00:19,998 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_913107c9-3a75-40ce-84ea-fa1a670656df/bin/uautomizer/witness.graphml [2020-11-28 03:00:19,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:00:20,000 INFO L168 Benchmark]: Toolchain (without parser) took 7337.58 ms. Allocated memory was 77.6 MB in the beginning and 163.6 MB in the end (delta: 86.0 MB). Free memory was 45.4 MB in the beginning and 84.3 MB in the end (delta: -39.0 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:20,001 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 48.3 MB in the beginning and 48.2 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:00:20,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.77 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 45.2 MB in the beginning and 59.6 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:20,002 INFO L168 Benchmark]: Boogie Preprocessor took 62.94 ms. Allocated memory is still 94.4 MB. Free memory was 59.6 MB in the beginning and 56.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:20,003 INFO L168 Benchmark]: RCFGBuilder took 801.52 ms. Allocated memory is still 94.4 MB. Free memory was 56.9 MB in the beginning and 63.2 MB in the end (delta: -6.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:20,003 INFO L168 Benchmark]: TraceAbstraction took 5739.81 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 62.6 MB in the beginning and 86.4 MB in the end (delta: -23.8 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:20,003 INFO L168 Benchmark]: Witness Printer took 81.86 ms. Allocated memory is still 163.6 MB. Free memory was 86.4 MB in the beginning and 84.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:20,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 48.3 MB in the beginning and 48.2 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 645.77 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 45.2 MB in the beginning and 59.6 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.94 ms. Allocated memory is still 94.4 MB. Free memory was 59.6 MB in the beginning and 56.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 801.52 ms. Allocated memory is still 94.4 MB. Free memory was 56.9 MB in the beginning and 63.2 MB in the end (delta: -6.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5739.81 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 62.6 MB in the beginning and 86.4 MB in the end (delta: -23.8 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. * Witness Printer took 81.86 ms. Allocated memory is still 163.6 MB. Free memory was 86.4 MB in the beginning and 84.3 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: 12]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}] [L534] COND FALSE !(a == 0) VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}] [L535] List t; [L536] List p = a; VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] [L537] COND TRUE __VERIFIER_nondet_int() [L538] COND TRUE \read(flag) VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] [L539] p->h = 2 VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] [L540] flag = 0 VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={1:0}, p={1:0}] [L545] t = (List) malloc(sizeof(struct node)) VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={1:0}, p={1:0}, t={-1:0}] [L546] COND FALSE !(t == 0) VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={1:0}, p={1:0}, t={-1:0}] [L547] p->n = t VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={1:0}, p={1:0}, t={-1:0}] [L548] EXPR p->n VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={1:0}, p={1:0}, p->n={-1:0}, t={-1:0}] [L548] p = p->n [L537] COND FALSE !(__VERIFIER_nondet_int()) [L550] p->h = 3 VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={1:0}, p={-1:0}, t={-1:0}] [L551] p = a [L552] flag = 1 VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={1:0}, p={1:0}, t={-1:0}] [L553] EXPR p->h VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={1:0}, p={1:0}, p->h=2, t={-1:0}] [L553] COND TRUE p->h != 3 [L554] COND TRUE \read(flag) [L555] flag = 0 VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={1:0}, p={1:0}, t={-1:0}] [L556] EXPR p->h VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={-1:0}, malloc(sizeof(struct node))={1:0}, p={1:0}, p->h=2, t={-1:0}] [L556] COND TRUE p->h != 1 [L573] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "alternating_list-2.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 102 locations, 30 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.6s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 754 SDtfs, 1007 SDslu, 1083 SDs, 0 SdLazy, 2114 SolverSat, 147 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=9, 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, 13 MinimizatonAttempts, 189 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 270 NumberOfCodeBlocks, 270 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 18775 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 5/5 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...