./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 816de43cb6e982d6a1f876f61d346a36add599ac ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:29:31,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:29:31,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:29:31,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:29:31,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:29:31,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:29:31,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:29:31,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:29:31,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:29:31,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:29:31,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:29:31,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:29:31,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:29:31,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:29:31,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:29:31,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:29:31,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:29:31,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:29:31,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:29:31,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:29:31,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:29:31,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:29:31,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:29:31,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:29:31,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:29:31,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:29:31,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:29:31,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:29:31,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:29:31,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:29:31,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:29:31,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:29:31,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:29:31,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:29:32,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:29:32,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:29:32,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:29:32,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:29:32,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:29:32,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:29:32,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:29:32,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-30 00:29:32,056 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:29:32,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:29:32,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:29:32,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:29:32,059 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:29:32,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:29:32,059 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:29:32,060 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:29:32,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:29:32,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:29:32,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:29:32,061 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 00:29:32,062 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 00:29:32,062 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 00:29:32,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:29:32,062 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 00:29:32,063 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:29:32,063 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:29:32,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:29:32,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:29:32,064 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:29:32,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:29:32,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:29:32,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:29:32,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:29:32,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:29:32,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:29:32,065 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:29:32,065 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_e3988b0b-a26b-4043-a1cb-b820401d0c7b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 816de43cb6e982d6a1f876f61d346a36add599ac [2020-11-30 00:29:32,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:29:32,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:29:32,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:29:32,439 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:29:32,441 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:29:32,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i [2020-11-30 00:29:32,517 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer/data/b615e10d6/83c16c9fcfca41ff8d6b65adb2638125/FLAG2bc5fb5ff [2020-11-30 00:29:33,131 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:29:33,132 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/sv-benchmarks/c/list-ext-properties/test-0158_1-3.i [2020-11-30 00:29:33,160 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer/data/b615e10d6/83c16c9fcfca41ff8d6b65adb2638125/FLAG2bc5fb5ff [2020-11-30 00:29:33,419 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer/data/b615e10d6/83c16c9fcfca41ff8d6b65adb2638125 [2020-11-30 00:29:33,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:29:33,424 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 00:29:33,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:33,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:29:33,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:29:33,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:33" (1/1) ... [2020-11-30 00:29:33,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a45b67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:33, skipping insertion in model container [2020-11-30 00:29:33,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:33" (1/1) ... [2020-11-30 00:29:33,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:29:33,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:29:34,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:34,034 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:29:34,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:34,193 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:29:34,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:34 WrapperNode [2020-11-30 00:29:34,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:34,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:29:34,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:29:34,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:29:34,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:34" (1/1) ... [2020-11-30 00:29:34,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:34" (1/1) ... [2020-11-30 00:29:34,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:34" (1/1) ... [2020-11-30 00:29:34,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:34" (1/1) ... [2020-11-30 00:29:34,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:34" (1/1) ... [2020-11-30 00:29:34,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:34" (1/1) ... [2020-11-30 00:29:34,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:34" (1/1) ... [2020-11-30 00:29:34,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:29:34,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:29:34,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:29:34,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:29:34,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/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 [2020-11-30 00:29:34,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-30 00:29:34,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:29:34,370 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-30 00:29:34,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-30 00:29:34,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-30 00:29:34,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-30 00:29:34,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-30 00:29:34,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-30 00:29:34,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-30 00:29:34,374 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-30 00:29:34,375 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-30 00:29:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-30 00:29:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-30 00:29:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-30 00:29:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:29:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-30 00:29:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-30 00:29:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-30 00:29:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-30 00:29:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-30 00:29:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-30 00:29:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-30 00:29:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-30 00:29:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-30 00:29:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-30 00:29:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-30 00:29:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-30 00:29:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-30 00:29:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-30 00:29:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-30 00:29:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-30 00:29:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-30 00:29:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-30 00:29:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-30 00:29:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-30 00:29:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-30 00:29:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-30 00:29:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-30 00:29:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-30 00:29:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-30 00:29:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-30 00:29:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-30 00:29:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-30 00:29:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-30 00:29:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-30 00:29:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-30 00:29:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-30 00:29:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-30 00:29:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-30 00:29:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-30 00:29:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-30 00:29:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-30 00:29:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-30 00:29:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-30 00:29:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-30 00:29:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-30 00:29:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-30 00:29:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-30 00:29:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-30 00:29:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-30 00:29:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-30 00:29:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-30 00:29:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-30 00:29:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-30 00:29:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-30 00:29:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-30 00:29:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-30 00:29:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-30 00:29:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-30 00:29:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-30 00:29:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-30 00:29:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-30 00:29:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-30 00:29:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-30 00:29:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-30 00:29:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-30 00:29:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-30 00:29:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-30 00:29:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-30 00:29:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-30 00:29:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-30 00:29:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-30 00:29:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-30 00:29:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-30 00:29:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-30 00:29:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-30 00:29:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-30 00:29:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-30 00:29:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-30 00:29:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-30 00:29:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-30 00:29:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-30 00:29:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-30 00:29:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-30 00:29:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-30 00:29:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-30 00:29:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-30 00:29:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-30 00:29:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-30 00:29:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-30 00:29:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-30 00:29:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-30 00:29:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-30 00:29:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-30 00:29:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-30 00:29:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-30 00:29:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-30 00:29:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-30 00:29:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-30 00:29:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-30 00:29:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-30 00:29:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-30 00:29:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-30 00:29:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-30 00:29:34,406 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-30 00:29:34,406 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-30 00:29:34,406 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-30 00:29:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-30 00:29:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-30 00:29:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-30 00:29:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-30 00:29:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-30 00:29:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-30 00:29:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:29:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 00:29:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 00:29:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:29:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:29:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:29:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-30 00:29:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:29:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:29:35,061 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:29:35,062 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-30 00:29:35,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:35 BoogieIcfgContainer [2020-11-30 00:29:35,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:29:35,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:29:35,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:29:35,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:29:35,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:29:33" (1/3) ... [2020-11-30 00:29:35,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362fa550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:29:35, skipping insertion in model container [2020-11-30 00:29:35,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:34" (2/3) ... [2020-11-30 00:29:35,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362fa550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:29:35, skipping insertion in model container [2020-11-30 00:29:35,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:35" (3/3) ... [2020-11-30 00:29:35,087 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-3.i [2020-11-30 00:29:35,106 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:29:35,111 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-11-30 00:29:35,126 INFO L253 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-11-30 00:29:35,149 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:29:35,149 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 00:29:35,150 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:29:35,150 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:29:35,150 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:29:35,150 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:29:35,150 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:29:35,151 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:29:35,168 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-11-30 00:29:35,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:29:35,177 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:35,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:35,179 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-30 00:29:35,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:35,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1742406932, now seen corresponding path program 1 times [2020-11-30 00:29:35,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:35,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312587137] [2020-11-30 00:29:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:35,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:35,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:35,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312587137] [2020-11-30 00:29:35,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:35,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:35,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799891425] [2020-11-30 00:29:35,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:29:35,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:35,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:29:35,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:35,589 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2020-11-30 00:29:35,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:35,780 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-11-30 00:29:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:29:35,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-30 00:29:35,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:35,791 INFO L225 Difference]: With dead ends: 40 [2020-11-30 00:29:35,792 INFO L226 Difference]: Without dead ends: 37 [2020-11-30 00:29:35,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:35,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-30 00:29:35,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-30 00:29:35,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-30 00:29:35,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-11-30 00:29:35,839 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 7 [2020-11-30 00:29:35,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:35,840 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-11-30 00:29:35,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:29:35,840 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-11-30 00:29:35,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:29:35,841 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:35,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:35,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:29:35,841 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-30 00:29:35,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:35,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1742406931, now seen corresponding path program 1 times [2020-11-30 00:29:35,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:35,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278055915] [2020-11-30 00:29:35,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:35,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:35,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:35,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278055915] [2020-11-30 00:29:35,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:35,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:35,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261036118] [2020-11-30 00:29:35,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:29:35,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:35,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:29:36,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:36,000 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 4 states. [2020-11-30 00:29:36,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:36,121 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2020-11-30 00:29:36,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:29:36,121 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-30 00:29:36,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:36,123 INFO L225 Difference]: With dead ends: 30 [2020-11-30 00:29:36,123 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 00:29:36,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:36,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 00:29:36,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 00:29:36,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 00:29:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-11-30 00:29:36,132 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2020-11-30 00:29:36,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:36,132 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-11-30 00:29:36,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:29:36,132 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-11-30 00:29:36,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:29:36,135 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:36,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:36,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:29:36,136 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-30 00:29:36,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:36,138 INFO L82 PathProgramCache]: Analyzing trace with hash -689389540, now seen corresponding path program 1 times [2020-11-30 00:29:36,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:36,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248751952] [2020-11-30 00:29:36,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:36,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:36,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:36,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248751952] [2020-11-30 00:29:36,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:36,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:29:36,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901044148] [2020-11-30 00:29:36,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:29:36,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:36,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:29:36,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:29:36,343 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 6 states. [2020-11-30 00:29:36,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:36,467 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-11-30 00:29:36,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:29:36,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-30 00:29:36,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:36,468 INFO L225 Difference]: With dead ends: 29 [2020-11-30 00:29:36,469 INFO L226 Difference]: Without dead ends: 29 [2020-11-30 00:29:36,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:29:36,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-30 00:29:36,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-30 00:29:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 00:29:36,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-11-30 00:29:36,474 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2020-11-30 00:29:36,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:36,475 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-11-30 00:29:36,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:29:36,475 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-11-30 00:29:36,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:29:36,476 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:36,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:36,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:29:36,477 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-30 00:29:36,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:36,478 INFO L82 PathProgramCache]: Analyzing trace with hash 103760825, now seen corresponding path program 1 times [2020-11-30 00:29:36,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:36,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220651329] [2020-11-30 00:29:36,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:36,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:36,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:36,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220651329] [2020-11-30 00:29:36,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:36,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:29:36,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538604662] [2020-11-30 00:29:36,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:29:36,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:36,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:29:36,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:29:36,642 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-11-30 00:29:36,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:36,801 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-11-30 00:29:36,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:29:36,801 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-30 00:29:36,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:36,802 INFO L225 Difference]: With dead ends: 28 [2020-11-30 00:29:36,803 INFO L226 Difference]: Without dead ends: 28 [2020-11-30 00:29:36,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:29:36,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-30 00:29:36,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-30 00:29:36,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-30 00:29:36,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-11-30 00:29:36,808 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 16 [2020-11-30 00:29:36,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:36,808 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-11-30 00:29:36,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:29:36,809 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-11-30 00:29:36,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:29:36,811 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:36,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:36,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:29:36,813 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-30 00:29:36,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:36,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1078381634, now seen corresponding path program 1 times [2020-11-30 00:29:36,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:36,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033915406] [2020-11-30 00:29:36,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:36,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:36,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:36,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033915406] [2020-11-30 00:29:36,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:36,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:29:36,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530722549] [2020-11-30 00:29:36,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:29:36,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:36,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:29:36,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:29:36,942 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 6 states. [2020-11-30 00:29:37,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:37,081 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-11-30 00:29:37,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:29:37,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-30 00:29:37,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:37,083 INFO L225 Difference]: With dead ends: 27 [2020-11-30 00:29:37,083 INFO L226 Difference]: Without dead ends: 27 [2020-11-30 00:29:37,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:29:37,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-30 00:29:37,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-30 00:29:37,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-30 00:29:37,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-11-30 00:29:37,088 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 17 [2020-11-30 00:29:37,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:37,089 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-11-30 00:29:37,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:29:37,089 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-11-30 00:29:37,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:29:37,090 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:37,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:37,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:29:37,091 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-30 00:29:37,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:37,091 INFO L82 PathProgramCache]: Analyzing trace with hash 929907803, now seen corresponding path program 1 times [2020-11-30 00:29:37,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:37,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426755639] [2020-11-30 00:29:37,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:37,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:37,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:37,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426755639] [2020-11-30 00:29:37,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:37,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:29:37,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614313790] [2020-11-30 00:29:37,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:29:37,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:37,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:29:37,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:29:37,217 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 7 states. [2020-11-30 00:29:37,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:37,363 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-11-30 00:29:37,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:29:37,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-30 00:29:37,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:37,364 INFO L225 Difference]: With dead ends: 26 [2020-11-30 00:29:37,364 INFO L226 Difference]: Without dead ends: 26 [2020-11-30 00:29:37,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:29:37,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-30 00:29:37,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-11-30 00:29:37,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-30 00:29:37,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-11-30 00:29:37,368 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2020-11-30 00:29:37,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:37,369 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-11-30 00:29:37,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:29:37,369 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-11-30 00:29:37,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 00:29:37,370 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:37,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:37,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:29:37,371 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-30 00:29:37,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:37,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1237629088, now seen corresponding path program 1 times [2020-11-30 00:29:37,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:37,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068035502] [2020-11-30 00:29:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:37,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:37,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:37,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068035502] [2020-11-30 00:29:37,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:37,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:29:37,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644073057] [2020-11-30 00:29:37,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:29:37,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:37,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:29:37,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:29:37,504 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 7 states. [2020-11-30 00:29:37,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:37,669 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-11-30 00:29:37,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:29:37,670 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-30 00:29:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:37,671 INFO L225 Difference]: With dead ends: 25 [2020-11-30 00:29:37,671 INFO L226 Difference]: Without dead ends: 25 [2020-11-30 00:29:37,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:29:37,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-30 00:29:37,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-30 00:29:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-30 00:29:37,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-11-30 00:29:37,675 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 19 [2020-11-30 00:29:37,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:37,676 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-11-30 00:29:37,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:29:37,676 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-11-30 00:29:37,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:29:37,677 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:37,677 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] [2020-11-30 00:29:37,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:29:37,677 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-11-30 00:29:37,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:37,678 INFO L82 PathProgramCache]: Analyzing trace with hash 288204029, now seen corresponding path program 1 times [2020-11-30 00:29:37,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:37,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134485049] [2020-11-30 00:29:37,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:37,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:37,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:37,762 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:37,762 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:29:37,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:29:37,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:29:37 BoogieIcfgContainer [2020-11-30 00:29:37,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:29:37,794 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:29:37,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:29:37,795 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:29:37,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:35" (3/4) ... [2020-11-30 00:29:37,797 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:29:37,839 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e3988b0b-a26b-4043-a1cb-b820401d0c7b/bin/uautomizer/witness.graphml [2020-11-30 00:29:37,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:29:37,841 INFO L168 Benchmark]: Toolchain (without parser) took 4415.97 ms. Allocated memory was 119.5 MB in the beginning and 146.8 MB in the end (delta: 27.3 MB). Free memory was 86.9 MB in the beginning and 98.5 MB in the end (delta: -11.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:37,842 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 81.8 MB. Free memory was 42.1 MB in the beginning and 42.0 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:29:37,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.01 ms. Allocated memory is still 119.5 MB. Free memory was 86.9 MB in the beginning and 83.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:37,844 INFO L168 Benchmark]: Boogie Preprocessor took 92.35 ms. Allocated memory is still 119.5 MB. Free memory was 83.5 MB in the beginning and 81.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:37,845 INFO L168 Benchmark]: RCFGBuilder took 772.90 ms. Allocated memory is still 119.5 MB. Free memory was 81.0 MB in the beginning and 84.8 MB in the end (delta: -3.8 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:37,846 INFO L168 Benchmark]: TraceAbstraction took 2728.35 ms. Allocated memory was 119.5 MB in the beginning and 146.8 MB in the end (delta: 27.3 MB). Free memory was 84.2 MB in the beginning and 100.6 MB in the end (delta: -16.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:37,846 INFO L168 Benchmark]: Witness Printer took 44.80 ms. Allocated memory is still 146.8 MB. Free memory was 100.6 MB in the beginning and 98.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:29:37,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 81.8 MB. Free memory was 42.1 MB in the beginning and 42.0 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 770.01 ms. Allocated memory is still 119.5 MB. Free memory was 86.9 MB in the beginning and 83.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.35 ms. Allocated memory is still 119.5 MB. Free memory was 83.5 MB in the beginning and 81.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 772.90 ms. Allocated memory is still 119.5 MB. Free memory was 81.0 MB in the beginning and 84.8 MB in the end (delta: -3.8 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2728.35 ms. Allocated memory was 119.5 MB in the beginning and 146.8 MB in the end (delta: 27.3 MB). Free memory was 84.2 MB in the beginning and 100.6 MB in the end (delta: -16.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Witness Printer took 44.80 ms. Allocated memory is still 146.8 MB. Free memory was 100.6 MB in the beginning and 98.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 545]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L535] EXPR data.p0 VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}] [L535] void *ptr = data.p0; [L536] COND FALSE !(__VERIFIER_nondet_int()) [L539] data.str.p2 = 30 VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L541] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30, malloc(37U)={-1:0}, ptr={-1:0}] [L541] COND FALSE !(25 > data.str.p2) [L544] EXPR data.p0 VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L544] free(data.p0) VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L544] free(data.p0) VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L544] free(data.p0) [L545] free(ptr) VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L545] free(ptr) VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L545] free(ptr) VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 67 locations, 22 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 121 SDtfs, 201 SDslu, 159 SDs, 0 SdLazy, 374 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 7942 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...