./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-token-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_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-token-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/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 1d66a07d2a90ded112831066684eab385c0c1369 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:01:34,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:01:34,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:01:34,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:01:34,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:01:34,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:01:34,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:01:34,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:01:34,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:01:34,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:01:34,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:01:34,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:01:34,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:01:34,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:01:34,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:01:34,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:01:34,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:01:34,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:01:34,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:01:34,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:01:34,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:01:34,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:01:35,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:01:35,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:01:35,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:01:35,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:01:35,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:01:35,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:01:35,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:01:35,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:01:35,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:01:35,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:01:35,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:01:35,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:01:35,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:01:35,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:01:35,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:01:35,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:01:35,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:01:35,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:01:35,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:01:35,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-11-28 03:01:35,078 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:01:35,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:01:35,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:01:35,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:01:35,080 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:01:35,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:01:35,081 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:01:35,081 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:01:35,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:01:35,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:01:35,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:01:35,083 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:01:35,083 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:01:35,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:01:35,084 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:01:35,084 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:01:35,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:01:35,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:01:35,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:01:35,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:01:35,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:01:35,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:01:35,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:01:35,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:01:35,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:01:35,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:01:35,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:01:35,087 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_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d66a07d2a90ded112831066684eab385c0c1369 [2020-11-28 03:01:35,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:01:35,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:01:35,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:01:35,407 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:01:35,408 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:01:35,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-token-2.i [2020-11-28 03:01:35,502 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/bin/uautomizer/data/15959d998/167e5bcd96604c3aa3658bbd59b51bca/FLAG9e3d5e5bc [2020-11-28 03:01:36,039 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:01:36,043 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/sv-benchmarks/c/forester-heap/dll-token-2.i [2020-11-28 03:01:36,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/bin/uautomizer/data/15959d998/167e5bcd96604c3aa3658bbd59b51bca/FLAG9e3d5e5bc [2020-11-28 03:01:36,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/bin/uautomizer/data/15959d998/167e5bcd96604c3aa3658bbd59b51bca [2020-11-28 03:01:36,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:01:36,339 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:01:36,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:36,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:01:36,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:01:36,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:36" (1/1) ... [2020-11-28 03:01:36,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244b7e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:36, skipping insertion in model container [2020-11-28 03:01:36,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:36" (1/1) ... [2020-11-28 03:01:36,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:01:36,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:01:36,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:36,747 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:01:36,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:36,861 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:01:36,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:36 WrapperNode [2020-11-28 03:01:36,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:36,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:01:36,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:01:36,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:01:36,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:36" (1/1) ... [2020-11-28 03:01:36,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:36" (1/1) ... [2020-11-28 03:01:36,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:36" (1/1) ... [2020-11-28 03:01:36,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:36" (1/1) ... [2020-11-28 03:01:36,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:36" (1/1) ... [2020-11-28 03:01:36,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:36" (1/1) ... [2020-11-28 03:01:36,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:36" (1/1) ... [2020-11-28 03:01:36,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:01:36,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:01:36,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:01:36,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:01:36,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/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 03:01:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:01:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:01:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-28 03:01:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:01:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:01:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:01:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:01:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:01:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:01:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:01:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:01:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:01:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:01:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:01:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:01:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:01:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:01:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:01:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:01:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:01:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:01:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:01:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:01:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:01:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:01:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:01:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:01:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:01:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:01:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:01:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:01:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:01:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:01:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:01:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:01:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:01:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:01:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:01:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:01:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:01:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:01:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:01:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:01:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:01:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:01:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:01:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:01:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:01:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:01:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:01:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:01:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:01:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:01:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:01:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:01:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:01:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:01:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:01:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-28 03:01:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:01:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:01:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:01:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:01:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:01:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:01:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:01:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:01:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:01:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:01:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:01:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:01:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:01:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:01:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:01:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:01:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:01:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:01:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:01:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:01:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:01:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:01:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:01:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:01:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:01:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:01:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:01:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:01:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:01:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:01:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:01:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:01:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:01:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:01:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:01:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:01:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:01:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:01:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:01:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:01:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:01:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:01:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:01:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:01:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:01:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:01:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:01:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:01:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:01:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-28 03:01:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-28 03:01:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-28 03:01:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-28 03:01:37,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:01:37,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:01:37,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:01:37,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:01:37,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:01:37,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:01:37,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:01:37,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:01:37,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:01:37,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:01:37,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:01:37,948 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:01:37,948 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-11-28 03:01:37,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:37 BoogieIcfgContainer [2020-11-28 03:01:37,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:01:37,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:01:37,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:01:37,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:01:37,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:01:36" (1/3) ... [2020-11-28 03:01:37,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7063d941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:37, skipping insertion in model container [2020-11-28 03:01:37,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:36" (2/3) ... [2020-11-28 03:01:37,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7063d941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:37, skipping insertion in model container [2020-11-28 03:01:37,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:37" (3/3) ... [2020-11-28 03:01:37,967 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2020-11-28 03:01:37,978 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:01:37,982 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 59 error locations. [2020-11-28 03:01:37,995 INFO L253 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2020-11-28 03:01:38,016 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:01:38,016 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:01:38,017 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:01:38,017 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:01:38,017 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:01:38,017 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:01:38,017 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:01:38,017 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:01:38,045 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-11-28 03:01:38,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:01:38,053 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:38,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:38,054 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:38,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:38,060 INFO L82 PathProgramCache]: Analyzing trace with hash 2013402738, now seen corresponding path program 1 times [2020-11-28 03:01:38,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:38,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47001719] [2020-11-28 03:01:38,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:38,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:38,297 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 03:01:38,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47001719] [2020-11-28 03:01:38,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:38,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:01:38,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104918865] [2020-11-28 03:01:38,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:01:38,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:38,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:01:38,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:01:38,331 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 4 states. [2020-11-28 03:01:38,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:38,760 INFO L93 Difference]: Finished difference Result 152 states and 161 transitions. [2020-11-28 03:01:38,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:01:38,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:01:38,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:38,772 INFO L225 Difference]: With dead ends: 152 [2020-11-28 03:01:38,772 INFO L226 Difference]: Without dead ends: 149 [2020-11-28 03:01:38,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:01:38,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-11-28 03:01:38,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 130. [2020-11-28 03:01:38,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-28 03:01:38,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 137 transitions. [2020-11-28 03:01:38,846 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 137 transitions. Word has length 7 [2020-11-28 03:01:38,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:38,846 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 137 transitions. [2020-11-28 03:01:38,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:01:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 137 transitions. [2020-11-28 03:01:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:01:38,847 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:38,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:38,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:01:38,848 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:38,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:38,849 INFO L82 PathProgramCache]: Analyzing trace with hash 2013402739, now seen corresponding path program 1 times [2020-11-28 03:01:38,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:38,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431073081] [2020-11-28 03:01:38,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:38,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:38,989 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 03:01:38,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431073081] [2020-11-28 03:01:38,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:38,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:01:38,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927114758] [2020-11-28 03:01:38,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:01:38,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:38,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:01:38,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:01:38,993 INFO L87 Difference]: Start difference. First operand 130 states and 137 transitions. Second operand 4 states. [2020-11-28 03:01:39,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:39,302 INFO L93 Difference]: Finished difference Result 154 states and 162 transitions. [2020-11-28 03:01:39,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:01:39,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:01:39,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:39,303 INFO L225 Difference]: With dead ends: 154 [2020-11-28 03:01:39,303 INFO L226 Difference]: Without dead ends: 154 [2020-11-28 03:01:39,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:01:39,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-11-28 03:01:39,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2020-11-28 03:01:39,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-11-28 03:01:39,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 134 transitions. [2020-11-28 03:01:39,318 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 134 transitions. Word has length 7 [2020-11-28 03:01:39,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:39,319 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 134 transitions. [2020-11-28 03:01:39,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:01:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 134 transitions. [2020-11-28 03:01:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:01:39,320 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:39,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:39,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:01:39,321 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:39,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:39,322 INFO L82 PathProgramCache]: Analyzing trace with hash 735708995, now seen corresponding path program 1 times [2020-11-28 03:01:39,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:39,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119420184] [2020-11-28 03:01:39,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:39,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:39,458 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 03:01:39,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119420184] [2020-11-28 03:01:39,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:39,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:01:39,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077528876] [2020-11-28 03:01:39,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:01:39,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:39,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:01:39,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:01:39,469 INFO L87 Difference]: Start difference. First operand 127 states and 134 transitions. Second operand 5 states. [2020-11-28 03:01:39,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:39,847 INFO L93 Difference]: Finished difference Result 130 states and 139 transitions. [2020-11-28 03:01:39,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:01:39,848 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-28 03:01:39,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:39,849 INFO L225 Difference]: With dead ends: 130 [2020-11-28 03:01:39,849 INFO L226 Difference]: Without dead ends: 130 [2020-11-28 03:01:39,849 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 03:01:39,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-28 03:01:39,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 114. [2020-11-28 03:01:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-28 03:01:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-11-28 03:01:39,864 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 13 [2020-11-28 03:01:39,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:39,864 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-11-28 03:01:39,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:01:39,865 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-11-28 03:01:39,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:01:39,865 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:39,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:39,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:01:39,866 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:39,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:39,867 INFO L82 PathProgramCache]: Analyzing trace with hash 735708996, now seen corresponding path program 1 times [2020-11-28 03:01:39,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:39,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120642914] [2020-11-28 03:01:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:39,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:40,005 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 03:01:40,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120642914] [2020-11-28 03:01:40,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:40,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:01:40,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077032523] [2020-11-28 03:01:40,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:01:40,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:40,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:01:40,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:01:40,007 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand 5 states. [2020-11-28 03:01:40,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:40,445 INFO L93 Difference]: Finished difference Result 200 states and 213 transitions. [2020-11-28 03:01:40,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:01:40,446 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-28 03:01:40,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:40,448 INFO L225 Difference]: With dead ends: 200 [2020-11-28 03:01:40,448 INFO L226 Difference]: Without dead ends: 200 [2020-11-28 03:01:40,448 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 03:01:40,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-11-28 03:01:40,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 149. [2020-11-28 03:01:40,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-11-28 03:01:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 169 transitions. [2020-11-28 03:01:40,459 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 169 transitions. Word has length 13 [2020-11-28 03:01:40,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:40,460 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 169 transitions. [2020-11-28 03:01:40,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:01:40,460 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 169 transitions. [2020-11-28 03:01:40,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:01:40,461 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:40,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:40,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:01:40,461 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:40,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:40,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1653236418, now seen corresponding path program 1 times [2020-11-28 03:01:40,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:40,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376379805] [2020-11-28 03:01:40,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:40,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:40,593 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 03:01:40,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376379805] [2020-11-28 03:01:40,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:40,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:01:40,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027617623] [2020-11-28 03:01:40,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:01:40,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:40,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:01:40,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:40,600 INFO L87 Difference]: Start difference. First operand 149 states and 169 transitions. Second operand 6 states. [2020-11-28 03:01:41,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:41,155 INFO L93 Difference]: Finished difference Result 213 states and 240 transitions. [2020-11-28 03:01:41,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:01:41,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-28 03:01:41,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:41,159 INFO L225 Difference]: With dead ends: 213 [2020-11-28 03:01:41,159 INFO L226 Difference]: Without dead ends: 213 [2020-11-28 03:01:41,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:01:41,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-11-28 03:01:41,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 148. [2020-11-28 03:01:41,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-11-28 03:01:41,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 167 transitions. [2020-11-28 03:01:41,169 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 167 transitions. Word has length 15 [2020-11-28 03:01:41,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:41,170 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 167 transitions. [2020-11-28 03:01:41,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:01:41,170 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 167 transitions. [2020-11-28 03:01:41,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:01:41,170 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:41,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:41,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:01:41,171 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:41,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:41,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1653236417, now seen corresponding path program 1 times [2020-11-28 03:01:41,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:41,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868411548] [2020-11-28 03:01:41,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:41,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:41,316 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 03:01:41,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868411548] [2020-11-28 03:01:41,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:41,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:01:41,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351381247] [2020-11-28 03:01:41,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:01:41,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:41,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:01:41,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:41,318 INFO L87 Difference]: Start difference. First operand 148 states and 167 transitions. Second operand 6 states. [2020-11-28 03:01:41,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:41,889 INFO L93 Difference]: Finished difference Result 239 states and 269 transitions. [2020-11-28 03:01:41,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:01:41,889 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-28 03:01:41,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:41,891 INFO L225 Difference]: With dead ends: 239 [2020-11-28 03:01:41,891 INFO L226 Difference]: Without dead ends: 239 [2020-11-28 03:01:41,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:01:41,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-11-28 03:01:41,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 147. [2020-11-28 03:01:41,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-11-28 03:01:41,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 165 transitions. [2020-11-28 03:01:41,901 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 165 transitions. Word has length 15 [2020-11-28 03:01:41,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:41,902 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 165 transitions. [2020-11-28 03:01:41,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:01:41,902 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 165 transitions. [2020-11-28 03:01:41,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:01:41,903 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:41,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:41,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:01:41,904 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:41,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:41,904 INFO L82 PathProgramCache]: Analyzing trace with hash 356705479, now seen corresponding path program 1 times [2020-11-28 03:01:41,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:41,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737760556] [2020-11-28 03:01:41,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:42,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:42,014 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 03:01:42,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737760556] [2020-11-28 03:01:42,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:42,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:01:42,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697793605] [2020-11-28 03:01:42,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:01:42,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:42,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:01:42,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:42,021 INFO L87 Difference]: Start difference. First operand 147 states and 165 transitions. Second operand 6 states. [2020-11-28 03:01:42,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:42,362 INFO L93 Difference]: Finished difference Result 153 states and 167 transitions. [2020-11-28 03:01:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:01:42,362 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-28 03:01:42,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:42,363 INFO L225 Difference]: With dead ends: 153 [2020-11-28 03:01:42,363 INFO L226 Difference]: Without dead ends: 153 [2020-11-28 03:01:42,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:01:42,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-11-28 03:01:42,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 146. [2020-11-28 03:01:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-28 03:01:42,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2020-11-28 03:01:42,370 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 17 [2020-11-28 03:01:42,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:42,371 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2020-11-28 03:01:42,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:01:42,371 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2020-11-28 03:01:42,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:01:42,371 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:42,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:42,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:01:42,372 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:42,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:42,373 INFO L82 PathProgramCache]: Analyzing trace with hash 356705480, now seen corresponding path program 1 times [2020-11-28 03:01:42,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:42,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379249251] [2020-11-28 03:01:42,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:42,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:42,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379249251] [2020-11-28 03:01:42,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:42,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:01:42,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144823989] [2020-11-28 03:01:42,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:01:42,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:42,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:01:42,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:42,545 INFO L87 Difference]: Start difference. First operand 146 states and 163 transitions. Second operand 6 states. [2020-11-28 03:01:42,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:42,923 INFO L93 Difference]: Finished difference Result 145 states and 161 transitions. [2020-11-28 03:01:42,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:01:42,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-28 03:01:42,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:42,925 INFO L225 Difference]: With dead ends: 145 [2020-11-28 03:01:42,925 INFO L226 Difference]: Without dead ends: 145 [2020-11-28 03:01:42,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:01:42,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-11-28 03:01:42,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-11-28 03:01:42,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-11-28 03:01:42,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 161 transitions. [2020-11-28 03:01:42,934 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 161 transitions. Word has length 17 [2020-11-28 03:01:42,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:42,934 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 161 transitions. [2020-11-28 03:01:42,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:01:42,934 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 161 transitions. [2020-11-28 03:01:42,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:01:42,935 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:42,935 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 03:01:42,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:01:42,937 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:42,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:42,938 INFO L82 PathProgramCache]: Analyzing trace with hash -2100429503, now seen corresponding path program 1 times [2020-11-28 03:01:42,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:42,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794159499] [2020-11-28 03:01:42,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:43,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:43,150 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 03:01:43,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794159499] [2020-11-28 03:01:43,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:43,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-28 03:01:43,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300229804] [2020-11-28 03:01:43,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:01:43,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:43,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:01:43,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:01:43,159 INFO L87 Difference]: Start difference. First operand 145 states and 161 transitions. Second operand 11 states. [2020-11-28 03:01:44,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:44,172 INFO L93 Difference]: Finished difference Result 146 states and 159 transitions. [2020-11-28 03:01:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-28 03:01:44,173 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-11-28 03:01:44,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:44,174 INFO L225 Difference]: With dead ends: 146 [2020-11-28 03:01:44,174 INFO L226 Difference]: Without dead ends: 146 [2020-11-28 03:01:44,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-11-28 03:01:44,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-28 03:01:44,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 123. [2020-11-28 03:01:44,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-28 03:01:44,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 138 transitions. [2020-11-28 03:01:44,179 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 138 transitions. Word has length 19 [2020-11-28 03:01:44,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:44,180 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 138 transitions. [2020-11-28 03:01:44,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:01:44,180 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 138 transitions. [2020-11-28 03:01:44,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:01:44,181 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:44,181 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 03:01:44,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:01:44,181 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:44,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:44,182 INFO L82 PathProgramCache]: Analyzing trace with hash -2100429504, now seen corresponding path program 1 times [2020-11-28 03:01:44,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:44,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600956466] [2020-11-28 03:01:44,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:44,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:44,304 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 03:01:44,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600956466] [2020-11-28 03:01:44,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:44,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:01:44,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406229346] [2020-11-28 03:01:44,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:01:44,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:44,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:01:44,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:01:44,306 INFO L87 Difference]: Start difference. First operand 123 states and 138 transitions. Second operand 10 states. [2020-11-28 03:01:44,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:44,893 INFO L93 Difference]: Finished difference Result 126 states and 138 transitions. [2020-11-28 03:01:44,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:01:44,893 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-11-28 03:01:44,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:44,894 INFO L225 Difference]: With dead ends: 126 [2020-11-28 03:01:44,894 INFO L226 Difference]: Without dead ends: 126 [2020-11-28 03:01:44,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:01:44,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-28 03:01:44,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2020-11-28 03:01:44,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-11-28 03:01:44,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 137 transitions. [2020-11-28 03:01:44,899 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 137 transitions. Word has length 19 [2020-11-28 03:01:44,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:44,899 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 137 transitions. [2020-11-28 03:01:44,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:01:44,899 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 137 transitions. [2020-11-28 03:01:44,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 03:01:44,900 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:44,900 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 03:01:44,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:01:44,901 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:44,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:44,901 INFO L82 PathProgramCache]: Analyzing trace with hash 863887249, now seen corresponding path program 1 times [2020-11-28 03:01:44,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:44,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538779257] [2020-11-28 03:01:44,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:45,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:45,047 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 03:01:45,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538779257] [2020-11-28 03:01:45,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:45,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:01:45,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421474843] [2020-11-28 03:01:45,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:01:45,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:45,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:01:45,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:01:45,049 INFO L87 Difference]: Start difference. First operand 122 states and 137 transitions. Second operand 9 states. [2020-11-28 03:01:45,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:45,606 INFO L93 Difference]: Finished difference Result 125 states and 141 transitions. [2020-11-28 03:01:45,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:01:45,607 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-11-28 03:01:45,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:45,607 INFO L225 Difference]: With dead ends: 125 [2020-11-28 03:01:45,608 INFO L226 Difference]: Without dead ends: 125 [2020-11-28 03:01:45,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:01:45,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-28 03:01:45,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2020-11-28 03:01:45,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-11-28 03:01:45,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 136 transitions. [2020-11-28 03:01:45,612 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 136 transitions. Word has length 20 [2020-11-28 03:01:45,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:45,613 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 136 transitions. [2020-11-28 03:01:45,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:01:45,613 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 136 transitions. [2020-11-28 03:01:45,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 03:01:45,614 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:45,614 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 03:01:45,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:01:45,614 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:45,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:45,615 INFO L82 PathProgramCache]: Analyzing trace with hash 863887250, now seen corresponding path program 1 times [2020-11-28 03:01:45,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:45,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689929040] [2020-11-28 03:01:45,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:45,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:45,744 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 03:01:45,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689929040] [2020-11-28 03:01:45,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:45,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:01:45,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858056539] [2020-11-28 03:01:45,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:01:45,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:45,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:01:45,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:01:45,746 INFO L87 Difference]: Start difference. First operand 121 states and 136 transitions. Second operand 9 states. [2020-11-28 03:01:46,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:46,283 INFO L93 Difference]: Finished difference Result 124 states and 140 transitions. [2020-11-28 03:01:46,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:01:46,283 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-11-28 03:01:46,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:46,284 INFO L225 Difference]: With dead ends: 124 [2020-11-28 03:01:46,284 INFO L226 Difference]: Without dead ends: 124 [2020-11-28 03:01:46,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:01:46,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-11-28 03:01:46,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 120. [2020-11-28 03:01:46,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-28 03:01:46,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 135 transitions. [2020-11-28 03:01:46,290 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 135 transitions. Word has length 20 [2020-11-28 03:01:46,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:46,290 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 135 transitions. [2020-11-28 03:01:46,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:01:46,291 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 135 transitions. [2020-11-28 03:01:46,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 03:01:46,291 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:46,292 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 03:01:46,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:01:46,292 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:46,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:46,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1159437965, now seen corresponding path program 1 times [2020-11-28 03:01:46,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:46,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590253420] [2020-11-28 03:01:46,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:46,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:46,450 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 03:01:46,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590253420] [2020-11-28 03:01:46,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:46,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-28 03:01:46,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088241006] [2020-11-28 03:01:46,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:01:46,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:46,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:01:46,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:01:46,451 INFO L87 Difference]: Start difference. First operand 120 states and 135 transitions. Second operand 11 states. [2020-11-28 03:01:47,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:47,160 INFO L93 Difference]: Finished difference Result 140 states and 152 transitions. [2020-11-28 03:01:47,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-28 03:01:47,161 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2020-11-28 03:01:47,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:47,161 INFO L225 Difference]: With dead ends: 140 [2020-11-28 03:01:47,162 INFO L226 Difference]: Without dead ends: 140 [2020-11-28 03:01:47,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-11-28 03:01:47,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-11-28 03:01:47,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 119. [2020-11-28 03:01:47,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-11-28 03:01:47,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2020-11-28 03:01:47,166 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 23 [2020-11-28 03:01:47,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:47,166 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2020-11-28 03:01:47,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:01:47,166 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2020-11-28 03:01:47,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:01:47,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:47,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:47,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:01:47,168 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:47,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:47,168 INFO L82 PathProgramCache]: Analyzing trace with hash -164424272, now seen corresponding path program 1 times [2020-11-28 03:01:47,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:47,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253005461] [2020-11-28 03:01:47,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:47,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:47,248 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 03:01:47,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253005461] [2020-11-28 03:01:47,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:47,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:01:47,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594145596] [2020-11-28 03:01:47,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:01:47,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:47,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:01:47,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:01:47,251 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand 5 states. [2020-11-28 03:01:47,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:47,501 INFO L93 Difference]: Finished difference Result 176 states and 188 transitions. [2020-11-28 03:01:47,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:01:47,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-28 03:01:47,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:47,502 INFO L225 Difference]: With dead ends: 176 [2020-11-28 03:01:47,502 INFO L226 Difference]: Without dead ends: 176 [2020-11-28 03:01:47,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:47,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-11-28 03:01:47,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 118. [2020-11-28 03:01:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-11-28 03:01:47,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 131 transitions. [2020-11-28 03:01:47,507 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 131 transitions. Word has length 25 [2020-11-28 03:01:47,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:47,507 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 131 transitions. [2020-11-28 03:01:47,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:01:47,507 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 131 transitions. [2020-11-28 03:01:47,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:01:47,508 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:47,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:47,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:01:47,509 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:47,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:47,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1467215118, now seen corresponding path program 1 times [2020-11-28 03:01:47,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:47,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250936716] [2020-11-28 03:01:47,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:47,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:47,586 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 03:01:47,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250936716] [2020-11-28 03:01:47,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:47,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:01:47,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813134997] [2020-11-28 03:01:47,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:01:47,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:47,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:01:47,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:47,588 INFO L87 Difference]: Start difference. First operand 118 states and 131 transitions. Second operand 6 states. [2020-11-28 03:01:47,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:47,799 INFO L93 Difference]: Finished difference Result 117 states and 128 transitions. [2020-11-28 03:01:47,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:01:47,800 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-11-28 03:01:47,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:47,801 INFO L225 Difference]: With dead ends: 117 [2020-11-28 03:01:47,801 INFO L226 Difference]: Without dead ends: 117 [2020-11-28 03:01:47,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:01:47,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-11-28 03:01:47,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-11-28 03:01:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-11-28 03:01:47,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 128 transitions. [2020-11-28 03:01:47,805 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 128 transitions. Word has length 30 [2020-11-28 03:01:47,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:47,805 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 128 transitions. [2020-11-28 03:01:47,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:01:47,805 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 128 transitions. [2020-11-28 03:01:47,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:01:47,806 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:47,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:47,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-28 03:01:47,806 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:47,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:47,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1435698162, now seen corresponding path program 1 times [2020-11-28 03:01:47,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:47,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458795840] [2020-11-28 03:01:47,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:48,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:48,215 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 03:01:48,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458795840] [2020-11-28 03:01:48,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:48,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-28 03:01:48,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271214010] [2020-11-28 03:01:48,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-28 03:01:48,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:48,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-28 03:01:48,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:01:48,217 INFO L87 Difference]: Start difference. First operand 117 states and 128 transitions. Second operand 13 states. [2020-11-28 03:01:48,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:48,826 INFO L93 Difference]: Finished difference Result 214 states and 225 transitions. [2020-11-28 03:01:48,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-28 03:01:48,827 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-11-28 03:01:48,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:48,828 INFO L225 Difference]: With dead ends: 214 [2020-11-28 03:01:48,828 INFO L226 Difference]: Without dead ends: 214 [2020-11-28 03:01:48,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2020-11-28 03:01:48,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-11-28 03:01:48,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 132. [2020-11-28 03:01:48,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-28 03:01:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 144 transitions. [2020-11-28 03:01:48,834 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 144 transitions. Word has length 30 [2020-11-28 03:01:48,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:48,834 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 144 transitions. [2020-11-28 03:01:48,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-28 03:01:48,835 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 144 transitions. [2020-11-28 03:01:48,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:01:48,836 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:48,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:48,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-28 03:01:48,836 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:48,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:48,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1761789926, now seen corresponding path program 1 times [2020-11-28 03:01:48,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:48,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604515423] [2020-11-28 03:01:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:49,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:49,035 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 03:01:49,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604515423] [2020-11-28 03:01:49,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:49,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:01:49,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381621637] [2020-11-28 03:01:49,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-28 03:01:49,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:49,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-28 03:01:49,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:01:49,037 INFO L87 Difference]: Start difference. First operand 132 states and 144 transitions. Second operand 13 states. [2020-11-28 03:01:49,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:49,765 INFO L93 Difference]: Finished difference Result 181 states and 192 transitions. [2020-11-28 03:01:49,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-28 03:01:49,766 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2020-11-28 03:01:49,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:49,767 INFO L225 Difference]: With dead ends: 181 [2020-11-28 03:01:49,767 INFO L226 Difference]: Without dead ends: 181 [2020-11-28 03:01:49,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-11-28 03:01:49,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-11-28 03:01:49,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 138. [2020-11-28 03:01:49,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-11-28 03:01:49,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 151 transitions. [2020-11-28 03:01:49,772 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 151 transitions. Word has length 31 [2020-11-28 03:01:49,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:49,772 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 151 transitions. [2020-11-28 03:01:49,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-28 03:01:49,773 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 151 transitions. [2020-11-28 03:01:49,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:01:49,773 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:49,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:49,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-28 03:01:49,774 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:49,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:49,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1761789927, now seen corresponding path program 1 times [2020-11-28 03:01:49,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:49,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9442235] [2020-11-28 03:01:49,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:50,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:01:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:50,023 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 03:01:50,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9442235] [2020-11-28 03:01:50,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:50,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:01:50,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446672631] [2020-11-28 03:01:50,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-28 03:01:50,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:50,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-28 03:01:50,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:01:50,025 INFO L87 Difference]: Start difference. First operand 138 states and 151 transitions. Second operand 13 states. [2020-11-28 03:01:50,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:50,782 INFO L93 Difference]: Finished difference Result 212 states and 223 transitions. [2020-11-28 03:01:50,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-28 03:01:50,784 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2020-11-28 03:01:50,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:50,786 INFO L225 Difference]: With dead ends: 212 [2020-11-28 03:01:50,786 INFO L226 Difference]: Without dead ends: 212 [2020-11-28 03:01:50,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2020-11-28 03:01:50,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-11-28 03:01:50,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 138. [2020-11-28 03:01:50,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-11-28 03:01:50,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 150 transitions. [2020-11-28 03:01:50,791 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 150 transitions. Word has length 31 [2020-11-28 03:01:50,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:50,792 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 150 transitions. [2020-11-28 03:01:50,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-28 03:01:50,792 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 150 transitions. [2020-11-28 03:01:50,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 03:01:50,792 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:50,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:50,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-28 03:01:50,793 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:01:50,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:50,794 INFO L82 PathProgramCache]: Analyzing trace with hash 423103229, now seen corresponding path program 1 times [2020-11-28 03:01:50,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:50,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506649099] [2020-11-28 03:01:50,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:50,816 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:50,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:50,870 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:01:50,870 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:01:50,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-28 03:01:50,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:01:50 BoogieIcfgContainer [2020-11-28 03:01:50,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:01:50,903 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:01:50,903 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:01:50,904 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:01:50,904 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:37" (3/4) ... [2020-11-28 03:01:50,906 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:01:50,958 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5723f63a-a8db-4c7b-b3db-b09f806a6fd1/bin/uautomizer/witness.graphml [2020-11-28 03:01:50,958 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:01:50,960 INFO L168 Benchmark]: Toolchain (without parser) took 14620.58 ms. Allocated memory was 83.9 MB in the beginning and 220.2 MB in the end (delta: 136.3 MB). Free memory was 55.1 MB in the beginning and 147.7 MB in the end (delta: -92.5 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:50,961 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 83.9 MB. Free memory was 40.4 MB in the beginning and 40.3 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:50,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.53 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 55.1 MB in the beginning and 70.9 MB in the end (delta: -15.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:50,962 INFO L168 Benchmark]: Boogie Preprocessor took 80.28 ms. Allocated memory is still 104.9 MB. Free memory was 70.9 MB in the beginning and 68.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:50,962 INFO L168 Benchmark]: RCFGBuilder took 1008.87 ms. Allocated memory is still 104.9 MB. Free memory was 68.0 MB in the beginning and 55.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:50,963 INFO L168 Benchmark]: TraceAbstraction took 12947.66 ms. Allocated memory was 104.9 MB in the beginning and 220.2 MB in the end (delta: 115.3 MB). Free memory was 55.2 MB in the beginning and 150.8 MB in the end (delta: -95.6 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:50,963 INFO L168 Benchmark]: Witness Printer took 55.26 ms. Allocated memory is still 220.2 MB. Free memory was 150.8 MB in the beginning and 147.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:50,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 83.9 MB. Free memory was 40.4 MB in the beginning and 40.3 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 521.53 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 55.1 MB in the beginning and 70.9 MB in the end (delta: -15.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.28 ms. Allocated memory is still 104.9 MB. Free memory was 70.9 MB in the beginning and 68.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1008.87 ms. Allocated memory is still 104.9 MB. Free memory was 68.0 MB in the beginning and 55.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12947.66 ms. Allocated memory was 104.9 MB in the beginning and 220.2 MB in the end (delta: 115.3 MB). Free memory was 55.2 MB in the beginning and 150.8 MB in the end (delta: -95.6 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. * Witness Printer took 55.26 ms. Allocated memory is still 220.2 MB. Free memory was 150.8 MB in the beginning and 147.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 992]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1004] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1005] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] head->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1007] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1009] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1012] COND FALSE !(__VERIFIER_nondet_int()) [L1021] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1022] x->next = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1023] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1023] x->next->prev = x VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1024] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1024] x->next->data = 2 VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1026] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1028] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1030] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1030] COND FALSE !(1 != x->data) [L1035] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1035] COND FALSE !(!(1 == x->data)) [L1036] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1036] x = x->next [L1037] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->data=2] [L1037] COND TRUE !(2 != x->data) [L1037] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "dll-token-2.c", 12, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 144 locations, 59 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.8s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1399 SDtfs, 2565 SDslu, 3167 SDs, 0 SdLazy, 7253 SolverSat, 486 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=4, 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, 18 MinimizatonAttempts, 590 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 387 NumberOfCodeBlocks, 387 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 334 ConstructedInterpolants, 0 QuantifiedInterpolants, 49858 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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...