./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ab87ef7cc863b18816ae397a50b6c6e9fb3e753d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:51:37,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:51:37,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:51:37,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:51:37,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:51:37,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:51:37,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:51:37,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:51:37,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:51:37,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:51:37,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:51:37,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:51:37,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:51:37,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:51:37,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:51:37,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:51:37,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:51:37,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:51:37,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:51:37,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:51:37,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:51:37,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:51:37,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:51:37,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:51:37,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:51:37,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:51:37,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:51:37,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:51:37,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:51:37,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:51:37,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:51:37,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:51:37,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:51:37,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:51:37,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:51:37,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:51:37,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:51:37,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:51:37,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:51:37,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:51:37,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:51:37,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-30 00:51:37,269 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:51:37,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:51:37,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:51:37,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:51:37,273 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:51:37,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:51:37,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:51:37,275 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:51:37,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:51:37,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:51:37,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:51:37,277 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 00:51:37,278 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 00:51:37,278 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 00:51:37,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:51:37,279 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 00:51:37,279 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:51:37,279 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:51:37,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:51:37,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:51:37,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:51:37,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:51:37,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:51:37,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:51:37,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:51:37,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:51:37,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:51:37,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:51:37,283 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_1d3025b6-7191-402b-84d6-ceafaabc8367/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab87ef7cc863b18816ae397a50b6c6e9fb3e753d [2020-11-30 00:51:37,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:51:37,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:51:37,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:51:37,794 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:51:37,795 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:51:37,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer/../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2020-11-30 00:51:37,907 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer/data/d3ca5bcdc/57eaf0b2d3cb4544b971c7c56471c94c/FLAG25f36295f [2020-11-30 00:51:38,758 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:51:38,767 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2020-11-30 00:51:38,800 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer/data/d3ca5bcdc/57eaf0b2d3cb4544b971c7c56471c94c/FLAG25f36295f [2020-11-30 00:51:38,951 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer/data/d3ca5bcdc/57eaf0b2d3cb4544b971c7c56471c94c [2020-11-30 00:51:38,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:51:38,959 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 00:51:38,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:51:38,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:51:38,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:51:38,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:51:38" (1/1) ... [2020-11-30 00:51:38,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383249ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:38, skipping insertion in model container [2020-11-30 00:51:38,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:51:38" (1/1) ... [2020-11-30 00:51:38,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:51:39,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:51:39,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:51:39,631 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:51:39,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:51:39,785 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:51:39,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:39 WrapperNode [2020-11-30 00:51:39,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:51:39,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:51:39,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:51:39,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:51:39,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:39" (1/1) ... [2020-11-30 00:51:39,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:39" (1/1) ... [2020-11-30 00:51:39,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:39" (1/1) ... [2020-11-30 00:51:39,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:39" (1/1) ... [2020-11-30 00:51:39,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:39" (1/1) ... [2020-11-30 00:51:39,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:39" (1/1) ... [2020-11-30 00:51:39,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:39" (1/1) ... [2020-11-30 00:51:39,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:51:39,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:51:39,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:51:39,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:51:39,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:51:39,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-30 00:51:39,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:51:39,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-30 00:51:39,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-30 00:51:39,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-30 00:51:39,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-30 00:51:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-30 00:51:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2020-11-30 00:51:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-30 00:51:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-30 00:51:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-30 00:51:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-30 00:51:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-30 00:51:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-30 00:51:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-30 00:51:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-30 00:51:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-30 00:51:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-30 00:51:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-30 00:51:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-30 00:51:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-30 00:51:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-30 00:51:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-30 00:51:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-30 00:51:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-30 00:51:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-30 00:51:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-30 00:51:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-30 00:51:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-30 00:51:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-30 00:51:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-30 00:51:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-30 00:51:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-30 00:51:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-30 00:51:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-30 00:51:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-30 00:51:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-30 00:51:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-30 00:51:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-30 00:51:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-30 00:51:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-30 00:51:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-30 00:51:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-30 00:51:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-30 00:51:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-30 00:51:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-30 00:51:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-30 00:51:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-30 00:51:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-30 00:51:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-30 00:51:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-30 00:51:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-30 00:51:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-30 00:51:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-30 00:51:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-30 00:51:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-30 00:51:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-30 00:51:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-30 00:51:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-30 00:51:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-30 00:51:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-30 00:51:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-30 00:51:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-30 00:51:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-30 00:51:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-30 00:51:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-30 00:51:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-30 00:51:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-30 00:51:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-30 00:51:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-30 00:51:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-30 00:51:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-30 00:51:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-30 00:51:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-30 00:51:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-30 00:51:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-30 00:51:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-30 00:51:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-30 00:51:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-30 00:51:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-30 00:51:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-30 00:51:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-30 00:51:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-30 00:51:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-30 00:51:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-30 00:51:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-30 00:51:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-30 00:51:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-30 00:51:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-30 00:51:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-30 00:51:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-30 00:51:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-30 00:51:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-30 00:51:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-30 00:51:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-30 00:51:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-30 00:51:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-30 00:51:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-30 00:51:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-30 00:51:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-30 00:51:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-30 00:51:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-30 00:51:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-30 00:51:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-30 00:51:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-30 00:51:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-30 00:51:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-30 00:51:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-30 00:51:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-30 00:51:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-30 00:51:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-30 00:51:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-30 00:51:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-30 00:51:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-30 00:51:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-30 00:51:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-30 00:51:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-30 00:51:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2020-11-30 00:51:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:51:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:51:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:51:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:51:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-30 00:51:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-30 00:51:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:51:40,929 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:51:40,930 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-30 00:51:40,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:51:40 BoogieIcfgContainer [2020-11-30 00:51:40,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:51:40,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:51:40,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:51:40,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:51:40,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:51:38" (1/3) ... [2020-11-30 00:51:40,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c920394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:51:40, skipping insertion in model container [2020-11-30 00:51:40,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:39" (2/3) ... [2020-11-30 00:51:40,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c920394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:51:40, skipping insertion in model container [2020-11-30 00:51:40,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:51:40" (3/3) ... [2020-11-30 00:51:40,953 INFO L111 eAbstractionObserver]: Analyzing ICFG c.03-alloca-2.i [2020-11-30 00:51:40,969 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:51:40,976 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2020-11-30 00:51:40,993 INFO L253 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2020-11-30 00:51:41,033 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:51:41,034 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 00:51:41,034 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:51:41,041 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:51:41,041 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:51:41,041 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:51:41,042 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:51:41,042 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:51:41,067 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2020-11-30 00:51:41,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:51:41,081 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:51:41,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:51:41,083 INFO L429 AbstractCegarLoop]: === Iteration 1 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-30 00:51:41,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:41,096 INFO L82 PathProgramCache]: Analyzing trace with hash 743499951, now seen corresponding path program 1 times [2020-11-30 00:51:41,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:51:41,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434504843] [2020-11-30 00:51:41,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:51:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:41,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:51:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:51:41,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434504843] [2020-11-30 00:51:41,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:51:41,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:51:41,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53187105] [2020-11-30 00:51:41,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:51:41,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:51:41,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:51:41,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:41,599 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 4 states. [2020-11-30 00:51:41,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:51:41,925 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2020-11-30 00:51:41,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:51:41,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-30 00:51:41,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:51:41,951 INFO L225 Difference]: With dead ends: 62 [2020-11-30 00:51:41,956 INFO L226 Difference]: Without dead ends: 59 [2020-11-30 00:51:41,958 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:42,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-30 00:51:42,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-11-30 00:51:42,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-30 00:51:42,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-11-30 00:51:42,049 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 9 [2020-11-30 00:51:42,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:51:42,050 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-11-30 00:51:42,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:51:42,051 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-11-30 00:51:42,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:51:42,053 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:51:42,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:51:42,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:51:42,054 INFO L429 AbstractCegarLoop]: === Iteration 2 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-30 00:51:42,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:42,057 INFO L82 PathProgramCache]: Analyzing trace with hash 743499952, now seen corresponding path program 1 times [2020-11-30 00:51:42,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:51:42,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470073992] [2020-11-30 00:51:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:51:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:42,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:51:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:42,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:51:42,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470073992] [2020-11-30 00:51:42,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:51:42,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:51:42,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937868342] [2020-11-30 00:51:42,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:51:42,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:51:42,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:51:42,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:42,268 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 4 states. [2020-11-30 00:51:42,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:51:42,485 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-11-30 00:51:42,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:51:42,486 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-30 00:51:42,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:51:42,488 INFO L225 Difference]: With dead ends: 54 [2020-11-30 00:51:42,488 INFO L226 Difference]: Without dead ends: 54 [2020-11-30 00:51:42,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:42,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-30 00:51:42,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-30 00:51:42,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-30 00:51:42,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-11-30 00:51:42,503 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 9 [2020-11-30 00:51:42,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:51:42,503 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-11-30 00:51:42,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:51:42,504 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-11-30 00:51:42,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:51:42,505 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:51:42,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:51:42,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:51:42,505 INFO L429 AbstractCegarLoop]: === Iteration 3 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-30 00:51:42,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:42,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1573661992, now seen corresponding path program 1 times [2020-11-30 00:51:42,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:51:42,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645522187] [2020-11-30 00:51:42,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:51:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:42,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:51:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:42,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:51:42,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645522187] [2020-11-30 00:51:42,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:51:42,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:51:42,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198018007] [2020-11-30 00:51:42,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:51:42,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:51:42,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:51:42,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:42,632 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 4 states. [2020-11-30 00:51:42,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:51:42,819 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-11-30 00:51:42,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:51:42,819 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-30 00:51:42,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:51:42,821 INFO L225 Difference]: With dead ends: 52 [2020-11-30 00:51:42,821 INFO L226 Difference]: Without dead ends: 52 [2020-11-30 00:51:42,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:42,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-30 00:51:42,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-30 00:51:42,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-30 00:51:42,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2020-11-30 00:51:42,833 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 10 [2020-11-30 00:51:42,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:51:42,834 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2020-11-30 00:51:42,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:51:42,835 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2020-11-30 00:51:42,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:51:42,835 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:51:42,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:51:42,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:51:42,840 INFO L429 AbstractCegarLoop]: === Iteration 4 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-30 00:51:42,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:42,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1573661993, now seen corresponding path program 1 times [2020-11-30 00:51:42,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:51:42,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270259160] [2020-11-30 00:51:42,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:51:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:42,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:51:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:51:42,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270259160] [2020-11-30 00:51:42,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:51:42,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:51:42,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489866159] [2020-11-30 00:51:42,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:51:42,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:51:42,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:51:42,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:42,997 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 4 states. [2020-11-30 00:51:43,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:51:43,166 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-11-30 00:51:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:51:43,166 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-30 00:51:43,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:51:43,168 INFO L225 Difference]: With dead ends: 50 [2020-11-30 00:51:43,168 INFO L226 Difference]: Without dead ends: 50 [2020-11-30 00:51:43,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:43,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-30 00:51:43,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-11-30 00:51:43,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-30 00:51:43,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-11-30 00:51:43,175 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 10 [2020-11-30 00:51:43,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:51:43,178 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-11-30 00:51:43,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:51:43,179 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-11-30 00:51:43,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:51:43,179 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:51:43,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:51:43,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:51:43,180 INFO L429 AbstractCegarLoop]: === Iteration 5 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-30 00:51:43,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:43,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1538881490, now seen corresponding path program 1 times [2020-11-30 00:51:43,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:51:43,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512479935] [2020-11-30 00:51:43,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:51:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:43,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:51:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:51:43,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512479935] [2020-11-30 00:51:43,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:51:43,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:51:43,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908351508] [2020-11-30 00:51:43,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:51:43,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:51:43,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:51:43,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:43,287 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 4 states. [2020-11-30 00:51:43,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:51:43,457 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-11-30 00:51:43,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:51:43,458 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 00:51:43,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:51:43,459 INFO L225 Difference]: With dead ends: 46 [2020-11-30 00:51:43,459 INFO L226 Difference]: Without dead ends: 46 [2020-11-30 00:51:43,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:43,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-30 00:51:43,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-11-30 00:51:43,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-30 00:51:43,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-11-30 00:51:43,475 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 11 [2020-11-30 00:51:43,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:51:43,476 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-11-30 00:51:43,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:51:43,476 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-11-30 00:51:43,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:51:43,478 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:51:43,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:51:43,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:51:43,479 INFO L429 AbstractCegarLoop]: === Iteration 6 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-30 00:51:43,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:43,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1538881491, now seen corresponding path program 1 times [2020-11-30 00:51:43,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:51:43,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926316728] [2020-11-30 00:51:43,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:51:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:43,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:51:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:43,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:51:43,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926316728] [2020-11-30 00:51:43,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:51:43,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:51:43,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524127907] [2020-11-30 00:51:43,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:51:43,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:51:43,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:51:43,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:43,614 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 4 states. [2020-11-30 00:51:43,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:51:43,778 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-11-30 00:51:43,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:51:43,780 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 00:51:43,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:51:43,781 INFO L225 Difference]: With dead ends: 42 [2020-11-30 00:51:43,781 INFO L226 Difference]: Without dead ends: 42 [2020-11-30 00:51:43,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:43,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-30 00:51:43,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-30 00:51:43,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-30 00:51:43,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-11-30 00:51:43,793 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 11 [2020-11-30 00:51:43,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:51:43,794 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-11-30 00:51:43,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:51:43,795 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-11-30 00:51:43,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:51:43,796 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:51:43,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:51:43,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:51:43,797 INFO L429 AbstractCegarLoop]: === Iteration 7 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-30 00:51:43,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:43,798 INFO L82 PathProgramCache]: Analyzing trace with hash 460685931, now seen corresponding path program 1 times [2020-11-30 00:51:43,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:51:43,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350825208] [2020-11-30 00:51:43,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:51:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:43,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:51:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:51:43,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350825208] [2020-11-30 00:51:43,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:51:43,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:51:43,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172730228] [2020-11-30 00:51:43,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:51:43,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:51:43,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:51:43,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:43,881 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 4 states. [2020-11-30 00:51:44,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:51:44,025 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-11-30 00:51:44,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:51:44,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-30 00:51:44,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:51:44,028 INFO L225 Difference]: With dead ends: 38 [2020-11-30 00:51:44,029 INFO L226 Difference]: Without dead ends: 38 [2020-11-30 00:51:44,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:44,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-30 00:51:44,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-30 00:51:44,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-30 00:51:44,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-11-30 00:51:44,045 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 12 [2020-11-30 00:51:44,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:51:44,046 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-11-30 00:51:44,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:51:44,046 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-11-30 00:51:44,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:51:44,047 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:51:44,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:51:44,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:51:44,048 INFO L429 AbstractCegarLoop]: === Iteration 8 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-30 00:51:44,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:44,049 INFO L82 PathProgramCache]: Analyzing trace with hash 460685932, now seen corresponding path program 1 times [2020-11-30 00:51:44,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:51:44,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058720660] [2020-11-30 00:51:44,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:51:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:44,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:51:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:44,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:51:44,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058720660] [2020-11-30 00:51:44,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:51:44,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:51:44,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644242227] [2020-11-30 00:51:44,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:51:44,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:51:44,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:51:44,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:44,144 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 4 states. [2020-11-30 00:51:44,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:51:44,275 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-11-30 00:51:44,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:51:44,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-30 00:51:44,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:51:44,277 INFO L225 Difference]: With dead ends: 34 [2020-11-30 00:51:44,277 INFO L226 Difference]: Without dead ends: 34 [2020-11-30 00:51:44,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:51:44,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-30 00:51:44,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-30 00:51:44,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-30 00:51:44,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-11-30 00:51:44,282 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 12 [2020-11-30 00:51:44,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:51:44,283 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-11-30 00:51:44,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:51:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-11-30 00:51:44,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 00:51:44,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:51:44,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:51:44,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:51:44,285 INFO L429 AbstractCegarLoop]: === Iteration 9 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-30 00:51:44,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:44,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1533919015, now seen corresponding path program 1 times [2020-11-30 00:51:44,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:51:44,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106150637] [2020-11-30 00:51:44,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:51:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:44,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:51:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:44,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-30 00:51:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:44,786 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-11-30 00:51:44,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:51:44,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106150637] [2020-11-30 00:51:44,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:51:44,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:51:44,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989701946] [2020-11-30 00:51:44,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:51:44,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:51:44,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:51:44,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:51:44,843 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 6 states. [2020-11-30 00:51:45,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:51:45,106 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-30 00:51:45,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:51:45,107 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-11-30 00:51:45,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:51:45,107 INFO L225 Difference]: With dead ends: 33 [2020-11-30 00:51:45,107 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:51:45,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:51:45,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:51:45,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:51:45,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:51:45,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:51:45,108 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-30 00:51:45,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:51:45,108 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:51:45,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:51:45,109 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:51:45,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:51:45,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 00:51:45,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:51:45 BoogieIcfgContainer [2020-11-30 00:51:45,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:51:45,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:51:45,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:51:45,114 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:51:45,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:51:40" (3/4) ... [2020-11-30 00:51:45,119 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:51:45,127 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-11-30 00:51:45,127 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2020-11-30 00:51:45,127 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test_fun [2020-11-30 00:51:45,128 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2020-11-30 00:51:45,128 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2020-11-30 00:51:45,128 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2020-11-30 00:51:45,128 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-11-30 00:51:45,128 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2020-11-30 00:51:45,135 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-30 00:51:45,135 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 00:51:45,136 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 00:51:45,136 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:51:45,200 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1d3025b6-7191-402b-84d6-ceafaabc8367/bin/uautomizer/witness.graphml [2020-11-30 00:51:45,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:51:45,203 INFO L168 Benchmark]: Toolchain (without parser) took 6243.23 ms. Allocated memory was 79.7 MB in the beginning and 144.7 MB in the end (delta: 65.0 MB). Free memory was 41.1 MB in the beginning and 100.1 MB in the end (delta: -59.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:51:45,203 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 79.7 MB. Free memory was 58.2 MB in the beginning and 58.1 MB in the end (delta: 52.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:51:45,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 824.63 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 40.9 MB in the beginning and 72.2 MB in the end (delta: -31.3 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:51:45,205 INFO L168 Benchmark]: Boogie Preprocessor took 73.23 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 70.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:51:45,206 INFO L168 Benchmark]: RCFGBuilder took 1073.10 ms. Allocated memory is still 107.0 MB. Free memory was 69.8 MB in the beginning and 75.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:51:45,206 INFO L168 Benchmark]: TraceAbstraction took 4176.02 ms. Allocated memory was 107.0 MB in the beginning and 144.7 MB in the end (delta: 37.7 MB). Free memory was 74.7 MB in the beginning and 104.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:51:45,207 INFO L168 Benchmark]: Witness Printer took 87.00 ms. Allocated memory is still 144.7 MB. Free memory was 104.3 MB in the beginning and 100.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:51:45,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 79.7 MB. Free memory was 58.2 MB in the beginning and 58.1 MB in the end (delta: 52.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 824.63 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 40.9 MB in the beginning and 72.2 MB in the end (delta: -31.3 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.23 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 70.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1073.10 ms. Allocated memory is still 107.0 MB. Free memory was 69.8 MB in the beginning and 75.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4176.02 ms. Allocated memory was 107.0 MB in the beginning and 144.7 MB in the end (delta: 37.7 MB). Free memory was 74.7 MB in the beginning and 104.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Witness Printer took 87.00 ms. Allocated memory is still 144.7 MB. Free memory was 104.3 MB in the beginning and 100.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 532]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 82 locations, 31 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 202 SDtfs, 301 SDslu, 95 SDs, 0 SdLazy, 660 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 15676 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...