./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/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 b03be66939377379d1133485be57e118e2bd7c88 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:15:00,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:15:00,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:15:00,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:15:00,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:15:00,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:15:00,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:15:00,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:15:00,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:15:00,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:15:00,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:15:00,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:15:00,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:15:00,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:15:00,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:15:00,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:15:00,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:15:00,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:15:00,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:15:00,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:15:00,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:15:00,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:15:00,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:15:00,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:15:00,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:15:00,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:15:00,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:15:00,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:15:00,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:15:00,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:15:00,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:15:00,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:15:00,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:15:00,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:15:00,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:15:00,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:15:00,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:15:00,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:15:00,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:15:00,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:15:00,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:15:00,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-15 21:15:00,138 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:15:00,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:15:00,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:15:00,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:15:00,152 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:15:00,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:15:00,153 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:15:00,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:15:00,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:15:00,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:15:00,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:15:00,155 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 21:15:00,155 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 21:15:00,155 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-15 21:15:00,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:15:00,156 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:15:00,156 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:15:00,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:15:00,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:15:00,157 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:15:00,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:15:00,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:15:00,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:15:00,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:15:00,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:15:00,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:15:00,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_02956b6f-3899-48c1-a49a-a0b194e747c5/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 -> b03be66939377379d1133485be57e118e2bd7c88 [2019-11-15 21:15:00,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:15:00,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:15:00,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:15:00,220 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:15:00,220 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:15:00,221 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i [2019-11-15 21:15:00,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/bin/uautomizer/data/71c9bcabc/e6a4e56b260d4a02badc48c94f3bc9bb/FLAG206054218 [2019-11-15 21:15:00,863 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:15:00,864 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/sv-benchmarks/c/list-ext-properties/test-0158_1-1.i [2019-11-15 21:15:00,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/bin/uautomizer/data/71c9bcabc/e6a4e56b260d4a02badc48c94f3bc9bb/FLAG206054218 [2019-11-15 21:15:01,236 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/bin/uautomizer/data/71c9bcabc/e6a4e56b260d4a02badc48c94f3bc9bb [2019-11-15 21:15:01,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:15:01,241 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 21:15:01,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:15:01,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:15:01,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:15:01,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:15:01" (1/1) ... [2019-11-15 21:15:01,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5446ce1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:15:01, skipping insertion in model container [2019-11-15 21:15:01,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:15:01" (1/1) ... [2019-11-15 21:15:01,258 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:15:01,296 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:15:01,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:15:01,668 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:15:01,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:15:01,777 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:15:01,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:15:01 WrapperNode [2019-11-15 21:15:01,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:15:01,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:15:01,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:15:01,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:15:01,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:15:01" (1/1) ... [2019-11-15 21:15:01,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:15:01" (1/1) ... [2019-11-15 21:15:01,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:15:01" (1/1) ... [2019-11-15 21:15:01,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:15:01" (1/1) ... [2019-11-15 21:15:01,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:15:01" (1/1) ... [2019-11-15 21:15:01,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:15:01" (1/1) ... [2019-11-15 21:15:01,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:15:01" (1/1) ... [2019-11-15 21:15:01,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:15:01,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:15:01,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:15:01,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:15:01,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:15:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/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 [2019-11-15 21:15:01,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 21:15:01,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:15:01,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-15 21:15:01,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-15 21:15:01,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-15 21:15:01,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-15 21:15:01,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-15 21:15:01,924 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 21:15:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-15 21:15:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 21:15:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 21:15:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 21:15:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 21:15:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 21:15:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 21:15:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 21:15:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 21:15:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 21:15:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 21:15:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 21:15:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 21:15:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 21:15:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 21:15:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 21:15:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 21:15:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-15 21:15:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-15 21:15:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-15 21:15:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-15 21:15:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-15 21:15:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 21:15:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 21:15:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 21:15:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 21:15:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 21:15:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 21:15:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 21:15:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 21:15:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 21:15:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 21:15:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 21:15:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 21:15:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 21:15:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 21:15:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 21:15:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 21:15:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 21:15:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 21:15:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 21:15:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 21:15:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 21:15:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 21:15:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 21:15:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 21:15:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 21:15:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 21:15:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 21:15:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 21:15:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 21:15:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 21:15:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 21:15:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 21:15:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 21:15:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 21:15:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 21:15:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 21:15:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 21:15:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 21:15:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 21:15:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 21:15:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 21:15:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 21:15:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 21:15:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 21:15:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 21:15:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 21:15:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 21:15:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 21:15:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 21:15:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 21:15:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 21:15:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 21:15:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 21:15:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 21:15:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 21:15:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 21:15:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 21:15:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 21:15:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 21:15:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 21:15:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 21:15:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 21:15:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 21:15:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 21:15:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 21:15:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 21:15:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 21:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 21:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 21:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 21:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 21:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 21:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 21:15:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 21:15:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 21:15:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 21:15:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 21:15:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 21:15:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 21:15:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 21:15:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 21:15:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 21:15:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 21:15:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 21:15:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 21:15:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 21:15:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-15 21:15:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 21:15:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:15:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 21:15:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-15 21:15:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:15:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 21:15:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-15 21:15:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:15:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 21:15:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:15:02,542 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:15:02,543 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-15 21:15:02,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:15:02 BoogieIcfgContainer [2019-11-15 21:15:02,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:15:02,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:15:02,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:15:02,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:15:02,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:15:01" (1/3) ... [2019-11-15 21:15:02,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233feb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:15:02, skipping insertion in model container [2019-11-15 21:15:02,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:15:01" (2/3) ... [2019-11-15 21:15:02,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233feb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:15:02, skipping insertion in model container [2019-11-15 21:15:02,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:15:02" (3/3) ... [2019-11-15 21:15:02,552 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0158_1-1.i [2019-11-15 21:15:02,579 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:15:02,598 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2019-11-15 21:15:02,614 INFO L249 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2019-11-15 21:15:02,652 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:15:02,653 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 21:15:02,653 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:15:02,653 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:15:02,653 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:15:02,653 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:15:02,653 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:15:02,654 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:15:02,709 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-11-15 21:15:02,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 21:15:02,720 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:15:02,721 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:15:02,740 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0REQUIRES_VIOLATION, mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2019-11-15 21:15:02,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:15:02,747 INFO L82 PathProgramCache]: Analyzing trace with hash -804131878, now seen corresponding path program 1 times [2019-11-15 21:15:02,772 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:15:02,773 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145298662] [2019-11-15 21:15:02,773 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:15:02,773 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:15:02,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:15:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:15:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:15:03,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:15:03,082 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145298662] [2019-11-15 21:15:03,083 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:15:03,084 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 21:15:03,085 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643789909] [2019-11-15 21:15:03,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:15:03,091 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:15:03,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:15:03,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:15:03,110 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2019-11-15 21:15:03,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:15:03,321 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2019-11-15 21:15:03,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:15:03,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-15 21:15:03,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:15:03,339 INFO L225 Difference]: With dead ends: 32 [2019-11-15 21:15:03,340 INFO L226 Difference]: Without dead ends: 29 [2019-11-15 21:15:03,344 INFO L600 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 [2019-11-15 21:15:03,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-15 21:15:03,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-15 21:15:03,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-15 21:15:03,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-15 21:15:03,398 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 7 [2019-11-15 21:15:03,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:15:03,399 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-15 21:15:03,399 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:15:03,399 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-15 21:15:03,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 21:15:03,400 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:15:03,400 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:15:03,401 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0REQUIRES_VIOLATION, mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2019-11-15 21:15:03,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:15:03,401 INFO L82 PathProgramCache]: Analyzing trace with hash -804131877, now seen corresponding path program 1 times [2019-11-15 21:15:03,402 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:15:03,402 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603470745] [2019-11-15 21:15:03,402 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:15:03,402 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:15:03,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:15:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:15:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:15:03,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:15:03,520 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603470745] [2019-11-15 21:15:03,520 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:15:03,520 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 21:15:03,521 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803808971] [2019-11-15 21:15:03,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:15:03,523 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:15:03,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:15:03,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:15:03,523 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 4 states. [2019-11-15 21:15:03,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:15:03,612 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-11-15 21:15:03,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:15:03,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-15 21:15:03,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:15:03,614 INFO L225 Difference]: With dead ends: 23 [2019-11-15 21:15:03,614 INFO L226 Difference]: Without dead ends: 23 [2019-11-15 21:15:03,615 INFO L600 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 [2019-11-15 21:15:03,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-15 21:15:03,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-15 21:15:03,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-15 21:15:03,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-11-15 21:15:03,619 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 7 [2019-11-15 21:15:03,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:15:03,619 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-11-15 21:15:03,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:15:03,620 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-11-15 21:15:03,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 21:15:03,620 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:15:03,620 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:15:03,621 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0REQUIRES_VIOLATION, mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2019-11-15 21:15:03,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:15:03,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1963047839, now seen corresponding path program 1 times [2019-11-15 21:15:03,622 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:15:03,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690557799] [2019-11-15 21:15:03,622 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:15:03,622 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:15:03,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:15:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:15:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:15:03,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:15:03,788 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690557799] [2019-11-15 21:15:03,788 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:15:03,789 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 21:15:03,789 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249331721] [2019-11-15 21:15:03,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:15:03,789 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:15:03,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:15:03,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:15:03,790 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 6 states. [2019-11-15 21:15:03,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:15:03,935 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2019-11-15 21:15:03,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:15:03,936 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-15 21:15:03,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:15:03,937 INFO L225 Difference]: With dead ends: 22 [2019-11-15 21:15:03,937 INFO L226 Difference]: Without dead ends: 22 [2019-11-15 21:15:03,938 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:15:03,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-15 21:15:03,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-15 21:15:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-15 21:15:03,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-11-15 21:15:03,941 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 14 [2019-11-15 21:15:03,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:15:03,942 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-11-15 21:15:03,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:15:03,942 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-11-15 21:15:03,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 21:15:03,943 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:15:03,943 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:15:03,943 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0REQUIRES_VIOLATION, mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2019-11-15 21:15:03,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:15:03,944 INFO L82 PathProgramCache]: Analyzing trace with hash -724940792, now seen corresponding path program 1 times [2019-11-15 21:15:03,944 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:15:03,944 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273372681] [2019-11-15 21:15:03,944 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:15:03,945 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:15:03,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:15:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:15:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:15:04,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:15:04,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273372681] [2019-11-15 21:15:04,045 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:15:04,046 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 21:15:04,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729824209] [2019-11-15 21:15:04,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:15:04,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:15:04,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:15:04,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:15:04,048 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 6 states. [2019-11-15 21:15:04,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:15:04,170 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-15 21:15:04,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:15:04,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-15 21:15:04,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:15:04,172 INFO L225 Difference]: With dead ends: 21 [2019-11-15 21:15:04,172 INFO L226 Difference]: Without dead ends: 21 [2019-11-15 21:15:04,173 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:15:04,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-15 21:15:04,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-15 21:15:04,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-15 21:15:04,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-15 21:15:04,176 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 15 [2019-11-15 21:15:04,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:15:04,177 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-15 21:15:04,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:15:04,177 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-15 21:15:04,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 21:15:04,178 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:15:04,178 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:15:04,178 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0REQUIRES_VIOLATION, mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2019-11-15 21:15:04,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:15:04,179 INFO L82 PathProgramCache]: Analyzing trace with hash -998327997, now seen corresponding path program 1 times [2019-11-15 21:15:04,179 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:15:04,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255462510] [2019-11-15 21:15:04,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:15:04,180 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:15:04,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:15:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:15:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:15:04,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:15:04,316 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255462510] [2019-11-15 21:15:04,317 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:15:04,317 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 21:15:04,317 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514255382] [2019-11-15 21:15:04,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:15:04,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:15:04,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:15:04,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:15:04,318 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2019-11-15 21:15:04,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:15:04,447 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-11-15 21:15:04,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:15:04,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-15 21:15:04,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:15:04,448 INFO L225 Difference]: With dead ends: 20 [2019-11-15 21:15:04,448 INFO L226 Difference]: Without dead ends: 20 [2019-11-15 21:15:04,452 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:15:04,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-15 21:15:04,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-15 21:15:04,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 21:15:04,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-11-15 21:15:04,455 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 16 [2019-11-15 21:15:04,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:15:04,456 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-11-15 21:15:04,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:15:04,456 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-11-15 21:15:04,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 21:15:04,457 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:15:04,457 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:15:04,458 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0REQUIRES_VIOLATION, mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2019-11-15 21:15:04,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:15:04,458 INFO L82 PathProgramCache]: Analyzing trace with hash -883396757, now seen corresponding path program 1 times [2019-11-15 21:15:04,458 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:15:04,459 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78758778] [2019-11-15 21:15:04,459 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:15:04,459 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:15:04,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:15:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:15:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:15:04,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:15:04,843 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78758778] [2019-11-15 21:15:04,843 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:15:04,844 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 21:15:04,844 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584214976] [2019-11-15 21:15:04,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:15:04,845 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:15:04,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:15:04,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:15:04,846 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2019-11-15 21:15:05,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:15:05,152 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-11-15 21:15:05,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:15:05,153 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-11-15 21:15:05,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:15:05,153 INFO L225 Difference]: With dead ends: 19 [2019-11-15 21:15:05,154 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:15:05,154 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:15:05,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:15:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:15:05,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:15:05,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:15:05,155 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-15 21:15:05,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:15:05,156 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:15:05,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:15:05,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:15:05,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:15:05,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:15:05 BoogieIcfgContainer [2019-11-15 21:15:05,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:15:05,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:15:05,164 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:15:05,164 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:15:05,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:15:02" (3/4) ... [2019-11-15 21:15:05,169 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:15:05,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-15 21:15:05,177 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-11-15 21:15:05,177 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-11-15 21:15:05,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-11-15 21:15:05,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-11-15 21:15:05,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-15 21:15:05,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-11-15 21:15:05,184 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-15 21:15:05,184 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-15 21:15:05,184 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 21:15:05,270 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_02956b6f-3899-48c1-a49a-a0b194e747c5/bin/uautomizer/witness.graphml [2019-11-15 21:15:05,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:15:05,282 INFO L168 Benchmark]: Toolchain (without parser) took 4041.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 946.1 MB in the beginning and 896.1 MB in the end (delta: 49.9 MB). Peak memory consumption was 169.5 MB. Max. memory is 11.5 GB. [2019-11-15 21:15:05,283 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:15:05,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -156.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:15:05,284 INFO L168 Benchmark]: Boogie Preprocessor took 60.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:15:05,285 INFO L168 Benchmark]: RCFGBuilder took 704.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:15:05,285 INFO L168 Benchmark]: TraceAbstraction took 2617.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 896.1 MB in the end (delta: 156.7 MB). Peak memory consumption was 156.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:15:05,285 INFO L168 Benchmark]: Witness Printer took 116.38 ms. Allocated memory is still 1.1 GB. Free memory is still 896.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:15:05,288 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 536.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -156.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 704.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2617.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 896.1 MB in the end (delta: 156.7 MB). Peak memory consumption was 156.7 MB. Max. memory is 11.5 GB. * Witness Printer took 116.38 ms. Allocated memory is still 1.1 GB. Free memory is still 896.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 513]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 532]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 532]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 532]: free always succeeds For all program executions holds that free 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: 532]: 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: 532]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 529]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 527]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 529]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 527]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 525]: 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: 525]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 53 locations, 16 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 113 SDslu, 105 SDs, 0 SdLazy, 268 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 7732 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...