./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 6b5699aa Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/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: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-25 08:53:18,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:18,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:18,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:18,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:18,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:18,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:19,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:19,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:19,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:19,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:19,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:19,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:19,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:19,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:19,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:19,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:19,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:19,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:19,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:19,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:19,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:19,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:19,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:19,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:19,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:19,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:19,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:19,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:19,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:19,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:19,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:19,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:19,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:19,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:19,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:19,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:19,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:19,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:19,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:19,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:19,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-25 08:53:19,065 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:19,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:19,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:19,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:19,067 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:19,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:19,067 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:19,067 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:53:19,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:53:19,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:19,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:19,068 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-25 08:53:19,068 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-25 08:53:19,068 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-25 08:53:19,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:53:19,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:53:19,069 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:53:19,069 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:53:19,069 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:19,069 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:19,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:19,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:19,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:53:19,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:53:19,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:19,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:19,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:53:19,071 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:53:19,071 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:53:19,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:53:19,071 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_5082178f-9af5-4fef-a9e0-f1cccd9ee091/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 [2019-11-25 08:53:19,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:19,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:19,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:19,262 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:19,262 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:19,263 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2019-11-25 08:53:19,314 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/data/646e794cb/20dd099e8f404fe2b0045878494be0ed/FLAGcac3e7b2c [2019-11-25 08:53:19,785 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:19,786 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2019-11-25 08:53:19,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/data/646e794cb/20dd099e8f404fe2b0045878494be0ed/FLAGcac3e7b2c [2019-11-25 08:53:20,282 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/data/646e794cb/20dd099e8f404fe2b0045878494be0ed [2019-11-25 08:53:20,284 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:20,286 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-25 08:53:20,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:20,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:20,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:20,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:20" (1/1) ... [2019-11-25 08:53:20,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1968b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:20, skipping insertion in model container [2019-11-25 08:53:20,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:20" (1/1) ... [2019-11-25 08:53:20,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:20,340 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:20,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:20,693 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:20,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:20,777 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:20,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:20 WrapperNode [2019-11-25 08:53:20,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:20,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:20,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:20,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:20,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:20" (1/1) ... [2019-11-25 08:53:20,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:20" (1/1) ... [2019-11-25 08:53:20,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:20" (1/1) ... [2019-11-25 08:53:20,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:20" (1/1) ... [2019-11-25 08:53:20,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:20" (1/1) ... [2019-11-25 08:53:20,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:20" (1/1) ... [2019-11-25 08:53:20,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:20" (1/1) ... [2019-11-25 08:53:20,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:20,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:20,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:20,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:20,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/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 [2019-11-25 08:53:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-25 08:53:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:53:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-25 08:53:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-25 08:53:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-25 08:53:20,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-25 08:53:20,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-25 08:53:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2019-11-25 08:53:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-25 08:53:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-25 08:53:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-25 08:53:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-25 08:53:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-25 08:53:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-25 08:53:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-25 08:53:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-25 08:53:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-25 08:53:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-25 08:53:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-25 08:53:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-25 08:53:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-25 08:53:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-25 08:53:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-25 08:53:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-25 08:53:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-25 08:53:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-25 08:53:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-25 08:53:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-25 08:53:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-25 08:53:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-25 08:53:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-25 08:53:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-25 08:53:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-25 08:53:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-25 08:53:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-25 08:53:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-25 08:53:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-25 08:53:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-25 08:53:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-25 08:53:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-25 08:53:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-25 08:53:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-25 08:53:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-25 08:53:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-25 08:53:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-25 08:53:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-25 08:53:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-25 08:53:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-25 08:53:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-25 08:53:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-25 08:53:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-25 08:53:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-25 08:53:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-25 08:53:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-25 08:53:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-25 08:53:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-25 08:53:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-25 08:53:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-25 08:53:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-25 08:53:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-25 08:53:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-25 08:53:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-25 08:53:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-25 08:53:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-25 08:53:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-25 08:53:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-25 08:53:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-25 08:53:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-25 08:53:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-25 08:53:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-25 08:53:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-25 08:53:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-25 08:53:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-25 08:53:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-25 08:53:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-25 08:53:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-25 08:53:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-25 08:53:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-25 08:53:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-25 08:53:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-25 08:53:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-25 08:53:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-25 08:53:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-25 08:53:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-25 08:53:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-25 08:53:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-25 08:53:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-25 08:53:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-25 08:53:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-25 08:53:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-25 08:53:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-25 08:53:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-25 08:53:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-25 08:53:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-25 08:53:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-25 08:53:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-25 08:53:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-25 08:53:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-25 08:53:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-25 08:53:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-25 08:53:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-25 08:53:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-25 08:53:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-25 08:53:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-25 08:53:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-25 08:53:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-25 08:53:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-25 08:53:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-25 08:53:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-25 08:53:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-25 08:53:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-25 08:53:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-25 08:53:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-25 08:53:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-25 08:53:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-25 08:53:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-25 08:53:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-25 08:53:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2019-11-25 08:53:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:53:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:53:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:53:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:53:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-25 08:53:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-25 08:53:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:53:21,605 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:21,605 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-25 08:53:21,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:21 BoogieIcfgContainer [2019-11-25 08:53:21,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:21,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:53:21,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:53:21,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:53:21,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:53:20" (1/3) ... [2019-11-25 08:53:21,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf8a877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:21, skipping insertion in model container [2019-11-25 08:53:21,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:20" (2/3) ... [2019-11-25 08:53:21,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf8a877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:21, skipping insertion in model container [2019-11-25 08:53:21,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:21" (3/3) ... [2019-11-25 08:53:21,613 INFO L109 eAbstractionObserver]: Analyzing ICFG c.03-alloca-2.i [2019-11-25 08:53:21,625 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:53:21,632 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2019-11-25 08:53:21,651 INFO L249 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2019-11-25 08:53:21,671 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:53:21,671 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-25 08:53:21,671 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:53:21,671 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:21,671 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:21,672 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:53:21,672 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:21,672 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:53:21,690 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2019-11-25 08:53:21,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-25 08:53:21,704 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:21,704 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:21,705 INFO L410 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]=== [2019-11-25 08:53:21,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:21,712 INFO L82 PathProgramCache]: Analyzing trace with hash 132180383, now seen corresponding path program 1 times [2019-11-25 08:53:21,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:21,724 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1008298583] [2019-11-25 08:53:21,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:21,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:53:21,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:22,141 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 18 [2019-11-25 08:53:22,142 INFO L343 Elim1Store]: treesize reduction 93, result has 20.5 percent of original size [2019-11-25 08:53:22,143 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 47 [2019-11-25 08:53:22,144 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:22,172 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:22,176 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-25 08:53:22,176 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:35, output treesize:33 [2019-11-25 08:53:22,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:22,221 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:22,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:22,242 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1008298583] [2019-11-25 08:53:22,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:22,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-25 08:53:22,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468448950] [2019-11-25 08:53:22,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:53:22,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:22,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:53:22,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:22,264 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 4 states. [2019-11-25 08:53:22,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:22,501 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2019-11-25 08:53:22,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:53:22,503 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-25 08:53:22,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:22,512 INFO L225 Difference]: With dead ends: 61 [2019-11-25 08:53:22,512 INFO L226 Difference]: Without dead ends: 58 [2019-11-25 08:53:22,513 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:22,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-25 08:53:22,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-11-25 08:53:22,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-11-25 08:53:22,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2019-11-25 08:53:22,548 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 8 [2019-11-25 08:53:22,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:22,549 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2019-11-25 08:53:22,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:53:22,549 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2019-11-25 08:53:22,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-25 08:53:22,550 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:22,550 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:22,752 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:22,753 INFO L410 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]=== [2019-11-25 08:53:22,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:22,753 INFO L82 PathProgramCache]: Analyzing trace with hash 132180384, now seen corresponding path program 1 times [2019-11-25 08:53:22,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:22,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [127158207] [2019-11-25 08:53:22,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:22,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-25 08:53:22,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:22,984 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_41|], 4=[|v_#valid_56|]} [2019-11-25 08:53:22,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:53:22,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:53:22,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:53:23,065 INFO L343 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2019-11-25 08:53:23,065 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 21 [2019-11-25 08:53:23,066 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:23,093 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:23,118 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:23,119 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-11-25 08:53:23,120 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:23,150 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:23,152 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-25 08:53:23,152 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:38, output treesize:36 [2019-11-25 08:53:23,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:23,194 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:23,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:23,242 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [127158207] [2019-11-25 08:53:23,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:23,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-25 08:53:23,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113283694] [2019-11-25 08:53:23,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:53:23,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:23,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:53:23,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:23,247 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 4 states. [2019-11-25 08:53:23,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:23,427 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2019-11-25 08:53:23,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:53:23,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-25 08:53:23,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:23,429 INFO L225 Difference]: With dead ends: 53 [2019-11-25 08:53:23,429 INFO L226 Difference]: Without dead ends: 53 [2019-11-25 08:53:23,430 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:23,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-25 08:53:23,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-11-25 08:53:23,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-25 08:53:23,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2019-11-25 08:53:23,436 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 8 [2019-11-25 08:53:23,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:23,437 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2019-11-25 08:53:23,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:53:23,437 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2019-11-25 08:53:23,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-25 08:53:23,437 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:23,437 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:23,641 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:23,641 INFO L410 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]=== [2019-11-25 08:53:23,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:23,642 INFO L82 PathProgramCache]: Analyzing trace with hash -197375411, now seen corresponding path program 1 times [2019-11-25 08:53:23,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:23,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1396500854] [2019-11-25 08:53:23,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:23,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:53:23,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:23,956 INFO L343 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2019-11-25 08:53:23,957 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 32 [2019-11-25 08:53:23,958 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:23,986 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:23,988 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-25 08:53:23,988 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:27, output treesize:29 [2019-11-25 08:53:24,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:24,035 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:24,072 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1396500854] [2019-11-25 08:53:24,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:24,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2019-11-25 08:53:24,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105288833] [2019-11-25 08:53:24,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:53:24,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:24,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:53:24,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:53:24,073 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 5 states. [2019-11-25 08:53:24,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:24,201 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2019-11-25 08:53:24,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:53:24,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-25 08:53:24,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:24,203 INFO L225 Difference]: With dead ends: 51 [2019-11-25 08:53:24,203 INFO L226 Difference]: Without dead ends: 51 [2019-11-25 08:53:24,204 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:53:24,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-25 08:53:24,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-11-25 08:53:24,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-25 08:53:24,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2019-11-25 08:53:24,209 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 9 [2019-11-25 08:53:24,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:24,209 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2019-11-25 08:53:24,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:53:24,209 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2019-11-25 08:53:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-25 08:53:24,210 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:24,210 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:24,410 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:24,410 INFO L410 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]=== [2019-11-25 08:53:24,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:24,411 INFO L82 PathProgramCache]: Analyzing trace with hash -197375410, now seen corresponding path program 1 times [2019-11-25 08:53:24,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:24,411 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1947162226] [2019-11-25 08:53:24,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:24,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:53:24,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:24,637 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_44|], 2=[|v_#valid_66|]} [2019-11-25 08:53:24,649 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:53:24,651 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:53:24,709 INFO L343 Elim1Store]: treesize reduction 58, result has 21.6 percent of original size [2019-11-25 08:53:24,709 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 21 [2019-11-25 08:53:24,709 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:24,735 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:24,745 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2019-11-25 08:53:24,745 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:24,772 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:24,773 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-25 08:53:24,774 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:30, output treesize:32 [2019-11-25 08:53:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:24,827 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:24,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:24,875 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1947162226] [2019-11-25 08:53:24,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:24,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-25 08:53:24,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582080267] [2019-11-25 08:53:24,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:53:24,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:24,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:53:24,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:24,877 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 4 states. [2019-11-25 08:53:24,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:24,999 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2019-11-25 08:53:25,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:53:25,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-25 08:53:25,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:25,002 INFO L225 Difference]: With dead ends: 49 [2019-11-25 08:53:25,002 INFO L226 Difference]: Without dead ends: 49 [2019-11-25 08:53:25,002 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:25,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-25 08:53:25,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-11-25 08:53:25,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-11-25 08:53:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2019-11-25 08:53:25,013 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 9 [2019-11-25 08:53:25,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:25,013 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2019-11-25 08:53:25,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:53:25,014 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2019-11-25 08:53:25,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:53:25,014 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:25,015 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:25,215 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:25,215 INFO L410 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]=== [2019-11-25 08:53:25,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:25,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1823670430, now seen corresponding path program 1 times [2019-11-25 08:53:25,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:25,216 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1942815856] [2019-11-25 08:53:25,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:25,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:53:25,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:25,492 INFO L343 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2019-11-25 08:53:25,493 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 36 [2019-11-25 08:53:25,493 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:25,516 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:25,517 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-25 08:53:25,518 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:30, output treesize:33 [2019-11-25 08:53:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:25,563 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:25,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:25,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1942815856] [2019-11-25 08:53:25,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:25,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2019-11-25 08:53:25,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905367840] [2019-11-25 08:53:25,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:53:25,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:25,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:53:25,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:53:25,606 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 5 states. [2019-11-25 08:53:25,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:25,718 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2019-11-25 08:53:25,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:53:25,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-25 08:53:25,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:25,720 INFO L225 Difference]: With dead ends: 45 [2019-11-25 08:53:25,720 INFO L226 Difference]: Without dead ends: 45 [2019-11-25 08:53:25,721 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:53:25,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-25 08:53:25,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-11-25 08:53:25,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-25 08:53:25,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2019-11-25 08:53:25,725 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 10 [2019-11-25 08:53:25,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:25,726 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2019-11-25 08:53:25,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:53:25,726 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2019-11-25 08:53:25,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:53:25,726 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:25,726 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:25,927 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:25,927 INFO L410 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]=== [2019-11-25 08:53:25,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:25,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1823670429, now seen corresponding path program 1 times [2019-11-25 08:53:25,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:25,928 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1919369605] [2019-11-25 08:53:25,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:26,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:53:26,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:26,161 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_47|], 3=[|v_#valid_76|]} [2019-11-25 08:53:26,173 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:53:26,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:53:26,178 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:53:26,217 INFO L343 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2019-11-25 08:53:26,217 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 21 [2019-11-25 08:53:26,218 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:26,245 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:26,257 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2019-11-25 08:53:26,257 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:26,283 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:26,284 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-25 08:53:26,284 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:33, output treesize:36 [2019-11-25 08:53:26,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:26,307 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:26,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:26,341 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1919369605] [2019-11-25 08:53:26,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:26,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-25 08:53:26,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056617321] [2019-11-25 08:53:26,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:53:26,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:26,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:53:26,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:26,343 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 4 states. [2019-11-25 08:53:26,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:26,431 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2019-11-25 08:53:26,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:53:26,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-25 08:53:26,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:26,433 INFO L225 Difference]: With dead ends: 41 [2019-11-25 08:53:26,433 INFO L226 Difference]: Without dead ends: 41 [2019-11-25 08:53:26,434 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:26,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-25 08:53:26,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-25 08:53:26,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-25 08:53:26,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2019-11-25 08:53:26,438 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 10 [2019-11-25 08:53:26,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:26,438 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2019-11-25 08:53:26,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:53:26,438 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2019-11-25 08:53:26,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:53:26,438 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:26,438 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:26,639 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:26,639 INFO L410 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]=== [2019-11-25 08:53:26,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:26,639 INFO L82 PathProgramCache]: Analyzing trace with hash -699208464, now seen corresponding path program 1 times [2019-11-25 08:53:26,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:26,640 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [193253153] [2019-11-25 08:53:26,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:26,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:53:26,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:26,877 INFO L343 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2019-11-25 08:53:26,877 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 21 [2019-11-25 08:53:26,878 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:26,889 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:26,890 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-25 08:53:26,890 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:15, output treesize:21 [2019-11-25 08:53:26,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:26,912 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:26,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:26,938 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [193253153] [2019-11-25 08:53:26,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:26,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2019-11-25 08:53:26,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465376228] [2019-11-25 08:53:26,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:53:26,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:26,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:53:26,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:26,940 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 4 states. [2019-11-25 08:53:27,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:27,035 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2019-11-25 08:53:27,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:53:27,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-25 08:53:27,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:27,037 INFO L225 Difference]: With dead ends: 37 [2019-11-25 08:53:27,037 INFO L226 Difference]: Without dead ends: 37 [2019-11-25 08:53:27,037 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:27,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-25 08:53:27,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-25 08:53:27,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-25 08:53:27,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2019-11-25 08:53:27,041 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 11 [2019-11-25 08:53:27,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:27,041 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2019-11-25 08:53:27,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:53:27,041 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2019-11-25 08:53:27,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:53:27,041 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:27,042 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:27,242 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:27,242 INFO L410 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]=== [2019-11-25 08:53:27,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:27,243 INFO L82 PathProgramCache]: Analyzing trace with hash -699208463, now seen corresponding path program 1 times [2019-11-25 08:53:27,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:27,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [383883351] [2019-11-25 08:53:27,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:27,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:53:27,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:27,442 INFO L343 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2019-11-25 08:53:27,443 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 21 [2019-11-25 08:53:27,443 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:27,454 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:27,455 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-25 08:53:27,455 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:19, output treesize:24 [2019-11-25 08:53:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:27,478 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:27,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:27,513 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [383883351] [2019-11-25 08:53:27,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:27,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-25 08:53:27,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35398319] [2019-11-25 08:53:27,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:53:27,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:27,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:53:27,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:27,514 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 4 states. [2019-11-25 08:53:27,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:27,573 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-11-25 08:53:27,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:53:27,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-25 08:53:27,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:27,574 INFO L225 Difference]: With dead ends: 33 [2019-11-25 08:53:27,574 INFO L226 Difference]: Without dead ends: 33 [2019-11-25 08:53:27,575 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:27,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-25 08:53:27,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-25 08:53:27,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-25 08:53:27,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2019-11-25 08:53:27,577 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 11 [2019-11-25 08:53:27,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:27,578 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2019-11-25 08:53:27,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:53:27,578 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2019-11-25 08:53:27,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-25 08:53:27,579 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:27,579 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:27,781 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:27,782 INFO L410 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]=== [2019-11-25 08:53:27,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:27,782 INFO L82 PathProgramCache]: Analyzing trace with hash 120557527, now seen corresponding path program 1 times [2019-11-25 08:53:27,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:27,782 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1260321111] [2019-11-25 08:53:27,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5082178f-9af5-4fef-a9e0-f1cccd9ee091/bin/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:28,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-25 08:53:28,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:28,015 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-25 08:53:28,015 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:53:28,022 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:53:28,022 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:53:28,023 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-25 08:53:34,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:34,230 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:34,702 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:53:34,703 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-25 08:53:34,707 INFO L168 Benchmark]: Toolchain (without parser) took 14421.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.6 MB). Free memory was 946.1 MB in the beginning and 897.3 MB in the end (delta: 48.8 MB). Peak memory consumption was 244.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:34,707 INFO L168 Benchmark]: CDTParser took 0.19 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. [2019-11-25 08:53:34,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:34,708 INFO L168 Benchmark]: Boogie Preprocessor took 61.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:34,708 INFO L168 Benchmark]: RCFGBuilder took 766.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:34,709 INFO L168 Benchmark]: TraceAbstraction took 13098.39 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 897.3 MB in the end (delta: 137.9 MB). Peak memory consumption was 217.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:34,712 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 491.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 766.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13098.39 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 897.3 MB in the end (delta: 137.9 MB). Peak memory consumption was 217.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...