./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 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_fd25e92e-e5f8-4001-a166-588b6ff09292/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/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 eb5e103dbe59a250cbe01613b667895523582d5d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: incompatible size --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 09:47:23,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:47:23,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:47:23,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:47:23,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:47:23,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:47:23,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:47:23,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:47:23,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:47:23,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:47:23,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:47:23,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:47:23,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:47:23,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:47:23,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:47:23,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:47:23,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:47:23,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:47:23,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:47:23,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:47:23,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:47:23,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:47:23,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:47:23,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:47:23,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:47:23,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:47:23,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:47:23,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:47:23,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:47:23,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:47:23,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:47:23,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:47:23,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:47:23,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:47:23,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:47:23,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:47:23,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:47:23,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:47:23,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:47:23,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:47:23,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:47:23,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 09:47:23,337 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:47:23,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:47:23,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:47:23,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:47:23,339 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:47:23,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:47:23,339 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:47:23,339 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 09:47:23,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:47:23,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:47:23,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:47:23,340 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 09:47:23,340 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 09:47:23,340 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 09:47:23,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:47:23,340 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 09:47:23,341 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 09:47:23,341 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:47:23,341 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:47:23,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:47:23,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:47:23,341 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:47:23,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:47:23,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:47:23,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:47:23,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:47:23,342 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 09:47:23,342 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 09:47:23,342 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 09:47:23,342 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_fd25e92e-e5f8-4001-a166-588b6ff09292/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 -> eb5e103dbe59a250cbe01613b667895523582d5d [2019-11-20 09:47:23,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:47:23,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:47:23,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:47:23,538 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:47:23,540 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:47:23,540 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2019-11-20 09:47:23,600 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/bin/uautomizer/data/b4af7ff5b/ec1a1972f9ea46559532ac10b917891e/FLAG7a42ed678 [2019-11-20 09:47:24,142 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:47:24,142 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2019-11-20 09:47:24,155 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/bin/uautomizer/data/b4af7ff5b/ec1a1972f9ea46559532ac10b917891e/FLAG7a42ed678 [2019-11-20 09:47:24,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/bin/uautomizer/data/b4af7ff5b/ec1a1972f9ea46559532ac10b917891e [2019-11-20 09:47:24,447 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:47:24,448 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 09:47:24,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:47:24,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:47:24,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:47:24,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:47:24" (1/1) ... [2019-11-20 09:47:24,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1239f565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:24, skipping insertion in model container [2019-11-20 09:47:24,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:47:24" (1/1) ... [2019-11-20 09:47:24,462 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:47:24,503 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:47:24,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:47:24,871 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:47:24,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:47:24,969 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:47:24,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:24 WrapperNode [2019-11-20 09:47:24,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:47:24,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:47:24,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:47:24,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:47:24,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:24" (1/1) ... [2019-11-20 09:47:24,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:24" (1/1) ... [2019-11-20 09:47:25,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:24" (1/1) ... [2019-11-20 09:47:25,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:24" (1/1) ... [2019-11-20 09:47:25,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:24" (1/1) ... [2019-11-20 09:47:25,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:24" (1/1) ... [2019-11-20 09:47:25,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:24" (1/1) ... [2019-11-20 09:47:25,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:47:25,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:47:25,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:47:25,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:47:25,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/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 [2019-11-20 09:47:25,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 09:47:25,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:47:25,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 09:47:25,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 09:47:25,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 09:47:25,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 09:47:25,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 09:47:25,121 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2019-11-20 09:47:25,121 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2019-11-20 09:47:25,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 09:47:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-20 09:47:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 09:47:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 09:47:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 09:47:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 09:47:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 09:47:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 09:47:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 09:47:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 09:47:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 09:47:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 09:47:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 09:47:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 09:47:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 09:47:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 09:47:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 09:47:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 09:47:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 09:47:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 09:47:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 09:47:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 09:47:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 09:47:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 09:47:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 09:47:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 09:47:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 09:47:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 09:47:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 09:47:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 09:47:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 09:47:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 09:47:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 09:47:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 09:47:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 09:47:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 09:47:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 09:47:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 09:47:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 09:47:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 09:47:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 09:47:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 09:47:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 09:47:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 09:47:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 09:47:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 09:47:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 09:47:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 09:47:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 09:47:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 09:47:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 09:47:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 09:47:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 09:47:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 09:47:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 09:47:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 09:47:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 09:47:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 09:47:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 09:47:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 09:47:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 09:47:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 09:47:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 09:47:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 09:47:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 09:47:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 09:47:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 09:47:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 09:47:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 09:47:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 09:47:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 09:47:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 09:47:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 09:47:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 09:47:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 09:47:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 09:47:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 09:47:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 09:47:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 09:47:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 09:47:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 09:47:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 09:47:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 09:47:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 09:47:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 09:47:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 09:47:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 09:47:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 09:47:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 09:47:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 09:47:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 09:47:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 09:47:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 09:47:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 09:47:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 09:47:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 09:47:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 09:47:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 09:47:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 09:47:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 09:47:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 09:47:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 09:47:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 09:47:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 09:47:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 09:47:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 09:47:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 09:47:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 09:47:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 09:47:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2019-11-20 09:47:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 09:47:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 09:47:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 09:47:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 09:47:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2019-11-20 09:47:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 09:47:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 09:47:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 09:47:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:47:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 09:47:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:47:25,809 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:47:25,809 INFO L285 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-20 09:47:25,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:47:25 BoogieIcfgContainer [2019-11-20 09:47:25,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:47:25,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:47:25,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:47:25,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:47:25,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:47:24" (1/3) ... [2019-11-20 09:47:25,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40626f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:47:25, skipping insertion in model container [2019-11-20 09:47:25,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:24" (2/3) ... [2019-11-20 09:47:25,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40626f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:47:25, skipping insertion in model container [2019-11-20 09:47:25,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:47:25" (3/3) ... [2019-11-20 09:47:25,823 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0019_1-1.i [2019-11-20 09:47:25,839 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:47:25,850 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2019-11-20 09:47:25,863 INFO L249 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2019-11-20 09:47:25,882 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:47:25,882 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 09:47:25,882 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:47:25,882 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:47:25,882 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:47:25,883 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:47:25,883 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:47:25,883 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:47:25,900 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-11-20 09:47:25,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 09:47:25,909 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:47:25,910 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:47:25,910 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 09:47:25,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:47:25,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1782233127, now seen corresponding path program 1 times [2019-11-20 09:47:25,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:47:25,926 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1690839429] [2019-11-20 09:47:25,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/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 [2019-11-20 09:47:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:47:26,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 09:47:26,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:47:26,226 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 [2019-11-20 09:47:26,226 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:26,238 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:26,239 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:26,239 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 09:47:26,294 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:26,294 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 1 case distinctions, treesize of input 14 treesize of output 30 [2019-11-20 09:47:26,298 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:26,339 INFO L567 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2019-11-20 09:47:26,340 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:47:26,340 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2019-11-20 09:47:26,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:47:26,368 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:47:26,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:47:26,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1690839429] [2019-11-20 09:47:26,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:47:26,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 09:47:26,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114629839] [2019-11-20 09:47:26,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 09:47:26,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:47:26,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 09:47:26,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:47:26,420 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 5 states. [2019-11-20 09:47:26,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:47:26,796 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2019-11-20 09:47:26,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 09:47:26,798 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-20 09:47:26,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:47:26,814 INFO L225 Difference]: With dead ends: 70 [2019-11-20 09:47:26,814 INFO L226 Difference]: Without dead ends: 67 [2019-11-20 09:47:26,816 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 09:47:26,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-11-20 09:47:26,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2019-11-20 09:47:26,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-11-20 09:47:26,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2019-11-20 09:47:26,882 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 9 [2019-11-20 09:47:26,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:47:26,882 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2019-11-20 09:47:26,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 09:47:26,883 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2019-11-20 09:47:26,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 09:47:26,883 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:47:26,883 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:47:27,087 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:47:27,087 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 09:47:27,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:47:27,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1782233128, now seen corresponding path program 1 times [2019-11-20 09:47:27,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:47:27,089 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1327465807] [2019-11-20 09:47:27,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/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 [2019-11-20 09:47:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:47:27,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 09:47:27,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:47:27,305 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 [2019-11-20 09:47:27,305 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:27,315 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:27,320 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 [2019-11-20 09:47:27,321 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:27,329 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:27,329 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:27,330 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 09:47:27,417 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:27,418 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 13 treesize of output 17 [2019-11-20 09:47:27,419 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:27,439 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:27,445 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-11-20 09:47:27,446 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:27,464 INFO L567 ElimStorePlain]: treesize reduction 4, result has 77.8 percent of original size [2019-11-20 09:47:27,465 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:47:27,465 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:14 [2019-11-20 09:47:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:47:27,487 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:47:27,531 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:47:27,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:47:27,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1327465807] [2019-11-20 09:47:27,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:47:27,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-11-20 09:47:27,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677366768] [2019-11-20 09:47:27,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 09:47:27,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:47:27,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 09:47:27,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 09:47:27,827 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand 8 states. [2019-11-20 09:47:28,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:47:28,787 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-11-20 09:47:28,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 09:47:28,788 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-11-20 09:47:28,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:47:28,790 INFO L225 Difference]: With dead ends: 65 [2019-11-20 09:47:28,790 INFO L226 Difference]: Without dead ends: 65 [2019-11-20 09:47:28,791 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-11-20 09:47:28,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-11-20 09:47:28,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-11-20 09:47:28,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-20 09:47:28,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2019-11-20 09:47:28,800 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 9 [2019-11-20 09:47:28,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:47:28,801 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2019-11-20 09:47:28,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 09:47:28,801 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-11-20 09:47:28,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 09:47:28,802 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:47:28,802 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:47:29,004 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:47:29,005 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 09:47:29,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:47:29,005 INFO L82 PathProgramCache]: Analyzing trace with hash -965916439, now seen corresponding path program 1 times [2019-11-20 09:47:29,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:47:29,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [997766970] [2019-11-20 09:47:29,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/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 [2019-11-20 09:47:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:47:29,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 09:47:29,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:47:29,206 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 [2019-11-20 09:47:29,207 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:29,234 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:29,239 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 [2019-11-20 09:47:29,239 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:29,246 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:29,246 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:29,247 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 09:47:29,292 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 09:47:29,294 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-11-20 09:47:29,294 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:29,309 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:29,321 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 09:47:29,322 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-20 09:47:29,323 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:29,334 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:29,335 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:47:29,336 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:14 [2019-11-20 09:47:29,405 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_67|], 3=[|v_#length_43|]} [2019-11-20 09:47:29,434 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:29,435 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 11 treesize of output 15 [2019-11-20 09:47:29,436 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:29,457 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:29,493 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:29,494 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 46 [2019-11-20 09:47:29,495 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:29,534 INFO L567 ElimStorePlain]: treesize reduction 28, result has 40.4 percent of original size [2019-11-20 09:47:29,535 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 09:47:29,535 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:19 [2019-11-20 09:47:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:47:29,550 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:47:29,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:47:29,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:47:29,720 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:29,720 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 31 treesize of output 35 [2019-11-20 09:47:29,721 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:29,742 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:29,742 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 28 treesize of output 32 [2019-11-20 09:47:29,743 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:29,761 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:29,762 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 26 treesize of output 30 [2019-11-20 09:47:29,763 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:29,809 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:29,810 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2019-11-20 09:47:29,810 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:86, output treesize:53 [2019-11-20 09:47:29,921 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:47:30,115 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-20 09:47:30,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:47:30,288 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [997766970] [2019-11-20 09:47:30,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:47:30,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 10 [2019-11-20 09:47:30,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222451191] [2019-11-20 09:47:30,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 09:47:30,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:47:30,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 09:47:30,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-11-20 09:47:30,290 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 11 states. [2019-11-20 09:47:31,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:47:31,182 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-11-20 09:47:31,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 09:47:31,183 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 11 [2019-11-20 09:47:31,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:47:31,184 INFO L225 Difference]: With dead ends: 63 [2019-11-20 09:47:31,185 INFO L226 Difference]: Without dead ends: 63 [2019-11-20 09:47:31,185 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-11-20 09:47:31,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-11-20 09:47:31,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-11-20 09:47:31,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-11-20 09:47:31,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2019-11-20 09:47:31,192 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 11 [2019-11-20 09:47:31,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:47:31,193 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2019-11-20 09:47:31,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 09:47:31,193 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-11-20 09:47:31,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 09:47:31,194 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:47:31,194 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:47:31,394 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:47:31,395 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 09:47:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:47:31,395 INFO L82 PathProgramCache]: Analyzing trace with hash -532763157, now seen corresponding path program 1 times [2019-11-20 09:47:31,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:47:31,396 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2131551573] [2019-11-20 09:47:31,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/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 [2019-11-20 09:47:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:47:31,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 09:47:31,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:47:31,604 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 [2019-11-20 09:47:31,604 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:31,615 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:31,615 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:31,616 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 09:47:31,641 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-20 09:47:31,642 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:31,654 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:31,657 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:31,657 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:20 [2019-11-20 09:47:31,773 INFO L343 Elim1Store]: treesize reduction 12, result has 86.2 percent of original size [2019-11-20 09:47:31,773 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 91 [2019-11-20 09:47:31,774 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:31,818 INFO L567 ElimStorePlain]: treesize reduction 40, result has 46.7 percent of original size [2019-11-20 09:47:31,818 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:31,818 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:35 [2019-11-20 09:47:31,877 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 09:47:31,878 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2019-11-20 09:47:31,878 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:31,907 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:31,908 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:31,908 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:53 [2019-11-20 09:47:31,974 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2019-11-20 09:47:31,976 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:47:31,993 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:31,994 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 09:47:31,995 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:51, output treesize:26 [2019-11-20 09:47:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:47:32,034 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:47:32,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:47:32,167 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2131551573] [2019-11-20 09:47:32,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:47:32,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 5] imperfect sequences [] total 12 [2019-11-20 09:47:32,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483155816] [2019-11-20 09:47:32,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 09:47:32,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:47:32,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 09:47:32,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2019-11-20 09:47:32,169 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 13 states. [2019-11-20 09:47:32,521 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-11-20 09:47:32,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:47:32,916 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2019-11-20 09:47:32,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 09:47:32,916 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2019-11-20 09:47:32,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:47:32,917 INFO L225 Difference]: With dead ends: 62 [2019-11-20 09:47:32,917 INFO L226 Difference]: Without dead ends: 62 [2019-11-20 09:47:32,918 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2019-11-20 09:47:32,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-20 09:47:32,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-11-20 09:47:32,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-20 09:47:32,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2019-11-20 09:47:32,924 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 13 [2019-11-20 09:47:32,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:47:32,925 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2019-11-20 09:47:32,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 09:47:32,925 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2019-11-20 09:47:32,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 09:47:32,926 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:47:32,926 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:47:33,132 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:47:33,133 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 09:47:33,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:47:33,133 INFO L82 PathProgramCache]: Analyzing trace with hash -532763156, now seen corresponding path program 1 times [2019-11-20 09:47:33,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:47:33,134 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1916196157] [2019-11-20 09:47:33,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/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 [2019-11-20 09:47:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:47:33,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-20 09:47:33,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:47:33,365 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 [2019-11-20 09:47:33,365 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,380 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:33,385 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 [2019-11-20 09:47:33,385 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,398 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:33,398 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,398 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2019-11-20 09:47:33,432 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-20 09:47:33,432 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,456 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:33,462 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-20 09:47:33,462 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,477 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:33,478 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,478 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:33 [2019-11-20 09:47:33,525 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:33,525 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 17 treesize of output 21 [2019-11-20 09:47:33,526 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,549 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:33,553 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2019-11-20 09:47:33,554 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,566 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:33,567 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,567 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:33 [2019-11-20 09:47:33,600 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 09:47:33,601 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-11-20 09:47:33,602 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,641 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:33,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 09:47:33,648 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2019-11-20 09:47:33,648 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,670 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:33,670 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,671 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:59, output treesize:47 [2019-11-20 09:47:33,718 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 20 [2019-11-20 09:47:33,719 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:47:33,737 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:33,745 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2019-11-20 09:47:33,746 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:33,759 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:33,760 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:47:33,761 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:54, output treesize:20 [2019-11-20 09:47:33,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:47:33,795 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:47:33,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:47:34,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:47:34,273 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1916196157] [2019-11-20 09:47:34,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:47:34,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 5] imperfect sequences [] total 12 [2019-11-20 09:47:34,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814606295] [2019-11-20 09:47:34,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 09:47:34,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:47:34,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 09:47:34,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-11-20 09:47:34,275 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 13 states. [2019-11-20 09:47:34,821 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-11-20 09:47:35,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:47:35,477 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-11-20 09:47:35,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 09:47:35,478 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2019-11-20 09:47:35,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:47:35,479 INFO L225 Difference]: With dead ends: 61 [2019-11-20 09:47:35,479 INFO L226 Difference]: Without dead ends: 61 [2019-11-20 09:47:35,480 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2019-11-20 09:47:35,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-20 09:47:35,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-11-20 09:47:35,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-20 09:47:35,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2019-11-20 09:47:35,485 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 13 [2019-11-20 09:47:35,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:47:35,485 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2019-11-20 09:47:35,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 09:47:35,485 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-11-20 09:47:35,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 09:47:35,486 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:47:35,486 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:47:35,686 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:47:35,687 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 09:47:35,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:47:35,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1643053418, now seen corresponding path program 1 times [2019-11-20 09:47:35,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:47:35,687 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [513995192] [2019-11-20 09:47:35,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd25e92e-e5f8-4001-a166-588b6ff09292/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 [2019-11-20 09:47:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:47:35,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 09:47:35,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:47:35,910 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-20 09:47:35,910 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:35,918 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:35,918 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:35,918 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2019-11-20 09:47:35,945 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:35,946 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 1 case distinctions, treesize of input 12 treesize of output 28 [2019-11-20 09:47:35,946 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:35,968 INFO L567 ElimStorePlain]: treesize reduction 14, result has 60.0 percent of original size [2019-11-20 09:47:35,968 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:35,969 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:21 [2019-11-20 09:47:35,988 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_32|], 2=[|v_#memory_$Pointer$.offset_31|]} [2019-11-20 09:47:35,993 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-11-20 09:47:35,994 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:36,021 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:36,027 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 09:47:36,028 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-11-20 09:47:36,029 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:36,057 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:36,058 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:36,058 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:49, output treesize:27 [2019-11-20 09:47:36,099 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2019-11-20 09:47:36,099 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:36,116 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:36,116 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:36,116 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:30 [2019-11-20 09:47:36,157 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 09:47:36,185 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:36,185 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 56 [2019-11-20 09:47:36,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:47:36,187 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:36,219 INFO L567 ElimStorePlain]: treesize reduction 35, result has 38.6 percent of original size [2019-11-20 09:47:36,220 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:47:36,220 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:22 [2019-11-20 09:47:36,263 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 17 treesize of output 9 [2019-11-20 09:47:36,263 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:47:36,270 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:36,271 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:47:36,271 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:11 [2019-11-20 09:47:36,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:47:36,295 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:47:36,322 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:47:36,327 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:47:36,328 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:47:36,328 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2019-11-20 09:47:42,233 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:47:42,233 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: incompatible size at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:152) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) 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) [2019-11-20 09:47:42,237 INFO L168 Benchmark]: Toolchain (without parser) took 17788.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.1 MB). Free memory was 940.7 MB in the beginning and 756.8 MB in the end (delta: 183.9 MB). Peak memory consumption was 370.0 MB. Max. memory is 11.5 GB. [2019-11-20 09:47:42,237 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:47:42,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -135.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-20 09:47:42,238 INFO L168 Benchmark]: Boogie Preprocessor took 68.04 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. [2019-11-20 09:47:42,238 INFO L168 Benchmark]: RCFGBuilder took 771.38 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-20 09:47:42,239 INFO L168 Benchmark]: TraceAbstraction took 16423.84 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 86.0 MB). Free memory was 1.0 GB in the beginning and 756.8 MB in the end (delta: 259.3 MB). Peak memory consumption was 345.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:47:42,240 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 521.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -135.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.04 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 771.38 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16423.84 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 86.0 MB). Free memory was 1.0 GB in the beginning and 756.8 MB in the end (delta: 259.3 MB). Peak memory consumption was 345.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: incompatible size de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: incompatible size: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...