./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/splice-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 6b5699aa Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/splice-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 336180afe1780bd2c4e24c39131e05a2fcb6ebf1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-25 08:55:38,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:55:38,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:55:38,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:55:38,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:55:38,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:55:38,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:55:38,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:55:38,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:55:38,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:55:38,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:55:38,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:55:38,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:55:38,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:55:38,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:55:38,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:55:38,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:55:38,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:55:38,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:55:38,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:55:38,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:55:38,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:55:38,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:55:38,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:55:38,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:55:38,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:55:38,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:55:38,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:55:38,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:55:38,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:55:38,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:55:38,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:55:38,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:55:38,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:55:38,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:55:38,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:55:38,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:55:38,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:55:38,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:55:38,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:55:38,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:55:38,341 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2019-11-25 08:55:38,365 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:55:38,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:55:38,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:55:38,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:55:38,375 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:55:38,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:55:38,378 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:55:38,378 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:55:38,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:55:38,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:55:38,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:55:38,379 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-25 08:55:38,379 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-25 08:55:38,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:55:38,379 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:55:38,380 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:55:38,380 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:55:38,380 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:55:38,380 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:55:38,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:55:38,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:55:38,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:55:38,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:55:38,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:55:38,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:55:38,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:55:38,383 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:55:38,383 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:55:38,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:55:38,384 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_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 336180afe1780bd2c4e24c39131e05a2fcb6ebf1 [2019-11-25 08:55:38,556 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:55:38,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:55:38,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:55:38,572 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:55:38,573 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:55:38,574 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/../../sv-benchmarks/c/list-properties/splice-1.i [2019-11-25 08:55:38,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/data/f23eda876/abf0bdbcc83a4298befd9932dd996ee6/FLAG42bc8cb99 [2019-11-25 08:55:39,090 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:55:39,091 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/sv-benchmarks/c/list-properties/splice-1.i [2019-11-25 08:55:39,103 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/data/f23eda876/abf0bdbcc83a4298befd9932dd996ee6/FLAG42bc8cb99 [2019-11-25 08:55:39,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/data/f23eda876/abf0bdbcc83a4298befd9932dd996ee6 [2019-11-25 08:55:39,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:55:39,446 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-25 08:55:39,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:55:39,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:55:39,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:55:39,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:55:39" (1/1) ... [2019-11-25 08:55:39,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c283296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:39, skipping insertion in model container [2019-11-25 08:55:39,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:55:39" (1/1) ... [2019-11-25 08:55:39,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:55:39,502 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:55:39,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:55:39,914 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:55:39,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:55:40,052 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:55:40,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:40 WrapperNode [2019-11-25 08:55:40,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:55:40,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:55:40,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:55:40,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:55:40,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:40" (1/1) ... [2019-11-25 08:55:40,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:40" (1/1) ... [2019-11-25 08:55:40,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:40" (1/1) ... [2019-11-25 08:55:40,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:40" (1/1) ... [2019-11-25 08:55:40,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:40" (1/1) ... [2019-11-25 08:55:40,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:40" (1/1) ... [2019-11-25 08:55:40,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:40" (1/1) ... [2019-11-25 08:55:40,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:55:40,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:55:40,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:55:40,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:55:40,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:55:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-25 08:55:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:55:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:55:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-25 08:55:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-25 08:55:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-25 08:55:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-25 08:55:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-25 08:55:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-25 08:55:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-25 08:55:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-25 08:55:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-25 08:55:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-25 08:55:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-25 08:55:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-25 08:55:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-25 08:55:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-25 08:55:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-25 08:55:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-25 08:55:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-25 08:55:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-25 08:55:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-25 08:55:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-25 08:55:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-25 08:55:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-25 08:55:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-25 08:55:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-25 08:55:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-25 08:55:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-25 08:55:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-25 08:55:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-25 08:55:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-25 08:55:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-25 08:55:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-25 08:55:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-25 08:55:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-25 08:55:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-25 08:55:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-25 08:55:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-25 08:55:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-25 08:55:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-25 08:55:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-25 08:55:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-25 08:55:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-25 08:55:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-25 08:55:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-25 08:55:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-25 08:55:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-25 08:55:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-25 08:55:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-25 08:55:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-25 08:55:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-25 08:55:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-25 08:55:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-25 08:55:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-25 08:55:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-25 08:55:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-25 08:55:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-25 08:55:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-25 08:55:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-25 08:55:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-25 08:55:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-25 08:55:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-25 08:55:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-25 08:55:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-25 08:55:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-25 08:55:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-25 08:55:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-25 08:55:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-25 08:55:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-25 08:55:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-25 08:55:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-25 08:55:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-25 08:55:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-25 08:55:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-25 08:55:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-25 08:55:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-25 08:55:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-25 08:55:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-25 08:55:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-25 08:55:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-25 08:55:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-25 08:55:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-25 08:55:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-25 08:55:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-25 08:55:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-25 08:55:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-25 08:55:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-25 08:55:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-25 08:55:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-25 08:55:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-25 08:55:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-25 08:55:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-25 08:55:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-25 08:55:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-25 08:55:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-25 08:55:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-25 08:55:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-25 08:55:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-25 08:55:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-25 08:55:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-25 08:55:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-25 08:55:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-25 08:55:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-25 08:55:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-25 08:55:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-25 08:55:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-25 08:55:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-25 08:55:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-25 08:55:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-25 08:55:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-25 08:55:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-25 08:55:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-25 08:55:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-25 08:55:40,218 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-25 08:55:40,218 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-25 08:55:40,218 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-25 08:55:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-25 08:55:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-25 08:55:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-25 08:55:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-25 08:55:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:55:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:55:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-25 08:55:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-25 08:55:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:55:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-25 08:55:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:55:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:55:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:55:40,547 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-25 08:55:40,938 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:55:40,938 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-25 08:55:40,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:40 BoogieIcfgContainer [2019-11-25 08:55:40,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:55:40,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:55:40,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:55:40,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:55:40,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:55:39" (1/3) ... [2019-11-25 08:55:40,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b091660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:55:40, skipping insertion in model container [2019-11-25 08:55:40,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:40" (2/3) ... [2019-11-25 08:55:40,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b091660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:55:40, skipping insertion in model container [2019-11-25 08:55:40,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:40" (3/3) ... [2019-11-25 08:55:40,951 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-1.i [2019-11-25 08:55:40,959 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:55:40,965 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2019-11-25 08:55:40,976 INFO L249 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2019-11-25 08:55:40,995 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:55:40,995 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-25 08:55:40,995 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:55:40,995 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:55:40,995 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:55:40,995 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:55:40,995 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:55:40,996 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:55:41,009 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2019-11-25 08:55:41,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:55:41,017 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:55:41,017 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:55:41,018 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-25 08:55:41,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:41,023 INFO L82 PathProgramCache]: Analyzing trace with hash 238528999, now seen corresponding path program 1 times [2019-11-25 08:55:41,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:55:41,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1863821980] [2019-11-25 08:55:41,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:55:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:55:41,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:55:41,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:55:41,330 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-25 08:55:41,333 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:55:41,340 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:55:41,340 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:55:41,341 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-25 08:55:41,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:41,358 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:55:41,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:41,381 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1863821980] [2019-11-25 08:55:41,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:55:41,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-25 08:55:41,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627900483] [2019-11-25 08:55:41,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:55:41,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:55:41,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:55:41,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:55:41,406 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 4 states. [2019-11-25 08:55:41,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:55:41,777 INFO L93 Difference]: Finished difference Result 89 states and 100 transitions. [2019-11-25 08:55:41,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:55:41,779 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-25 08:55:41,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:55:41,787 INFO L225 Difference]: With dead ends: 89 [2019-11-25 08:55:41,787 INFO L226 Difference]: Without dead ends: 80 [2019-11-25 08:55:41,789 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:55:41,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-25 08:55:41,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2019-11-25 08:55:41,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-25 08:55:41,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2019-11-25 08:55:41,827 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 10 [2019-11-25 08:55:41,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:55:41,827 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2019-11-25 08:55:41,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:55:41,827 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2019-11-25 08:55:41,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:55:41,828 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:55:41,828 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:55:42,039 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:55:42,039 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-25 08:55:42,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:42,039 INFO L82 PathProgramCache]: Analyzing trace with hash 238529000, now seen corresponding path program 1 times [2019-11-25 08:55:42,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:55:42,040 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1287804244] [2019-11-25 08:55:42,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:55:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:55:42,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-25 08:55:42,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:55:42,231 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-25 08:55:42,231 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:55:42,238 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:55:42,238 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:55:42,238 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-25 08:55:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:42,267 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:55:42,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:42,374 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1287804244] [2019-11-25 08:55:42,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:55:42,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-25 08:55:42,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646457763] [2019-11-25 08:55:42,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:55:42,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:55:42,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:55:42,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:55:42,377 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand 6 states. [2019-11-25 08:55:42,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:55:42,889 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2019-11-25 08:55:42,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:55:42,890 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-25 08:55:42,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:55:42,892 INFO L225 Difference]: With dead ends: 90 [2019-11-25 08:55:42,892 INFO L226 Difference]: Without dead ends: 90 [2019-11-25 08:55:42,892 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:55:42,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-25 08:55:42,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 81. [2019-11-25 08:55:42,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-11-25 08:55:42,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2019-11-25 08:55:42,901 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 10 [2019-11-25 08:55:42,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:55:42,901 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2019-11-25 08:55:42,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:55:42,901 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2019-11-25 08:55:42,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:55:42,902 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:55:42,902 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:55:43,102 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:55:43,103 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-25 08:55:43,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:43,103 INFO L82 PathProgramCache]: Analyzing trace with hash 2141559466, now seen corresponding path program 1 times [2019-11-25 08:55:43,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:55:43,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [946671761] [2019-11-25 08:55:43,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:55:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:43,400 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-25 08:55:43,401 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:55:43,601 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:55:43,611 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-25 08:55:43,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:55:43 BoogieIcfgContainer [2019-11-25 08:55:43,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:55:43,623 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:55:43,623 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:55:43,623 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:55:43,624 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:40" (3/4) ... [2019-11-25 08:55:43,626 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:55:43,635 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-25 08:55:43,700 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_94b8ba3c-e428-4970-aa31-64f6ea119512/bin/uautomizer/witness.graphml [2019-11-25 08:55:43,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:55:43,702 INFO L168 Benchmark]: Toolchain (without parser) took 4255.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 946.2 MB in the beginning and 886.5 MB in the end (delta: 59.7 MB). Peak memory consumption was 205.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:43,702 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 1.0 GB. Free memory is still 967.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:43,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:43,703 INFO L168 Benchmark]: Boogie Preprocessor took 67.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:43,704 INFO L168 Benchmark]: RCFGBuilder took 813.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:43,704 INFO L168 Benchmark]: TraceAbstraction took 2682.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 886.5 MB in the end (delta: 166.2 MB). Peak memory consumption was 166.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:43,704 INFO L168 Benchmark]: Witness Printer took 77.52 ms. Allocated memory is still 1.2 GB. Free memory is still 886.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:43,713 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 1.0 GB. Free memory is still 967.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 606.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 813.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2682.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 886.5 MB in the end (delta: 166.2 MB). Peak memory consumption was 166.2 MB. Max. memory is 11.5 GB. * Witness Printer took 77.52 ms. Allocated memory is still 1.2 GB. Free memory is still 886.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 520]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] int flag = 1; [L522] List a = (List) malloc(sizeof(struct node)); VAL [a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}] [L523] COND FALSE !(a == 0) VAL [a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}] [L524] List t; [L525] List l1; [L526] List l2; [L527] List b; [L528] List u; [L529] List p = a; VAL [a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}] [L530] COND FALSE !(__VERIFIER_nondet_int()) [L543] p->h = 3 VAL [a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}] [L544] EXPR a->h VAL [a={-2147483648:0}, a->h=3, flag=1, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}] [L544] COND TRUE a->h == 3 [L544] return 0; VAL [\result=0, a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 104 locations, 29 error locations. Result: UNSAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 86 SDtfs, 325 SDslu, 73 SDs, 0 SdLazy, 191 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1476 SizeOfPredicates, 8 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...