./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-examples/relax-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-examples/relax-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/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 dbd52e95eb1af7e22fe9d404e18d13efde04c9db .......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:48:35,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:48:35,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:48:35,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:48:35,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:48:35,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:48:35,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:48:35,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:48:35,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:48:35,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:48:35,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:48:35,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:48:35,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:48:35,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:48:35,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:48:35,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:48:35,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:48:35,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:48:35,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:48:35,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:48:35,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:48:35,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:48:35,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:48:35,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:48:35,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:48:35,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:48:35,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:48:35,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:48:35,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:48:35,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:48:35,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:48:35,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:48:35,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:48:35,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:48:35,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:48:35,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:48:35,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:48:35,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:48:35,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:48:35,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:48:35,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:48:35,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-29 18:48:35,691 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:48:35,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:48:35,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:48:35,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:48:35,693 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:48:35,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:48:35,694 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:48:35,694 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:48:35,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:48:35,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:48:35,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:48:35,696 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 18:48:35,696 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 18:48:35,696 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 18:48:35,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:48:35,697 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 18:48:35,697 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:48:35,697 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:48:35,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:48:35,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:48:35,698 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:48:35,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:48:35,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:48:35,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:48:35,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:48:35,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:48:35,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:48:35,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:48:35,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbd52e95eb1af7e22fe9d404e18d13efde04c9db [2020-11-29 18:48:35,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:48:35,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:48:35,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:48:35,986 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:48:35,987 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:48:35,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/../../sv-benchmarks/c/array-examples/relax-1.i [2020-11-29 18:48:36,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/data/9b8ef7501/bf5b91a86719474a841d86d3ef73ec50/FLAG446b36e73 [2020-11-29 18:48:36,735 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:48:36,735 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/sv-benchmarks/c/array-examples/relax-1.i [2020-11-29 18:48:36,761 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/data/9b8ef7501/bf5b91a86719474a841d86d3ef73ec50/FLAG446b36e73 [2020-11-29 18:48:37,072 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/data/9b8ef7501/bf5b91a86719474a841d86d3ef73ec50 [2020-11-29 18:48:37,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:48:37,077 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 18:48:37,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:48:37,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:48:37,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:48:37,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:48:37" (1/1) ... [2020-11-29 18:48:37,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@169f54bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:37, skipping insertion in model container [2020-11-29 18:48:37,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:48:37" (1/1) ... [2020-11-29 18:48:37,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:48:37,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:48:37,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:48:37,458 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:48:37,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:48:37,599 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:48:37,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:37 WrapperNode [2020-11-29 18:48:37,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:48:37,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:48:37,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:48:37,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:48:37,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:37" (1/1) ... [2020-11-29 18:48:37,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:37" (1/1) ... [2020-11-29 18:48:37,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:37" (1/1) ... [2020-11-29 18:48:37,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:37" (1/1) ... [2020-11-29 18:48:37,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:37" (1/1) ... [2020-11-29 18:48:37,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:37" (1/1) ... [2020-11-29 18:48:37,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:37" (1/1) ... [2020-11-29 18:48:37,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:48:37,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:48:37,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:48:37,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:48:37,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:48:37,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 18:48:37,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:48:37,761 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-29 18:48:37,762 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-29 18:48:37,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-29 18:48:37,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-29 18:48:37,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-29 18:48:37,762 INFO L138 BoogieDeclarations]: Found implementation of procedure is_relaxed_prefix [2020-11-29 18:48:37,762 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 18:48:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 18:48:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-29 18:48:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-11-29 18:48:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-29 18:48:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-29 18:48:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-29 18:48:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-29 18:48:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:48:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-29 18:48:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-29 18:48:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-29 18:48:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-29 18:48:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-29 18:48:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-29 18:48:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-29 18:48:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-29 18:48:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-29 18:48:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-29 18:48:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-29 18:48:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-29 18:48:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-29 18:48:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-29 18:48:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-29 18:48:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-29 18:48:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-29 18:48:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-29 18:48:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-29 18:48:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-29 18:48:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-29 18:48:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-29 18:48:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-29 18:48:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-29 18:48:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-29 18:48:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-29 18:48:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-29 18:48:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-29 18:48:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-29 18:48:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-29 18:48:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-29 18:48:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-29 18:48:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-29 18:48:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-29 18:48:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-29 18:48:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-29 18:48:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-29 18:48:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-29 18:48:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-29 18:48:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-29 18:48:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-29 18:48:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-29 18:48:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-29 18:48:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-29 18:48:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-29 18:48:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-29 18:48:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-29 18:48:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-29 18:48:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-29 18:48:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-29 18:48:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-29 18:48:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-29 18:48:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-29 18:48:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-29 18:48:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-29 18:48:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-29 18:48:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-29 18:48:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-29 18:48:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-29 18:48:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-29 18:48:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-29 18:48:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-29 18:48:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-29 18:48:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-29 18:48:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-29 18:48:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-29 18:48:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-29 18:48:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-29 18:48:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-29 18:48:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-29 18:48:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-29 18:48:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-29 18:48:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-29 18:48:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-29 18:48:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-29 18:48:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-29 18:48:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-29 18:48:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-29 18:48:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-29 18:48:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-29 18:48:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-29 18:48:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-29 18:48:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-29 18:48:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-29 18:48:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-29 18:48:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-29 18:48:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-29 18:48:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-29 18:48:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-29 18:48:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-29 18:48:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-29 18:48:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-29 18:48:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-29 18:48:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-29 18:48:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-29 18:48:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-29 18:48:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-29 18:48:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-29 18:48:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-29 18:48:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-29 18:48:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-29 18:48:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-29 18:48:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-29 18:48:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure is_relaxed_prefix [2020-11-29 18:48:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 18:48:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 18:48:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 18:48:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 18:48:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:48:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 18:48:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:48:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:48:38,523 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:48:38,524 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-11-29 18:48:38,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:38 BoogieIcfgContainer [2020-11-29 18:48:38,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:48:38,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:48:38,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:48:38,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:48:38,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:48:37" (1/3) ... [2020-11-29 18:48:38,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a12d4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:48:38, skipping insertion in model container [2020-11-29 18:48:38,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:37" (2/3) ... [2020-11-29 18:48:38,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a12d4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:48:38, skipping insertion in model container [2020-11-29 18:48:38,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:38" (3/3) ... [2020-11-29 18:48:38,548 INFO L111 eAbstractionObserver]: Analyzing ICFG relax-1.i [2020-11-29 18:48:38,557 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:48:38,562 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 32 error locations. [2020-11-29 18:48:38,577 INFO L253 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2020-11-29 18:48:38,605 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:48:38,605 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 18:48:38,605 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:48:38,606 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:48:38,606 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:48:38,606 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:48:38,606 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:48:38,606 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:48:38,626 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-11-29 18:48:38,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 18:48:38,640 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:48:38,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:48:38,641 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, is_relaxed_prefixErr2REQUIRES_VIOLATION, is_relaxed_prefixErr3REQUIRES_VIOLATION, is_relaxed_prefixErr0REQUIRES_VIOLATION, is_relaxed_prefixErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr20ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-29 18:48:38,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:48:38,648 INFO L82 PathProgramCache]: Analyzing trace with hash -616614522, now seen corresponding path program 1 times [2020-11-29 18:48:38,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:48:38,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443668545] [2020-11-29 18:48:38,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:48:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:48:38,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 18:48:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:48:38,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:48:38,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443668545] [2020-11-29 18:48:38,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:48:38,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:48:38,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267918368] [2020-11-29 18:48:38,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:48:38,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:48:38,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:48:38,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:48:38,998 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 6 states. [2020-11-29 18:48:39,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:48:39,527 INFO L93 Difference]: Finished difference Result 98 states and 115 transitions. [2020-11-29 18:48:39,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:48:39,529 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-29 18:48:39,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:48:39,540 INFO L225 Difference]: With dead ends: 98 [2020-11-29 18:48:39,540 INFO L226 Difference]: Without dead ends: 95 [2020-11-29 18:48:39,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:48:39,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-11-29 18:48:39,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-11-29 18:48:39,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-29 18:48:39,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 112 transitions. [2020-11-29 18:48:39,595 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 112 transitions. Word has length 11 [2020-11-29 18:48:39,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:48:39,595 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 112 transitions. [2020-11-29 18:48:39,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:48:39,596 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 112 transitions. [2020-11-29 18:48:39,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 18:48:39,596 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:48:39,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:48:39,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:48:39,597 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, is_relaxed_prefixErr2REQUIRES_VIOLATION, is_relaxed_prefixErr3REQUIRES_VIOLATION, is_relaxed_prefixErr0REQUIRES_VIOLATION, is_relaxed_prefixErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr20ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-29 18:48:39,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:48:39,598 INFO L82 PathProgramCache]: Analyzing trace with hash -616614521, now seen corresponding path program 1 times [2020-11-29 18:48:39,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:48:39,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555861383] [2020-11-29 18:48:39,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:48:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:48:39,655 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:48:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:48:39,687 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:48:39,711 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:48:39,711 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:48:39,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:48:39,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:48:39 BoogieIcfgContainer [2020-11-29 18:48:39,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:48:39,735 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:48:39,735 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:48:39,735 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:48:39,735 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:38" (3/4) ... [2020-11-29 18:48:39,737 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 18:48:39,775 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_109c114d-0109-42c1-af72-6569b7deb677/bin/uautomizer/witness.graphml [2020-11-29 18:48:39,775 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:48:39,777 INFO L168 Benchmark]: Toolchain (without parser) took 2699.15 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 69.6 MB in the beginning and 51.6 MB in the end (delta: 18.1 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:39,778 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 98.6 MB. Free memory is still 57.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:48:39,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.49 ms. Allocated memory is still 98.6 MB. Free memory was 69.4 MB in the beginning and 62.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:39,779 INFO L168 Benchmark]: Boogie Preprocessor took 94.18 ms. Allocated memory is still 98.6 MB. Free memory was 62.2 MB in the beginning and 59.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:39,783 INFO L168 Benchmark]: RCFGBuilder took 842.31 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.4 MB in the beginning and 94.8 MB in the end (delta: -35.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:39,784 INFO L168 Benchmark]: TraceAbstraction took 1193.83 ms. Allocated memory is still 119.5 MB. Free memory was 94.8 MB in the beginning and 53.7 MB in the end (delta: 41.2 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:39,785 INFO L168 Benchmark]: Witness Printer took 40.32 ms. Allocated memory is still 119.5 MB. Free memory was 53.7 MB in the beginning and 51.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:39,788 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 98.6 MB. Free memory is still 57.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 522.49 ms. Allocated memory is still 98.6 MB. Free memory was 69.4 MB in the beginning and 62.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.18 ms. Allocated memory is still 98.6 MB. Free memory was 62.2 MB in the beginning and 59.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 842.31 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.4 MB in the beginning and 94.8 MB in the end (delta: -35.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1193.83 ms. Allocated memory is still 119.5 MB. Free memory was 94.8 MB in the beginning and 53.7 MB in the end (delta: 41.2 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. * Witness Printer took 40.32 ms. Allocated memory is still 119.5 MB. Free memory was 53.7 MB in the beginning and 51.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 584]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L600] int *pat=malloc(sizeof(int)*pat_len); [L601] int *a=malloc(sizeof(int)*a_len); VAL [a={1:0}, a_len=-2, malloc(sizeof(int)*a_len)={1:0}, malloc(sizeof(int)*pat_len)={-1:0}, pat={-1:0}, pat_len=-4294967295] [L602] CALL is_relaxed_prefix(pat, pat_len, a, a_len) VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={1:0}, pat={-1:0}] [L579] COND FALSE !(pat_length>a_length+1) [L581] int shift=0; [L582] int i=0; VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={1:0}, a={1:0}, a_length=4294967294, i=0, pat={-1:0}, pat={-1:0}, pat_length=1, shift=0] [L582] COND TRUE i