./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-optional_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-optional_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9782fe34c3bae6ab09bbe7588de1b0d436c1fccc .................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:48:02,530 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:48:02,532 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:48:02,538 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:48:02,539 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:48:02,539 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:48:02,540 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:48:02,541 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:48:02,543 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:48:02,543 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:48:02,544 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:48:02,544 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:48:02,545 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:48:02,545 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:48:02,546 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:48:02,547 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:48:02,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:48:02,548 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:48:02,550 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:48:02,551 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:48:02,551 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:48:02,552 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:48:02,554 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:48:02,554 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:48:02,554 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:48:02,555 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:48:02,556 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:48:02,556 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:48:02,557 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:48:02,558 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:48:02,558 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:48:02,558 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:48:02,558 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:48:02,559 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:48:02,559 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:48:02,560 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:48:02,560 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 12:48:02,569 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:48:02,570 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:48:02,570 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:48:02,571 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:48:02,571 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:48:02,571 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:48:02,571 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:48:02,572 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:48:02,572 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:48:02,572 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:48:02,572 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:48:02,572 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:48:02,572 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:48:02,572 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:48:02,573 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:48:02,573 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:48:02,573 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:48:02,573 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:48:02,573 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:48:02,573 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:48:02,573 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:48:02,574 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:48:02,574 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:48:02,574 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:48:02,574 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:48:02,574 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:48:02,574 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:48:02,574 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:48:02,575 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:48:02,575 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:48:02,575 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/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 ! call(__VERIFIER_error())) ) 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 -> 9782fe34c3bae6ab09bbe7588de1b0d436c1fccc [2018-11-18 12:48:02,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:48:02,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:48:02,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:48:02,608 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:48:02,608 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:48:02,608 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/sll-optional_false-unreach-call_false-valid-memcleanup.i [2018-11-18 12:48:02,645 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/uautomizer/data/caeadab24/2595d43b73874b2db142953a4ab91312/FLAGf312961ef [2018-11-18 12:48:03,073 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:48:03,074 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/sv-benchmarks/c/forester-heap/sll-optional_false-unreach-call_false-valid-memcleanup.i [2018-11-18 12:48:03,080 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/uautomizer/data/caeadab24/2595d43b73874b2db142953a4ab91312/FLAGf312961ef [2018-11-18 12:48:03,089 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/uautomizer/data/caeadab24/2595d43b73874b2db142953a4ab91312 [2018-11-18 12:48:03,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:48:03,092 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:48:03,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:48:03,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:48:03,094 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:48:03,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:48:03" (1/1) ... [2018-11-18 12:48:03,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2713e74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:03, skipping insertion in model container [2018-11-18 12:48:03,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:48:03" (1/1) ... [2018-11-18 12:48:03,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:48:03,130 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:48:03,316 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:48:03,323 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:48:03,349 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:48:03,427 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:48:03,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:03 WrapperNode [2018-11-18 12:48:03,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:48:03,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:48:03,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:48:03,428 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:48:03,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:03" (1/1) ... [2018-11-18 12:48:03,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:03" (1/1) ... [2018-11-18 12:48:03,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:03" (1/1) ... [2018-11-18 12:48:03,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:03" (1/1) ... [2018-11-18 12:48:03,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:03" (1/1) ... [2018-11-18 12:48:03,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:03" (1/1) ... [2018-11-18 12:48:03,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:03" (1/1) ... [2018-11-18 12:48:03,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:48:03,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:48:03,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:48:03,477 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:48:03,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/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 [2018-11-18 12:48:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:48:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:48:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:48:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 12:48:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 12:48:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 12:48:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 12:48:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 12:48:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 12:48:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 12:48:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 12:48:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 12:48:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 12:48:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 12:48:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 12:48:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 12:48:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 12:48:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 12:48:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 12:48:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 12:48:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 12:48:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 12:48:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 12:48:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 12:48:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 12:48:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 12:48:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 12:48:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 12:48:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 12:48:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 12:48:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 12:48:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 12:48:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 12:48:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 12:48:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 12:48:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 12:48:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 12:48:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 12:48:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 12:48:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 12:48:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 12:48:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 12:48:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 12:48:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 12:48:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 12:48:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 12:48:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 12:48:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 12:48:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 12:48:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 12:48:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 12:48:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 12:48:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 12:48:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 12:48:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 12:48:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 12:48:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 12:48:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 12:48:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 12:48:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 12:48:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 12:48:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-18 12:48:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 12:48:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 12:48:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-18 12:48:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 12:48:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 12:48:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-18 12:48:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 12:48:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 12:48:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 12:48:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 12:48:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 12:48:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 12:48:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 12:48:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 12:48:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 12:48:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 12:48:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 12:48:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 12:48:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 12:48:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 12:48:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 12:48:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 12:48:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 12:48:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 12:48:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 12:48:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 12:48:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 12:48:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 12:48:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 12:48:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 12:48:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 12:48:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 12:48:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 12:48:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 12:48:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 12:48:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 12:48:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 12:48:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 12:48:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 12:48:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 12:48:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 12:48:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 12:48:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-18 12:48:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 12:48:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 12:48:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:48:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:48:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:48:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 12:48:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:48:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 12:48:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:48:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:48:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:48:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:48:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 12:48:03,865 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:48:03,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:48:03 BoogieIcfgContainer [2018-11-18 12:48:03,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:48:03,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:48:03,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:48:03,868 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:48:03,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:48:03" (1/3) ... [2018-11-18 12:48:03,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34dfa7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:48:03, skipping insertion in model container [2018-11-18 12:48:03,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:03" (2/3) ... [2018-11-18 12:48:03,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34dfa7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:48:03, skipping insertion in model container [2018-11-18 12:48:03,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:48:03" (3/3) ... [2018-11-18 12:48:03,871 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-optional_false-unreach-call_false-valid-memcleanup.i [2018-11-18 12:48:03,876 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:48:03,882 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:48:03,891 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:48:03,911 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:48:03,912 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:48:03,912 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:48:03,912 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:48:03,912 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:48:03,912 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:48:03,912 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:48:03,912 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:48:03,913 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:48:03,925 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-18 12:48:03,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:48:03,929 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:48:03,929 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:48:03,931 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:48:03,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:48:03,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1756717195, now seen corresponding path program 1 times [2018-11-18 12:48:03,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:48:03,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:48:03,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:03,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:48:03,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:48:04,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:48:04,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:48:04,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:48:04,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:48:04,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:48:04,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:48:04,052 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-11-18 12:48:04,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:48:04,064 INFO L93 Difference]: Finished difference Result 54 states and 76 transitions. [2018-11-18 12:48:04,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:48:04,065 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-18 12:48:04,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:48:04,071 INFO L225 Difference]: With dead ends: 54 [2018-11-18 12:48:04,071 INFO L226 Difference]: Without dead ends: 24 [2018-11-18 12:48:04,073 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:48:04,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-18 12:48:04,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-18 12:48:04,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-18 12:48:04,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2018-11-18 12:48:04,094 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 16 [2018-11-18 12:48:04,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:48:04,095 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2018-11-18 12:48:04,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:48:04,095 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2018-11-18 12:48:04,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 12:48:04,095 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:48:04,096 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:48:04,096 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:48:04,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:48:04,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1109679108, now seen corresponding path program 1 times [2018-11-18 12:48:04,096 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:48:04,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:48:04,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:04,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:48:04,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:48:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:48:04,160 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:48:04,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:48:04 BoogieIcfgContainer [2018-11-18 12:48:04,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:48:04,179 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:48:04,179 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:48:04,180 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:48:04,180 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:48:03" (3/4) ... [2018-11-18 12:48:04,182 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 12:48:04,210 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9827ec1a-d472-4893-8a7b-30d44f48fd12/bin-2019/uautomizer/witness.graphml [2018-11-18 12:48:04,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:48:04,210 INFO L168 Benchmark]: Toolchain (without parser) took 1119.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 950.0 MB in the beginning and 1.0 GB in the end (delta: -83.5 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:48:04,211 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:48:04,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:48:04,212 INFO L168 Benchmark]: Boogie Preprocessor took 48.75 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:48:04,212 INFO L168 Benchmark]: RCFGBuilder took 388.27 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:48:04,212 INFO L168 Benchmark]: TraceAbstraction took 313.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:48:04,213 INFO L168 Benchmark]: Witness Printer took 30.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:48:04,215 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.75 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 388.27 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 313.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 30.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = ((void*)0) [L987] COND TRUE __VERIFIER_nondet_int() [L987] FCALL head->data = 2 [L987] EXPR, FCALL malloc(sizeof(SLL)) [L987] FCALL head->opt = malloc(sizeof(SLL)) [L987] EXPR, FCALL head->opt [L987] FCALL head->opt->next = ((void*)0) [L988] SLL* x = head; VAL [head={15:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, x={15:0}] [L990] COND FALSE !(__VERIFIER_nondet_int()) [L993] x = head VAL [head={15:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, x={15:0}] [L994] COND TRUE x != ((void*)0) VAL [head={15:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, x={15:0}] [L996] EXPR, FCALL x->data [L996] EXPR x->data == 2 && x->opt == x [L996] EXPR, FCALL x->opt [L996] EXPR x->data == 2 && x->opt == x VAL [head={15:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, x={15:0}, x->data=2, x->data == 2 && x->opt == x=0, x->opt={14:0}] [L996] COND TRUE !(x->data == 2 && x->opt == x) [L996] __VERIFIER_error() VAL [head={15:0}, malloc(sizeof(SLL))={15:0}, malloc(sizeof(SLL))={14:0}, x={15:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 34 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...