./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext-properties/list-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext-properties/list-ext.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0539ac658883b1641a4574e23a99ec21471d0b6a ..................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-29 23:55:18,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:55:18,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:55:18,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:55:18,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:55:18,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:55:18,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:55:18,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:55:18,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:55:18,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:55:18,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:55:18,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:55:18,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:55:18,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:55:18,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:55:18,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:55:18,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:55:18,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:55:18,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:55:18,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:55:18,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:55:18,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:55:18,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:55:18,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:55:18,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:55:18,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:55:18,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:55:18,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:55:18,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:55:18,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:55:18,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:55:18,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:55:18,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:55:18,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:55:18,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:55:18,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:55:18,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:55:18,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:55:18,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:55:18,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:55:18,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:55:18,622 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 23:55:18,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:55:18,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:55:18,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 23:55:18,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 23:55:18,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:55:18,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:55:18,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:55:18,665 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:55:18,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:55:18,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:55:18,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:55:18,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:55:18,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:55:18,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:55:18,667 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:55:18,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:55:18,668 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:55:18,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:55:18,668 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 23:55:18,668 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 23:55:18,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:55:18,669 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:55:18,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 23:55:18,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:55:18,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:55:18,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:55:18,670 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 23:55:18,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:55:18,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:55:18,672 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_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0539ac658883b1641a4574e23a99ec21471d0b6a [2020-11-29 23:55:18,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:55:18,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:55:18,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:55:18,949 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:55:18,950 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:55:18,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/../../sv-benchmarks/c/list-ext-properties/list-ext.i [2020-11-29 23:55:19,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/data/4ab3562e9/127887507b4e4cf28d54408ef27066ce/FLAGead4a586a [2020-11-29 23:55:19,550 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:55:19,551 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/sv-benchmarks/c/list-ext-properties/list-ext.i [2020-11-29 23:55:19,568 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/data/4ab3562e9/127887507b4e4cf28d54408ef27066ce/FLAGead4a586a [2020-11-29 23:55:19,867 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/data/4ab3562e9/127887507b4e4cf28d54408ef27066ce [2020-11-29 23:55:19,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:55:19,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:55:19,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:19,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:55:19,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:55:19,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a8554a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19, skipping insertion in model container [2020-11-29 23:55:19,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:55:19,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:55:20,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:20,269 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:55:20,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:20,366 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:55:20,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:20 WrapperNode [2020-11-29 23:55:20,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:20,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:20,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:55:20,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:55:20,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:20" (1/1) ... [2020-11-29 23:55:20,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:20" (1/1) ... [2020-11-29 23:55:20,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:20,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:55:20,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:55:20,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:55:20,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:20" (1/1) ... [2020-11-29 23:55:20,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:20" (1/1) ... [2020-11-29 23:55:20,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:20" (1/1) ... [2020-11-29 23:55:20,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:20" (1/1) ... [2020-11-29 23:55:20,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:20" (1/1) ... [2020-11-29 23:55:20,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:20" (1/1) ... [2020-11-29 23:55:20,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:20" (1/1) ... [2020-11-29 23:55:20,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:55:20,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:55:20,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:55:20,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:55:20,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2020-11-29 23:55:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-11-29 23:55:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-11-29 23:55:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:55:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:55:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 23:55:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 23:55:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:55:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 23:55:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:55:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:55:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:55:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:55:20,824 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-11-29 23:55:21,288 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:55:21,288 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-29 23:55:21,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:21 BoogieIcfgContainer [2020-11-29 23:55:21,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:55:21,294 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 23:55:21,295 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 23:55:21,305 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 23:55:21,305 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:21" (1/1) ... [2020-11-29 23:55:21,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:21,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:21,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 32 states and 46 transitions. [2020-11-29 23:55:21,356 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2020-11-29 23:55:21,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:55:21,358 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:21,534 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 23:55:21,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:21,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 31 states and 39 transitions. [2020-11-29 23:55:21,552 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2020-11-29 23:55:21,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 23:55:21,553 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:21,625 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:21,685 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:21,782 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:21,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:21,853 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-29 23:55:21,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 11:55:21 ImpRootNode [2020-11-29 23:55:21,894 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 23:55:21,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:55:21,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:55:21,894 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:55:21,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:21" (3/4) ... [2020-11-29 23:55:21,897 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 23:55:21,950 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b763e98c-4af6-43b7-8470-feb258ddbc24/bin/ukojak/witness.graphml [2020-11-29 23:55:21,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:55:21,952 INFO L168 Benchmark]: Toolchain (without parser) took 2079.70 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.9 MB in the beginning and 69.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:21,953 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 77.6 MB. Free memory was 37.9 MB in the beginning and 37.8 MB in the end (delta: 37.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:21,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.04 ms. Allocated memory is still 107.0 MB. Free memory was 75.6 MB in the beginning and 70.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:21,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.22 ms. Allocated memory is still 107.0 MB. Free memory was 70.5 MB in the beginning and 68.5 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:21,964 INFO L168 Benchmark]: Boogie Preprocessor took 38.47 ms. Allocated memory is still 107.0 MB. Free memory was 68.5 MB in the beginning and 66.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:21,965 INFO L168 Benchmark]: RCFGBuilder took 806.05 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 66.8 MB in the beginning and 95.1 MB in the end (delta: -28.3 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:21,965 INFO L168 Benchmark]: CodeCheck took 599.75 ms. Allocated memory is still 130.0 MB. Free memory was 95.1 MB in the beginning and 71.4 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:21,966 INFO L168 Benchmark]: Witness Printer took 56.22 ms. Allocated memory is still 130.0 MB. Free memory was 71.4 MB in the beginning and 69.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:21,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L532] int i = 0; [L533] int y = 0; [L534] List a = (List) malloc(sizeof(struct node)); [L535] COND FALSE !(a == 0) [L536] List t; [L537] List p = a; [L538] i < 10 && __VERIFIER_nondet_int() [L538] i < 10 && __VERIFIER_nondet_int() [L538] COND FALSE !(i < 10 && __VERIFIER_nondet_int()) [L546] y < 10 && __VERIFIER_nondet_int() [L546] y < 10 && __VERIFIER_nondet_int() [L546] COND FALSE !(y < 10 && __VERIFIER_nondet_int()) [L554] p->h = 3 [L555] p->n = 0 [L556] i = 0 [L557] y = 0 [L558] p = a [L559] EXPR p->h [L559] COND FALSE !(p->h == 1) [L563] EXPR p->h [L563] COND FALSE !(p->h == 2) [L567] EXPR p->h [L567] COND TRUE p->h != 3 || (i + y) < 20 [L12] COND FALSE !(0) [L12] __assert_fail ("0", "list-ext.c", 3, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 77.6 MB. Free memory was 37.9 MB in the beginning and 37.8 MB in the end (delta: 37.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 494.04 ms. Allocated memory is still 107.0 MB. Free memory was 75.6 MB in the beginning and 70.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.22 ms. Allocated memory is still 107.0 MB. Free memory was 70.5 MB in the beginning and 68.5 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.47 ms. Allocated memory is still 107.0 MB. Free memory was 68.5 MB in the beginning and 66.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 806.05 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 66.8 MB in the beginning and 95.1 MB in the end (delta: -28.3 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. * CodeCheck took 599.75 ms. Allocated memory is still 130.0 MB. Free memory was 95.1 MB in the beginning and 71.4 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 56.22 ms. Allocated memory is still 130.0 MB. Free memory was 71.4 MB in the beginning and 69.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...