./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 534681b11e8e68e6058985d885b01f2cbfa43e5b ................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-10-26 20:04:48,279 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:04:48,280 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:04:48,292 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:04:48,293 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:04:48,294 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:04:48,295 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:04:48,305 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:04:48,307 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:04:48,308 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:04:48,310 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:04:48,311 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:04:48,311 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:04:48,312 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:04:48,313 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:04:48,314 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:04:48,315 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:04:48,316 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:04:48,318 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:04:48,319 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:04:48,322 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:04:48,323 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:04:48,325 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:04:48,325 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:04:48,326 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:04:48,327 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:04:48,344 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:04:48,345 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:04:48,345 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:04:48,346 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:04:48,347 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:04:48,348 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:04:48,348 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:04:48,348 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:04:48,349 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:04:48,350 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:04:48,350 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 20:04:48,376 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:04:48,383 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:04:48,384 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:04:48,384 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 20:04:48,385 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 20:04:48,385 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 20:04:48,385 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:04:48,386 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:04:48,386 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:04:48,386 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:04:48,386 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:04:48,386 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:04:48,387 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:04:48,387 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:04:48,387 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:04:48,387 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:04:48,389 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:04:48,389 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 20:04:48,389 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 20:04:48,389 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:04:48,389 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:04:48,390 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 20:04:48,390 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:04:48,390 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:04:48,390 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:04:48,390 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 20:04:48,390 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:04:48,391 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:04:48,391 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_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/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(__VERIFIER_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 -> 534681b11e8e68e6058985d885b01f2cbfa43e5b [2018-10-26 20:04:48,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:04:48,434 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:04:48,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:04:48,439 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:04:48,439 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:04:48,440 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/ukojak/../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-10-26 20:04:48,503 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/ukojak/data/636f1931c/87c695aaf5b14d61a9583457562e9eff/FLAG85627a623 [2018-10-26 20:04:48,939 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:04:48,943 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-10-26 20:04:48,959 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/ukojak/data/636f1931c/87c695aaf5b14d61a9583457562e9eff/FLAG85627a623 [2018-10-26 20:04:48,972 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/ukojak/data/636f1931c/87c695aaf5b14d61a9583457562e9eff [2018-10-26 20:04:48,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:04:48,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 20:04:48,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:04:48,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:04:48,982 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:04:48,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:04:48" (1/1) ... [2018-10-26 20:04:48,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31aca035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:04:48, skipping insertion in model container [2018-10-26 20:04:48,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:04:48" (1/1) ... [2018-10-26 20:04:48,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:04:49,039 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:04:49,354 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:04:49,364 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:04:49,426 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:04:49,471 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:04:49,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:04:49 WrapperNode [2018-10-26 20:04:49,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:04:49,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 20:04:49,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 20:04:49,473 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 20:04:49,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:04:49" (1/1) ... [2018-10-26 20:04:49,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:04:49" (1/1) ... [2018-10-26 20:04:49,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 20:04:49,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:04:49,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:04:49,609 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:04:49,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:04:49" (1/1) ... [2018-10-26 20:04:49,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:04:49" (1/1) ... [2018-10-26 20:04:49,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:04:49" (1/1) ... [2018-10-26 20:04:49,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:04:49" (1/1) ... [2018-10-26 20:04:49,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:04:49" (1/1) ... [2018-10-26 20:04:49,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:04:49" (1/1) ... [2018-10-26 20:04:49,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:04:49" (1/1) ... [2018-10-26 20:04:49,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:04:49,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:04:49,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:04:49,658 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:04:49,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:04:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/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 [2018-10-26 20:04:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 20:04:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 20:04:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-10-26 20:04:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-10-26 20:04:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-10-26 20:04:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-10-26 20:04:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-10-26 20:04:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-10-26 20:04:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 20:04:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:04:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:04:52,702 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:04:52,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:04:52 BoogieIcfgContainer [2018-10-26 20:04:52,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:04:52,703 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 20:04:52,703 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 20:04:52,713 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 20:04:52,714 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:04:52" (1/1) ... [2018-10-26 20:04:52,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:04:52,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:04:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 87 states and 155 transitions. [2018-10-26 20:04:52,765 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 155 transitions. [2018-10-26 20:04:52,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-26 20:04:52,767 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:04:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:04:52,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:04:52,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:04:52,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 86 states and 138 transitions. [2018-10-26 20:04:52,892 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 138 transitions. [2018-10-26 20:04:52,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-26 20:04:52,892 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:04:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:04:53,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:04:53,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:04:53,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 89 states and 141 transitions. [2018-10-26 20:04:53,255 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 141 transitions. [2018-10-26 20:04:53,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-26 20:04:53,255 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:04:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:04:53,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:04:53,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:04:53,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 88 states and 139 transitions. [2018-10-26 20:04:53,526 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 139 transitions. [2018-10-26 20:04:53,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 20:04:53,527 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:04:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:04:53,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 20:04:53,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:04:53,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 88 states and 136 transitions. [2018-10-26 20:04:53,577 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 136 transitions. [2018-10-26 20:04:53,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 20:04:53,579 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:04:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:04:53,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:04:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:04:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 92 states and 142 transitions. [2018-10-26 20:04:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 142 transitions. [2018-10-26 20:04:53,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 20:04:53,729 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:04:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:04:53,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:04:53,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:04:53,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 94 states and 142 transitions. [2018-10-26 20:04:53,813 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 142 transitions. [2018-10-26 20:04:53,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 20:04:53,814 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:04:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:04:53,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 20:04:54,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:04:54,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 97 states and 143 transitions. [2018-10-26 20:04:54,240 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 143 transitions. [2018-10-26 20:04:54,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 20:04:54,241 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:04:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:04:54,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 20:04:54,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:04:54,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 100 states and 144 transitions. [2018-10-26 20:04:54,444 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 144 transitions. [2018-10-26 20:04:54,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 20:04:54,444 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:04:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:04:54,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:04:55,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:04:55,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 110 states and 155 transitions. [2018-10-26 20:04:55,645 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 155 transitions. [2018-10-26 20:04:55,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 20:04:55,646 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:04:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:04:55,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:04:56,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:04:56,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 118 states and 162 transitions. [2018-10-26 20:04:56,430 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 162 transitions. [2018-10-26 20:04:56,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-26 20:04:56,431 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:04:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:04:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:04:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:04:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:04:56,581 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2018-10-26 20:04:56,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 08:04:56 ImpRootNode [2018-10-26 20:04:56,629 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 20:04:56,629 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:04:56,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:04:56,630 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:04:56,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:04:52" (3/4) ... [2018-10-26 20:04:56,634 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 20:04:56,706 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a39657a7-6a3c-4111-bc67-33b6d6fa0eb6/bin-2019/ukojak/witness.graphml [2018-10-26 20:04:56,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:04:56,707 INFO L168 Benchmark]: Toolchain (without parser) took 7730.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.6 MB). Free memory was 954.3 MB in the beginning and 1.2 GB in the end (delta: -216.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:04:56,708 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-10-26 20:04:56,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.39 ms. Allocated memory is still 1.0 GB. Free memory was 954.3 MB in the beginning and 932.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-10-26 20:04:56,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 136.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 932.8 MB in the beginning and 1.2 GB in the end (delta: -225.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-10-26 20:04:56,710 INFO L168 Benchmark]: Boogie Preprocessor took 48.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:04:56,710 INFO L168 Benchmark]: RCFGBuilder took 3044.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 123.9 MB). Peak memory consumption was 123.9 MB. Max. memory is 11.5 GB. [2018-10-26 20:04:56,711 INFO L168 Benchmark]: CodeCheck took 3926.41 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 43.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -141.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:04:56,714 INFO L168 Benchmark]: Witness Printer took 76.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2018-10-26 20:04:56,718 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 181 locations, 1 error locations. UNSAFE Result, 3.8s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16570 SDtfs, 4604 SDslu, 5596 SDs, 0 SdLazy, 7346 SolverSat, 3638 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1342 GetRequests, 1267 SyntacticMatches, 7 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1332 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 10892 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 554]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L627] struct list *data = ((void *)0); [L628] COND TRUE __VERIFIER_nondet_int() [L629] EXPR, FCALL malloc(sizeof *node) [L629] struct node *node = malloc(sizeof *node); [L630] COND FALSE !(!node) [L632] FCALL node->next = node [L633] CALL node->value = __VERIFIER_nondet_int() [L633] RET node->value = __VERIFIER_nondet_int() [L634] EXPR, FCALL malloc(sizeof *item) [L634] struct list *item = malloc(sizeof *item); [L635] COND FALSE !(!item) [L637] FCALL item->slist = node [L638] FCALL item->next = data [L639] data = item [L628] COND FALSE !(__VERIFIER_nondet_int()) [L641] COND FALSE !(!data) [L643] CALL inspect_before(data) [L604] COND FALSE !(!(shape)) [L604] COND FALSE !(0) [L605] FCALL shape->next [L605] COND FALSE !(shape->next) [L611] COND FALSE !(!(shape)) [L611] COND FALSE !(0) [L612] EXPR, FCALL shape->next [L612] COND FALSE !(!(shape->next == ((void *)0))) [L612] COND FALSE !(0) [L613] EXPR, FCALL shape->slist [L613] COND FALSE !(!(shape->slist)) [L613] COND FALSE !(0) [L614] EXPR, FCALL shape->slist [L614] EXPR, FCALL shape->slist->next [L614] COND TRUE !(shape->slist->next == ((void *)0)) [L614] CALL fail() [L554] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 494.39 ms. Allocated memory is still 1.0 GB. Free memory was 954.3 MB in the beginning and 932.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 136.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 932.8 MB in the beginning and 1.2 GB in the end (delta: -225.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 3044.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 123.9 MB). Peak memory consumption was 123.9 MB. Max. memory is 11.5 GB. * CodeCheck took 3926.41 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 43.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -141.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 76.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...