./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b1751fe95f9cf655681429038c1cde9e9c074e8 ................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:58:18,651 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:58:18,652 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:58:18,658 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:58:18,658 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:58:18,658 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:58:18,659 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:58:18,660 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:58:18,661 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:58:18,661 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:58:18,661 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:58:18,661 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:58:18,662 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:58:18,662 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:58:18,663 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:58:18,663 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:58:18,664 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:58:18,665 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:58:18,666 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:58:18,666 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:58:18,667 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:58:18,668 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:58:18,669 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:58:18,669 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:58:18,669 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:58:18,669 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:58:18,670 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:58:18,670 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:58:18,671 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:58:18,671 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:58:18,671 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:58:18,672 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:58:18,672 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:58:18,672 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:58:18,672 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:58:18,673 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:58:18,673 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-09 00:58:18,680 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:58:18,681 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:58:18,681 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 00:58:18,681 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 00:58:18,682 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:58:18,682 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:58:18,682 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 00:58:18,682 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:58:18,682 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:58:18,682 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:58:18,682 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 00:58:18,682 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 00:58:18,682 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 00:58:18,682 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:58:18,682 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:58:18,682 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 00:58:18,683 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 00:58:18,683 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 00:58:18,683 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:58:18,683 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:58:18,683 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 00:58:18,683 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:58:18,683 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:58:18,683 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 00:58:18,683 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:58:18,683 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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_db8672ab-4691-4487-83c7-1519b1fcd74d/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> 1b1751fe95f9cf655681429038c1cde9e9c074e8 [2018-12-09 00:58:18,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:58:18,707 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:58:18,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:58:18,710 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:58:18,710 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:58:18,710 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/bin-2019/ukojak/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c [2018-12-09 00:58:18,743 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/bin-2019/ukojak/data/1b8026104/14af8277d6f24dc5abdfd3340ee1764f/FLAG29f9d7dbb [2018-12-09 00:58:19,035 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:58:19,036 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c [2018-12-09 00:58:19,039 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/bin-2019/ukojak/data/1b8026104/14af8277d6f24dc5abdfd3340ee1764f/FLAG29f9d7dbb [2018-12-09 00:58:19,047 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/bin-2019/ukojak/data/1b8026104/14af8277d6f24dc5abdfd3340ee1764f [2018-12-09 00:58:19,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:58:19,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:58:19,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:58:19,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:58:19,052 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:58:19,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:58:19" (1/1) ... [2018-12-09 00:58:19,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba821c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:19, skipping insertion in model container [2018-12-09 00:58:19,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:58:19" (1/1) ... [2018-12-09 00:58:19,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:58:19,066 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:58:19,152 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:58:19,158 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:58:19,167 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:58:19,176 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:58:19,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:19 WrapperNode [2018-12-09 00:58:19,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:58:19,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:58:19,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:58:19,177 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:58:19,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:19" (1/1) ... [2018-12-09 00:58:19,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:19" (1/1) ... [2018-12-09 00:58:19,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:58:19,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:58:19,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:58:19,198 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:58:19,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:19" (1/1) ... [2018-12-09 00:58:19,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:19" (1/1) ... [2018-12-09 00:58:19,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:19" (1/1) ... [2018-12-09 00:58:19,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:19" (1/1) ... [2018-12-09 00:58:19,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:19" (1/1) ... [2018-12-09 00:58:19,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:19" (1/1) ... [2018-12-09 00:58:19,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:19" (1/1) ... [2018-12-09 00:58:19,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:58:19,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:58:19,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:58:19,241 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:58:19,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:58:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/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 [2018-12-09 00:58:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 00:58:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:58:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:58:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:58:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 00:58:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 00:58:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 00:58:19,442 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:58:19,443 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 00:58:19,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:58:19 BoogieIcfgContainer [2018-12-09 00:58:19,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:58:19,443 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 00:58:19,443 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 00:58:19,450 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 00:58:19,450 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:58:19" (1/1) ... [2018-12-09 00:58:19,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:58:19,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:19,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2018-12-09 00:58:19,480 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-12-09 00:58:19,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 00:58:19,482 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:19,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:19,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2018-12-09 00:58:19,589 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-12-09 00:58:19,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 00:58:19,589 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:19,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:19,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:19,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2018-12-09 00:58:19,696 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-12-09 00:58:19,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 00:58:19,696 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:19,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:19,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2018-12-09 00:58:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-12-09 00:58:19,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 00:58:19,960 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:19,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 00:58:20,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-12-09 00:58:20,004 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-12-09 00:58:20,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 00:58:20,006 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:20,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:20,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:20,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-12-09 00:58:20,161 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-09 00:58:20,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 00:58:20,162 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:20,202 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:20,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:20,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-09 00:58:20,369 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-09 00:58:20,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 00:58:20,369 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:20,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:20,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2018-12-09 00:58:20,568 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-09 00:58:20,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 00:58:20,568 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:20,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:20,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-12-09 00:58:20,806 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-12-09 00:58:20,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 00:58:20,806 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:21,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:21,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2018-12-09 00:58:21,066 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-12-09 00:58:21,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 00:58:21,066 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:21,112 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:21,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:21,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2018-12-09 00:58:21,322 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-12-09 00:58:21,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 00:58:21,322 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:21,367 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:21,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:21,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2018-12-09 00:58:21,573 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-12-09 00:58:21,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 00:58:21,573 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:21,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:21,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 28 states and 30 transitions. [2018-12-09 00:58:21,862 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-12-09 00:58:21,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 00:58:21,862 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:21,919 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:58:22,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:22,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 30 states and 31 transitions. [2018-12-09 00:58:22,101 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-12-09 00:58:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 00:58:22,101 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:58:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-12-09 00:58:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:58:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2018-12-09 00:58:24,409 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-12-09 00:58:24,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 00:58:24,409 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:58:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:58:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:58:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:58:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:58:24,508 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2018-12-09 00:58:24,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 12:58:24 ImpRootNode [2018-12-09 00:58:24,538 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 00:58:24,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:58:24,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:58:24,538 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:58:24,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:58:19" (3/4) ... [2018-12-09 00:58:24,541 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 00:58:24,594 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_db8672ab-4691-4487-83c7-1519b1fcd74d/bin-2019/ukojak/witness.graphml [2018-12-09 00:58:24,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:58:24,595 INFO L168 Benchmark]: Toolchain (without parser) took 5546.03 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 315.6 MB). Free memory was 961.4 MB in the beginning and 1.3 GB in the end (delta: -299.0 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:58:24,596 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:58:24,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 126.60 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:58:24,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.82 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:58:24,598 INFO L168 Benchmark]: Boogie Preprocessor took 42.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:58:24,599 INFO L168 Benchmark]: RCFGBuilder took 202.49 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:58:24,599 INFO L168 Benchmark]: CodeCheck took 5094.37 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 174.1 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -150.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2018-12-09 00:58:24,600 INFO L168 Benchmark]: Witness Printer took 56.44 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:58:24,603 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 1 procedures, 20 locations, 5 error locations. UNSAFE Result, 5.0s OverallTime, 15 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22528 SDtfs, 47146 SDslu, 16384 SDs, 0 SdLazy, 227488 SolverSat, 92202 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1287 GetRequests, 1067 SyntacticMatches, 76 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7285 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 11478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 5 PerfectInterpolantSequences, 103/388 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: 22]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L8] int *array = alloca(10 * sizeof(int)); [L10] int i = 0; [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND FALSE !(i < 10) [L14] return array; [L19] int *numbers = getNumbers(); [L21] int i = 0; [L21] COND TRUE i < 10 [L22] numbers + i * 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 126.60 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.82 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 202.49 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * CodeCheck took 5094.37 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 174.1 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -150.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * Witness Printer took 56.44 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...