./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext-properties/simple-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/simple-ext.i -s /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1c4f57eca82444dbac59d6fae1e4e6e28bb6c95 ................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-01 17:18:35,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 17:18:35,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 17:18:35,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 17:18:35,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 17:18:35,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 17:18:35,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 17:18:35,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 17:18:35,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 17:18:35,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 17:18:35,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 17:18:35,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 17:18:35,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 17:18:35,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 17:18:35,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 17:18:35,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 17:18:35,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 17:18:35,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 17:18:35,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 17:18:35,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 17:18:35,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 17:18:35,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 17:18:35,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 17:18:35,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 17:18:35,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 17:18:35,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 17:18:35,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 17:18:35,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 17:18:35,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 17:18:35,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 17:18:35,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 17:18:35,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 17:18:35,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 17:18:35,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 17:18:35,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 17:18:35,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 17:18:35,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 17:18:35,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 17:18:35,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 17:18:35,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 17:18:35,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 17:18:35,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2019-12-01 17:18:35,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 17:18:35,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 17:18:35,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 17:18:35,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 17:18:35,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 17:18:35,646 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 17:18:35,646 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-01 17:18:35,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 17:18:35,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 17:18:35,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 17:18:35,646 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-01 17:18:35,647 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-01 17:18:35,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 17:18:35,647 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 17:18:35,647 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 17:18:35,647 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 17:18:35,647 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 17:18:35,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 17:18:35,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 17:18:35,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 17:18:35,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 17:18:35,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 17:18:35,648 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 17:18:35,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 17:18:35,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/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 valid-memcleanup) ) 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 -> e1c4f57eca82444dbac59d6fae1e4e6e28bb6c95 [2019-12-01 17:18:35,746 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 17:18:35,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 17:18:35,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 17:18:35,760 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 17:18:35,761 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 17:18:35,761 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/bin/ukojak/../../sv-benchmarks/c/list-ext-properties/simple-ext.i [2019-12-01 17:18:35,799 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/bin/ukojak/data/50a0a69cf/604a00251a284fb7bdaf541395d0950b/FLAGd636c5a2c [2019-12-01 17:18:36,169 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 17:18:36,169 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/sv-benchmarks/c/list-ext-properties/simple-ext.i [2019-12-01 17:18:36,179 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/bin/ukojak/data/50a0a69cf/604a00251a284fb7bdaf541395d0950b/FLAGd636c5a2c [2019-12-01 17:18:36,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/bin/ukojak/data/50a0a69cf/604a00251a284fb7bdaf541395d0950b [2019-12-01 17:18:36,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 17:18:36,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 17:18:36,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 17:18:36,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 17:18:36,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 17:18:36,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:18:36" (1/1) ... [2019-12-01 17:18:36,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f065b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:36, skipping insertion in model container [2019-12-01 17:18:36,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:18:36" (1/1) ... [2019-12-01 17:18:36,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 17:18:36,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 17:18:36,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 17:18:36,816 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 17:18:36,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 17:18:36,886 INFO L208 MainTranslator]: Completed translation [2019-12-01 17:18:36,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:36 WrapperNode [2019-12-01 17:18:36,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 17:18:36,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 17:18:36,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 17:18:36,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 17:18:36,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:36" (1/1) ... [2019-12-01 17:18:36,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:36" (1/1) ... [2019-12-01 17:18:36,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 17:18:36,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 17:18:36,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 17:18:36,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 17:18:36,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:36" (1/1) ... [2019-12-01 17:18:36,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:36" (1/1) ... [2019-12-01 17:18:36,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:36" (1/1) ... [2019-12-01 17:18:36,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:36" (1/1) ... [2019-12-01 17:18:36,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:36" (1/1) ... [2019-12-01 17:18:36,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:36" (1/1) ... [2019-12-01 17:18:36,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:36" (1/1) ... [2019-12-01 17:18:36,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 17:18:36,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 17:18:36,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 17:18:36,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 17:18:36,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/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 [2019-12-01 17:18:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 17:18:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 17:18:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-01 17:18:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-01 17:18:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-01 17:18:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-01 17:18:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 17:18:36,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 17:18:37,237 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 17:18:37,238 INFO L287 CfgBuilder]: Removed 11 assume(true) statements. [2019-12-01 17:18:37,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:18:37 BoogieIcfgContainer [2019-12-01 17:18:37,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 17:18:37,239 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 17:18:37,239 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 17:18:37,246 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 17:18:37,246 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:18:37" (1/1) ... [2019-12-01 17:18:37,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 17:18:37,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:37,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 45 states and 51 transitions. [2019-12-01 17:18:37,278 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2019-12-01 17:18:37,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-01 17:18:37,279 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:37,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:37,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 45 states and 50 transitions. [2019-12-01 17:18:37,364 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2019-12-01 17:18:37,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 17:18:37,364 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:37,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:37,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:37,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 48 states and 55 transitions. [2019-12-01 17:18:37,432 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2019-12-01 17:18:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 17:18:37,433 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:37,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:37,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:37,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 51 states and 60 transitions. [2019-12-01 17:18:37,659 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2019-12-01 17:18:37,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 17:18:37,659 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:37,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:37,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:37,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 52 states and 61 transitions. [2019-12-01 17:18:37,681 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2019-12-01 17:18:37,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 17:18:37,681 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:37,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:37,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:37,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 53 states and 62 transitions. [2019-12-01 17:18:37,708 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2019-12-01 17:18:37,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 17:18:37,709 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:37,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:37,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:37,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 52 states and 61 transitions. [2019-12-01 17:18:37,732 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2019-12-01 17:18:37,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 17:18:37,732 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:37,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:37,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:37,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 53 states and 62 transitions. [2019-12-01 17:18:37,820 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2019-12-01 17:18:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 17:18:37,822 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 52 states and 61 transitions. [2019-12-01 17:18:37,860 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2019-12-01 17:18:37,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 17:18:37,860 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:37,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:37,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:37,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 54 states and 64 transitions. [2019-12-01 17:18:37,922 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2019-12-01 17:18:37,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 17:18:37,923 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:38,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 60 states and 76 transitions. [2019-12-01 17:18:38,134 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 76 transitions. [2019-12-01 17:18:38,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 17:18:38,135 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:38,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:38,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:38,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 66 states and 88 transitions. [2019-12-01 17:18:38,316 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2019-12-01 17:18:38,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 17:18:38,317 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:38,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:38,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:38,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 65 states and 87 transitions. [2019-12-01 17:18:38,353 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 87 transitions. [2019-12-01 17:18:38,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 17:18:38,354 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:38,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:38,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:38,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 64 states and 86 transitions. [2019-12-01 17:18:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2019-12-01 17:18:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 17:18:38,566 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 17:18:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 17:18:38,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 17:18:38,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 68 states and 93 transitions. [2019-12-01 17:18:38,987 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 93 transitions. [2019-12-01 17:18:38,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 17:18:38,988 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 17:18:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 17:18:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 17:18:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 17:18:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 17:18:39,044 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2019-12-01 17:18:39,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:18:39 ImpRootNode [2019-12-01 17:18:39,072 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 17:18:39,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 17:18:39,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 17:18:39,073 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 17:18:39,073 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:18:37" (3/4) ... [2019-12-01 17:18:39,076 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 17:18:39,116 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_571b4a56-3f9a-47a4-a2af-5f4da47ea01a/bin/ukojak/witness.graphml [2019-12-01 17:18:39,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 17:18:39,117 INFO L168 Benchmark]: Toolchain (without parser) took 2549.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 934.5 MB in the beginning and 949.1 MB in the end (delta: -14.6 MB). Peak memory consumption was 81.4 MB. Max. memory is 11.5 GB. [2019-12-01 17:18:39,118 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 17:18:39,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 934.5 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-01 17:18:39,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-01 17:18:39,119 INFO L168 Benchmark]: Boogie Preprocessor took 19.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 17:18:39,119 INFO L168 Benchmark]: RCFGBuilder took 301.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. [2019-12-01 17:18:39,120 INFO L168 Benchmark]: CodeCheck took 1833.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 956.0 MB in the end (delta: 76.8 MB). Peak memory consumption was 76.8 MB. Max. memory is 11.5 GB. [2019-12-01 17:18:39,120 INFO L168 Benchmark]: Witness Printer took 43.19 ms. Allocated memory is still 1.1 GB. Free memory was 956.0 MB in the beginning and 949.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-01 17:18:39,122 INFO L335 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, 45 locations, 21 error locations. Result: UNSAFE, OverallTime: 1.7s, OverallIterations: 15, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 131724 SDtfs, 59698 SDslu, 74740 SDs, 0 SdLazy, 173756 SolverSat, 64714 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 743 GetRequests, 670 SyntacticMatches, 17 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 987 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 2615 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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: 540]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] List a = (List) malloc(sizeof(struct node)); [L522] COND FALSE !(a == 0) [L523] List t; [L524] List p = a; [L525] int i = 0; [L526] i < 30 && __VERIFIER_nondet_int() [L526] i < 30 && __VERIFIER_nondet_int() [L526] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L534] p->h = i [L535] p->n = 0 [L536] p = a [L537] i = 0 [L538] COND TRUE p!=0 [L539] EXPR p->h [L539] COND TRUE p->h != 1 [L540] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 319.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 934.5 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 301.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. * CodeCheck took 1833.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 956.0 MB in the end (delta: 76.8 MB). Peak memory consumption was 76.8 MB. Max. memory is 11.5 GB. * Witness Printer took 43.19 ms. Allocated memory is still 1.1 GB. Free memory was 956.0 MB in the beginning and 949.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...