./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/cmp-freed-ptr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/cmp-freed-ptr.i -s /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/bin/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 dc1c46fafaf84313f7931d3a97aa18589b3f536c .................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:12:13,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:12:13,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:12:13,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:12:13,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:12:13,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:12:13,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:12:13,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:12:13,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:12:13,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:12:13,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:12:13,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:12:13,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:12:13,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:12:13,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:12:13,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:12:13,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:12:13,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:12:13,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:12:13,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:12:13,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:12:13,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:12:13,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:12:13,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:12:13,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:12:13,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:12:13,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:12:13,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:12:13,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:12:13,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:12:13,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:12:13,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:12:13,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:12:13,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:12:13,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:12:13,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:12:13,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:12:13,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:12:13,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:12:13,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:12:13,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:12:13,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2019-10-22 10:12:13,344 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:12:13,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:12:13,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:12:13,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:12:13,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:12:13,346 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:12:13,346 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:12:13,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:12:13,346 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:12:13,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:12:13,346 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 10:12:13,347 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 10:12:13,347 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 10:12:13,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:12:13,347 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:12:13,347 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:12:13,347 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:12:13,348 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:12:13,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:12:13,348 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:12:13,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:12:13,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:12:13,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:12:13,349 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:12:13,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:12:13,349 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/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/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-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 -> dc1c46fafaf84313f7931d3a97aa18589b3f536c [2019-10-22 10:12:13,381 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:12:13,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:12:13,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:12:13,395 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:12:13,395 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:12:13,396 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/bin/ukojak/../../sv-benchmarks/c/memsafety/cmp-freed-ptr.i [2019-10-22 10:12:13,445 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/bin/ukojak/data/b6f98dba5/75bedef01bea473595e38880a08bfe5f/FLAGc2e1d1d4b [2019-10-22 10:12:13,870 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:12:13,871 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/sv-benchmarks/c/memsafety/cmp-freed-ptr.i [2019-10-22 10:12:13,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/bin/ukojak/data/b6f98dba5/75bedef01bea473595e38880a08bfe5f/FLAGc2e1d1d4b [2019-10-22 10:12:14,226 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/bin/ukojak/data/b6f98dba5/75bedef01bea473595e38880a08bfe5f [2019-10-22 10:12:14,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:12:14,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:12:14,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:12:14,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:12:14,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:12:14,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194e34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14, skipping insertion in model container [2019-10-22 10:12:14,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,245 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:12:14,291 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:12:14,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:12:14,622 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:12:14,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:12:14,728 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:12:14,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14 WrapperNode [2019-10-22 10:12:14,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:12:14,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:12:14,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:12:14,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:12:14,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:12:14,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:12:14,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:12:14,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:12:14,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:12:14,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:12:14,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:12:14,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:12:14,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/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 [2019-10-22 10:12:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 10:12:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 10:12:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:12:14,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:12:15,125 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:12:15,125 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 10:12:15,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:15 BoogieIcfgContainer [2019-10-22 10:12:15,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:12:15,127 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:12:15,127 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:12:15,150 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:12:15,150 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:15" (1/1) ... [2019-10-22 10:12:15,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:12:15,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2019-10-22 10:12:15,192 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-10-22 10:12:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-10-22 10:12:15,201 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:15,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-10-22 10:12:15,452 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-10-22 10:12:15,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 10:12:15,452 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:15,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-10-22 10:12:15,559 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-10-22 10:12:15,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:12:15,559 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:15,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-10-22 10:12:15,796 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-10-22 10:12:15,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:12:15,797 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:15,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-10-22 10:12:15,865 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-10-22 10:12:15,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:12:15,866 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:15,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-10-22 10:12:15,893 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-10-22 10:12:15,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:12:15,893 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:16,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:16,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-10-22 10:12:16,056 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-10-22 10:12:16,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:12:16,056 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:16,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:16,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:16,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-10-22 10:12:16,191 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-10-22 10:12:16,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:12:16,195 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:16,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:16,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:16,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-10-22 10:12:16,549 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-10-22 10:12:16,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:12:16,550 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:16,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:16,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:16,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2019-10-22 10:12:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-10-22 10:12:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:12:16,614 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:16,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:17,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:17,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-10-22 10:12:17,736 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-10-22 10:12:17,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:12:17,737 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:17,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:17,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:17,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-10-22 10:12:17,941 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-10-22 10:12:17,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:12:17,941 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:17,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:18,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:18,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-10-22 10:12:18,031 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-10-22 10:12:18,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:12:18,032 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:12:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:12:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:12:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:12:18,101 WARN L489 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2019-10-22 10:12:18,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:12:18 ImpRootNode [2019-10-22 10:12:18,126 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:12:18,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:12:18,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:12:18,127 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:12:18,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:15" (3/4) ... [2019-10-22 10:12:18,129 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 10:12:18,209 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_66379d8f-57c8-4442-b08f-e9ed6dd45581/bin/ukojak/witness.graphml [2019-10-22 10:12:18,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:12:18,211 INFO L168 Benchmark]: Toolchain (without parser) took 3980.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.7 MB in the beginning and 968.6 MB in the end (delta: -27.9 MB). Peak memory consumption was 112.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:18,212 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:12:18,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -185.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:18,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.33 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:18,214 INFO L168 Benchmark]: Boogie Preprocessor took 17.17 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:18,214 INFO L168 Benchmark]: RCFGBuilder took 340.82 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:18,215 INFO L168 Benchmark]: CodeCheck took 2999.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.5 MB in the end (delta: 127.8 MB). Peak memory consumption was 127.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:18,215 INFO L168 Benchmark]: Witness Printer took 83.18 ms. Allocated memory is still 1.2 GB. Free memory was 973.5 MB in the beginning and 968.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:18,219 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, 23 locations, 10 error locations. Result: UNSAFE, OverallTime: 2.9s, OverallIterations: 13, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 10942 SDslu, 1024 SDs, 0 SdLazy, 42958 SolverSat, 17784 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 557 GetRequests, 478 SyntacticMatches, 5 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1956 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 1689 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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: 524]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L515] struct T* x = ((void *)0); [L516] struct T* y = ((void *)0); [L517] y = malloc(sizeof(*y)) [L518] free(y) [L518] free(y) [L518] free(y) [L519] x = malloc(sizeof(*x)) [L520] COND TRUE x == y [L522] free(x) [L522] free(x) [L522] free(x) [L524] free(x) [L524] free(x) [L524] free(x) * 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 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 498.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -185.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.33 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.17 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 340.82 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * CodeCheck took 2999.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.5 MB in the end (delta: 127.8 MB). Peak memory consumption was 127.8 MB. Max. memory is 11.5 GB. * Witness Printer took 83.18 ms. Allocated memory is still 1.2 GB. Free memory was 973.5 MB in the beginning and 968.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...