./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_be75802c-666d-4d9b-be7d-44350e64faf8/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/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 a1ce2798c44b98d34c3d71501d399b3f4d974768 ............................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-01 16:29:02,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 16:29:02,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 16:29:02,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 16:29:02,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 16:29:02,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 16:29:02,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 16:29:02,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 16:29:02,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 16:29:02,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 16:29:02,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 16:29:02,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 16:29:02,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 16:29:02,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 16:29:02,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 16:29:02,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 16:29:02,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 16:29:02,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 16:29:02,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 16:29:02,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 16:29:02,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 16:29:02,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 16:29:02,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 16:29:02,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 16:29:02,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 16:29:02,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 16:29:02,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 16:29:02,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 16:29:02,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 16:29:02,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 16:29:02,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 16:29:02,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 16:29:02,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 16:29:02,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 16:29:02,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 16:29:02,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 16:29:02,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 16:29:02,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 16:29:02,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 16:29:02,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 16:29:02,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 16:29:02,733 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2019-12-01 16:29:02,746 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 16:29:02,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 16:29:02,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 16:29:02,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 16:29:02,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 16:29:02,747 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 16:29:02,748 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-01 16:29:02,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 16:29:02,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 16:29:02,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 16:29:02,748 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-01 16:29:02,748 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-01 16:29:02,749 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-01 16:29:02,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 16:29:02,749 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 16:29:02,749 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 16:29:02,749 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 16:29:02,750 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 16:29:02,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 16:29:02,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 16:29:02,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 16:29:02,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 16:29:02,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 16:29:02,751 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 16:29:02,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 16:29:02,751 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_be75802c-666d-4d9b-be7d-44350e64faf8/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 -> a1ce2798c44b98d34c3d71501d399b3f4d974768 [2019-12-01 16:29:02,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 16:29:02,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 16:29:02,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 16:29:02,864 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 16:29:02,864 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 16:29:02,864 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/bin/ukojak/../../sv-benchmarks/c/memsafety/test-0158-1.i [2019-12-01 16:29:02,902 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/bin/ukojak/data/c12aff393/87160137483e44d1bbc03d6f7b0ef1d4/FLAG1656d8154 [2019-12-01 16:29:03,373 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 16:29:03,374 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/sv-benchmarks/c/memsafety/test-0158-1.i [2019-12-01 16:29:03,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/bin/ukojak/data/c12aff393/87160137483e44d1bbc03d6f7b0ef1d4/FLAG1656d8154 [2019-12-01 16:29:03,885 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/bin/ukojak/data/c12aff393/87160137483e44d1bbc03d6f7b0ef1d4 [2019-12-01 16:29:03,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 16:29:03,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 16:29:03,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 16:29:03,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 16:29:03,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 16:29:03,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:29:03" (1/1) ... [2019-12-01 16:29:03,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe4aa41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:03, skipping insertion in model container [2019-12-01 16:29:03,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:29:03" (1/1) ... [2019-12-01 16:29:03,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 16:29:03,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 16:29:04,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 16:29:04,129 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 16:29:04,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 16:29:04,189 INFO L208 MainTranslator]: Completed translation [2019-12-01 16:29:04,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:04 WrapperNode [2019-12-01 16:29:04,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 16:29:04,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 16:29:04,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 16:29:04,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 16:29:04,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:04" (1/1) ... [2019-12-01 16:29:04,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:04" (1/1) ... [2019-12-01 16:29:04,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 16:29:04,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 16:29:04,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 16:29:04,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 16:29:04,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:04" (1/1) ... [2019-12-01 16:29:04,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:04" (1/1) ... [2019-12-01 16:29:04,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:04" (1/1) ... [2019-12-01 16:29:04,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:04" (1/1) ... [2019-12-01 16:29:04,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:04" (1/1) ... [2019-12-01 16:29:04,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:04" (1/1) ... [2019-12-01 16:29:04,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:04" (1/1) ... [2019-12-01 16:29:04,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 16:29:04,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 16:29:04,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 16:29:04,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 16:29:04,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/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 16:29:04,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-01 16:29:04,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-01 16:29:04,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-01 16:29:04,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-01 16:29:04,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-01 16:29:04,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 16:29:04,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 16:29:04,426 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 16:29:04,426 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-01 16:29:04,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:29:04 BoogieIcfgContainer [2019-12-01 16:29:04,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 16:29:04,428 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 16:29:04,428 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 16:29:04,434 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 16:29:04,434 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:29:04" (1/1) ... [2019-12-01 16:29:04,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 16:29:04,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 16:29:04,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 19 states and 18 transitions. [2019-12-01 16:29:04,463 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-12-01 16:29:04,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-01 16:29:04,464 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 16:29:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 16:29:04,565 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 16:29:04,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 16:29:04,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 18 states and 17 transitions. [2019-12-01 16:29:04,585 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-12-01 16:29:04,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-01 16:29:04,586 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 16:29:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 16:29:04,615 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 16:29:04,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 16:29:04,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 17 states and 16 transitions. [2019-12-01 16:29:04,683 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2019-12-01 16:29:04,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-01 16:29:04,683 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 16:29:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 16:29:04,697 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 16:29:04,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 16:29:04,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 16 states and 15 transitions. [2019-12-01 16:29:04,707 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-12-01 16:29:04,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-01 16:29:04,708 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 16:29:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 16:29:04,752 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 16:29:04,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 16:29:04,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 15 states and 14 transitions. [2019-12-01 16:29:04,832 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2019-12-01 16:29:04,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-01 16:29:04,832 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 16:29:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 16:29:04,847 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 16:29:04,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 16:29:04,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 14 states and 13 transitions. [2019-12-01 16:29:04,856 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2019-12-01 16:29:04,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-01 16:29:04,857 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 16:29:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 16:29:04,882 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 16:29:04,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 16:29:04,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 13 states and 12 transitions. [2019-12-01 16:29:04,956 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2019-12-01 16:29:04,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 16:29:04,956 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 16:29:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 16:29:05,028 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 16:29:05,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 16:29:05,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 12 states and 11 transitions. [2019-12-01 16:29:05,391 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-01 16:29:05,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 16:29:05,392 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 16:29:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 16:29:05,510 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 16:29:06,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 16:29:06,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 11 states and 10 transitions. [2019-12-01 16:29:06,142 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2019-12-01 16:29:06,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 16:29:06,142 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 16:29:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 16:29:06,288 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 16:29:08,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 16:29:08,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2019-12-01 16:29:08,358 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2019-12-01 16:29:08,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 16:29:08,359 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 16:29:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 16:29:08,995 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 16:29:09,155 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2019-12-01 16:29:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 16:29:13,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2019-12-01 16:29:13,880 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2019-12-01 16:29:13,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-01 16:29:13,881 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2019-12-01 16:29:13,900 INFO L765 CodeCheckObserver]: All specifications hold 10 specifications checked. All of them hold [2019-12-01 16:29:13,994 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2019-12-01 16:29:13,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 16:29:14,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 16:29:14,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:29:14 ImpRootNode [2019-12-01 16:29:14,005 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 16:29:14,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 16:29:14,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 16:29:14,005 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 16:29:14,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:29:04" (3/4) ... [2019-12-01 16:29:14,010 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-01 16:29:14,018 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-12-01 16:29:14,019 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-01 16:29:14,019 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-01 16:29:14,039 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2019-12-01 16:29:14,047 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_be75802c-666d-4d9b-be7d-44350e64faf8/bin/ukojak/witness.graphml [2019-12-01 16:29:14,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 16:29:14,049 INFO L168 Benchmark]: Toolchain (without parser) took 10160.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 943.4 MB in the beginning and 778.2 MB in the end (delta: 165.3 MB). Peak memory consumption was 332.5 MB. Max. memory is 11.5 GB. [2019-12-01 16:29:14,049 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 16:29:14,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.84 ms. Allocated memory is still 1.0 GB. Free memory was 938.1 MB in the beginning and 991.1 MB in the end (delta: -53.0 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-01 16:29:14,050 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.02 ms. Allocated memory is still 1.0 GB. Free memory was 991.1 MB in the beginning and 990.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-01 16:29:14,050 INFO L168 Benchmark]: Boogie Preprocessor took 14.91 ms. Allocated memory is still 1.0 GB. Free memory is still 990.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 16:29:14,051 INFO L168 Benchmark]: RCFGBuilder took 195.53 ms. Allocated memory is still 1.0 GB. Free memory was 990.0 MB in the beginning and 966.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-01 16:29:14,051 INFO L168 Benchmark]: CodeCheck took 9577.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 966.9 MB in the beginning and 789.5 MB in the end (delta: 177.4 MB). Peak memory consumption was 344.7 MB. Max. memory is 11.5 GB. [2019-12-01 16:29:14,052 INFO L168 Benchmark]: Witness Printer took 42.48 ms. Allocated memory is still 1.2 GB. Free memory was 789.5 MB in the beginning and 778.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2019-12-01 16:29:14,055 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, 19 locations, 10 error locations. Result: SAFE, OverallTime: 9.4s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 1096 SDslu, 0 SDs, 0 SdLazy, 8502 SolverSat, 3794 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 337 GetRequests, 213 SyntacticMatches, 6 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5249 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 2214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 512]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 512]: Loop Invariant [2019-12-01 16:29:14,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 16:29:14,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.84 ms. Allocated memory is still 1.0 GB. Free memory was 938.1 MB in the beginning and 991.1 MB in the end (delta: -53.0 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.02 ms. Allocated memory is still 1.0 GB. Free memory was 991.1 MB in the beginning and 990.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.91 ms. Allocated memory is still 1.0 GB. Free memory is still 990.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 195.53 ms. Allocated memory is still 1.0 GB. Free memory was 990.0 MB in the beginning and 966.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * CodeCheck took 9577.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 966.9 MB in the beginning and 789.5 MB in the end (delta: 177.4 MB). Peak memory consumption was 344.7 MB. Max. memory is 11.5 GB. * Witness Printer took 42.48 ms. Allocated memory is still 1.2 GB. Free memory was 789.5 MB in the beginning and 778.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...