./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f33d015f37d4475f0ca85a8ea6311ffc3e89abb ................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:53:46,932 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:53:46,933 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:53:46,942 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:53:46,942 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:53:46,943 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:53:46,943 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:53:46,944 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:53:46,946 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:53:46,946 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:53:46,947 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:53:46,947 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:53:46,948 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:53:46,948 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:53:46,949 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:53:46,950 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:53:46,950 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:53:46,951 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:53:46,953 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:53:46,954 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:53:46,954 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:53:46,955 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:53:46,957 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:53:46,957 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:53:46,957 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:53:46,958 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:53:46,959 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:53:46,959 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:53:46,960 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:53:46,960 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:53:46,961 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:53:46,961 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:53:46,961 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:53:46,961 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:53:46,962 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:53:46,962 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:53:46,963 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 14:53:46,973 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:53:46,973 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:53:46,973 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:53:46,974 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 14:53:46,974 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:53:46,974 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:53:46,974 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:53:46,975 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:53:46,975 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:53:46,975 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:53:46,975 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:53:46,975 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:53:46,975 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:53:46,975 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:53:46,975 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:53:46,976 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:53:46,976 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:53:46,976 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:53:46,976 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 14:53:46,976 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 14:53:46,976 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:53:46,976 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:53:46,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 14:53:46,977 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:53:46,977 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:53:46,977 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:53:46,977 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 14:53:46,977 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:53:46,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:53:46,977 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f33d015f37d4475f0ca85a8ea6311ffc3e89abb [2018-11-23 14:53:47,000 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:53:47,010 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:53:47,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:53:47,014 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:53:47,014 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:53:47,015 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak/../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-23 14:53:47,060 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak/data/62d5ead36/62dbd7a49ac148bfb8687afb675a6ab5/FLAGb0cd1e2c1 [2018-11-23 14:53:47,397 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:53:47,397 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-23 14:53:47,402 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak/data/62d5ead36/62dbd7a49ac148bfb8687afb675a6ab5/FLAGb0cd1e2c1 [2018-11-23 14:53:47,822 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak/data/62d5ead36/62dbd7a49ac148bfb8687afb675a6ab5 [2018-11-23 14:53:47,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:53:47,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:53:47,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:53:47,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:53:47,828 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:53:47,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:47" (1/1) ... [2018-11-23 14:53:47,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@130bf827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:47, skipping insertion in model container [2018-11-23 14:53:47,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:47" (1/1) ... [2018-11-23 14:53:47,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:53:47,850 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:53:47,955 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:53:47,957 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:53:47,970 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:53:47,978 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:53:47,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:47 WrapperNode [2018-11-23 14:53:47,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:53:47,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:53:47,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:53:47,979 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:53:47,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:47" (1/1) ... [2018-11-23 14:53:47,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:47" (1/1) ... [2018-11-23 14:53:48,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:53:48,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:53:48,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:53:48,000 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:53:48,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:47" (1/1) ... [2018-11-23 14:53:48,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:47" (1/1) ... [2018-11-23 14:53:48,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:47" (1/1) ... [2018-11-23 14:53:48,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:47" (1/1) ... [2018-11-23 14:53:48,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:47" (1/1) ... [2018-11-23 14:53:48,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:47" (1/1) ... [2018-11-23 14:53:48,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:47" (1/1) ... [2018-11-23 14:53:48,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:53:48,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:53:48,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:53:48,013 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:53:48,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 14:53:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:53:48,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:53:48,277 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:53:48,277 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 14:53:48,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:48 BoogieIcfgContainer [2018-11-23 14:53:48,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:53:48,278 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 14:53:48,278 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 14:53:48,288 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 14:53:48,288 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:48" (1/1) ... [2018-11-23 14:53:48,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:53:48,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:48,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 18 states and 29 transitions. [2018-11-23 14:53:48,318 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 29 transitions. [2018-11-23 14:53:48,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-23 14:53:48,320 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:48,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:48,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:48,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2018-11-23 14:53:48,498 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2018-11-23 14:53:48,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 14:53:48,499 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:48,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:48,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2018-11-23 14:53:48,668 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2018-11-23 14:53:48,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 14:53:48,668 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:48,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:48,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2018-11-23 14:53:48,754 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2018-11-23 14:53:48,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 14:53:48,754 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:48,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:48,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:48,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2018-11-23 14:53:48,999 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2018-11-23 14:53:48,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:53:48,999 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:49,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:49,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2018-11-23 14:53:49,094 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2018-11-23 14:53:49,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:53:49,094 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:49,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:49,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:49,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2018-11-23 14:53:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2018-11-23 14:53:49,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:53:49,437 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:49,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:49,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:49,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2018-11-23 14:53:49,519 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2018-11-23 14:53:49,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:53:49,519 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:49,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2018-11-23 14:53:49,618 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2018-11-23 14:53:49,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:53:49,618 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:49,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:49,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:49,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2018-11-23 14:53:49,700 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2018-11-23 14:53:49,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:53:49,701 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:49,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:50,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:50,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2018-11-23 14:53:50,302 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2018-11-23 14:53:50,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:53:50,303 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:50,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:50,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2018-11-23 14:53:50,412 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2018-11-23 14:53:50,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 14:53:50,412 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:50,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:50,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:50,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2018-11-23 14:53:50,533 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2018-11-23 14:53:50,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 14:53:50,533 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:50,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:50,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:50,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2018-11-23 14:53:50,637 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2018-11-23 14:53:50,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 14:53:50,638 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:50,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:50,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2018-11-23 14:53:50,734 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2018-11-23 14:53:50,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 14:53:50,734 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:53:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:53:50,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:53:50,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:53:50,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2018-11-23 14:53:50,854 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2018-11-23 14:53:50,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:53:50,855 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2018-11-23 14:53:50,861 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-23 14:53:50,918 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 14:53:50,920 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 14:53:50,920 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 14:53:50,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 02:53:50 ImpRootNode [2018-11-23 14:53:50,921 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 14:53:50,921 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:53:50,921 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:53:50,921 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:53:50,922 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:48" (3/4) ... [2018-11-23 14:53:50,924 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:53:50,930 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-23 14:53:50,931 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 14:53:50,931 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 14:53:50,968 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_06cf3852-be87-459f-bfa7-9b331030cbfe/bin-2019/ukojak/witness.graphml [2018-11-23 14:53:50,968 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:53:50,969 INFO L168 Benchmark]: Toolchain (without parser) took 3143.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.9 MB). Free memory was 953.8 MB in the beginning and 858.7 MB in the end (delta: 95.0 MB). Peak memory consumption was 297.9 MB. Max. memory is 11.5 GB. [2018-11-23 14:53:50,970 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:53:50,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.66 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:53:50,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.97 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:53:50,971 INFO L168 Benchmark]: Boogie Preprocessor took 12.45 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:53:50,971 INFO L168 Benchmark]: RCFGBuilder took 264.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:53:50,971 INFO L168 Benchmark]: CodeCheck took 2642.70 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 863.8 MB in the end (delta: 252.5 MB). Peak memory consumption was 312.2 MB. Max. memory is 11.5 GB. [2018-11-23 14:53:50,971 INFO L168 Benchmark]: Witness Printer took 47.19 ms. Allocated memory is still 1.2 GB. Free memory was 863.8 MB in the beginning and 858.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:53:50,973 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 24 locations, 1 error locations. SAFE Result, 2.5s OverallTime, 16 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 180224 SDtfs, 116700 SDslu, 0 SDs, 0 SdLazy, 572728 SolverSat, 212700 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1247 GetRequests, 1147 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3906 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 4775 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 91]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 152.66 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.97 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.45 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 264.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * CodeCheck took 2642.70 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 863.8 MB in the end (delta: 252.5 MB). Peak memory consumption was 312.2 MB. Max. memory is 11.5 GB. * Witness Printer took 47.19 ms. Allocated memory is still 1.2 GB. Free memory was 863.8 MB in the beginning and 858.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...