./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9668b946af76644b8fa4631a2788ccda3020fa9d ................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:38:11,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:38:11,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:38:11,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:38:11,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:38:11,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:38:11,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:38:11,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:38:11,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:38:11,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:38:11,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:38:11,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:38:11,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:38:11,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:38:11,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:38:11,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:38:11,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:38:11,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:38:11,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:38:11,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:38:11,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:38:12,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:38:12,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:38:12,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:38:12,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:38:12,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:38:12,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:38:12,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:38:12,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:38:12,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:38:12,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:38:12,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:38:12,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:38:12,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:38:12,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:38:12,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:38:12,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:38:12,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:38:12,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:38:12,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:38:12,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:38:12,053 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:38:12,105 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:38:12,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:38:12,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:38:12,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:38:12,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:38:12,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:38:12,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:38:12,116 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:38:12,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:38:12,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:38:12,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:38:12,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:38:12,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:38:12,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:38:12,119 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:38:12,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:38:12,120 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:38:12,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:38:12,120 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:38:12,121 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:38:12,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:38:12,121 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:38:12,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:38:12,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:38:12,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:38:12,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:38:12,123 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:38:12,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:38:12,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:38:12,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9668b946af76644b8fa4631a2788ccda3020fa9d [2020-11-28 04:38:12,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:38:12,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:38:12,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:38:12,472 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:38:12,476 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:38:12,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c [2020-11-28 04:38:12,553 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak/data/d799e8d56/e772902338dc4719b8219c8ce098f209/FLAGc6ebba040 [2020-11-28 04:38:13,261 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:38:13,262 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c [2020-11-28 04:38:13,276 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak/data/d799e8d56/e772902338dc4719b8219c8ce098f209/FLAGc6ebba040 [2020-11-28 04:38:13,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak/data/d799e8d56/e772902338dc4719b8219c8ce098f209 [2020-11-28 04:38:13,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:38:13,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:38:13,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:13,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:38:13,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:38:13,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:13" (1/1) ... [2020-11-28 04:38:13,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3f7f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:13, skipping insertion in model container [2020-11-28 04:38:13,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:13" (1/1) ... [2020-11-28 04:38:13,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:38:13,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:38:13,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:13,926 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:38:13,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:13,963 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:38:13,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:13 WrapperNode [2020-11-28 04:38:13,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:13,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:13,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:38:13,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:38:13,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:13" (1/1) ... [2020-11-28 04:38:13,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:13" (1/1) ... [2020-11-28 04:38:14,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:14,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:38:14,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:38:14,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:38:14,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:13" (1/1) ... [2020-11-28 04:38:14,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:13" (1/1) ... [2020-11-28 04:38:14,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:13" (1/1) ... [2020-11-28 04:38:14,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:13" (1/1) ... [2020-11-28 04:38:14,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:13" (1/1) ... [2020-11-28 04:38:14,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:13" (1/1) ... [2020-11-28 04:38:14,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:13" (1/1) ... [2020-11-28 04:38:14,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:38:14,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:38:14,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:38:14,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:38:14,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/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 [2020-11-28 04:38:14,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:38:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:38:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:38:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:38:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:38:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:38:14,628 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:38:14,628 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:38:14,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:14 BoogieIcfgContainer [2020-11-28 04:38:14,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:38:14,632 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:38:14,632 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:38:14,644 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:38:14,644 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:14" (1/1) ... [2020-11-28 04:38:14,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:38:14,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:14,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-11-28 04:38:14,700 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-11-28 04:38:14,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:38:14,702 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:14,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:38:14,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:38:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:15,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:15,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2020-11-28 04:38:15,179 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2020-11-28 04:38:15,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:38:15,183 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:15,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 04:38:15,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:38:15,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:15,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:15,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2020-11-28 04:38:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2020-11-28 04:38:15,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:38:15,518 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:15,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:38:15,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:38:15,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:15,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:15,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 25 states and 40 transitions. [2020-11-28 04:38:15,890 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. [2020-11-28 04:38:15,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 04:38:15,892 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:15,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:38:15,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:38:16,181 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 04:38:16,257 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:38:17,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:17,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2020-11-28 04:38:17,089 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2020-11-28 04:38:17,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:38:17,090 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:17,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-28 04:38:17,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:38:17,623 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 04:38:17,640 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:38:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:18,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 36 states and 67 transitions. [2020-11-28 04:38:18,620 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 67 transitions. [2020-11-28 04:38:18,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 04:38:18,621 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:18,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 04:38:18,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:38:18,784 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:38:19,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:19,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 23 states and 29 transitions. [2020-11-28 04:38:19,297 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2020-11-28 04:38:19,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 04:38:19,298 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:19,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:38:19,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:38:19,369 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 04:38:19,382 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-28 04:38:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:20,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 16 states and 20 transitions. [2020-11-28 04:38:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-11-28 04:38:20,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:38:20,263 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-11-28 04:38:20,270 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:38:20,381 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:38:20,385 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:38:20,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:38:20 ImpRootNode [2020-11-28 04:38:20,386 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:38:20,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:38:20,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:38:20,387 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:38:20,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:14" (3/4) ... [2020-11-28 04:38:20,390 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:38:20,396 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:38:20,402 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-28 04:38:20,402 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:38:20,403 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:38:20,403 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:38:20,470 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5c6e1a3d-d36f-4fa5-a020-96424b418bed/bin/ukojak/witness.graphml [2020-11-28 04:38:20,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:38:20,475 INFO L168 Benchmark]: Toolchain (without parser) took 6856.22 ms. Allocated memory was 111.1 MB in the beginning and 172.0 MB in the end (delta: 60.8 MB). Free memory was 80.0 MB in the beginning and 147.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 88.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:20,476 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 79.7 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:20,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.61 ms. Allocated memory is still 111.1 MB. Free memory was 80.0 MB in the beginning and 87.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:20,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.79 ms. Allocated memory is still 111.1 MB. Free memory was 87.2 MB in the beginning and 85.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:20,477 INFO L168 Benchmark]: Boogie Preprocessor took 23.08 ms. Allocated memory is still 111.1 MB. Free memory was 85.9 MB in the beginning and 84.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:20,478 INFO L168 Benchmark]: RCFGBuilder took 605.54 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 68.7 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:20,478 INFO L168 Benchmark]: CodeCheck took 5754.58 ms. Allocated memory was 111.1 MB in the beginning and 172.0 MB in the end (delta: 60.8 MB). Free memory was 68.7 MB in the beginning and 56.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 73.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:20,479 INFO L168 Benchmark]: Witness Printer took 84.06 ms. Allocated memory is still 172.0 MB. Free memory was 56.6 MB in the beginning and 147.4 MB in the end (delta: -90.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:20,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 928 SDtfs, 572 SDslu, 624 SDs, 0 SdLazy, 3908 SolverSat, 1260 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1053 GetRequests, 964 SyntacticMatches, 19 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1794 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 7926 SizeOfPredicates, 22 NumberOfNonLiveVariables, 521 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 47/61 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: 3]: 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: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 79.7 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 343.61 ms. Allocated memory is still 111.1 MB. Free memory was 80.0 MB in the beginning and 87.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.79 ms. Allocated memory is still 111.1 MB. Free memory was 87.2 MB in the beginning and 85.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.08 ms. Allocated memory is still 111.1 MB. Free memory was 85.9 MB in the beginning and 84.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 605.54 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 68.7 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 5754.58 ms. Allocated memory was 111.1 MB in the beginning and 172.0 MB in the end (delta: 60.8 MB). Free memory was 68.7 MB in the beginning and 56.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 73.7 MB. Max. memory is 16.1 GB. * Witness Printer took 84.06 ms. Allocated memory is still 172.0 MB. Free memory was 56.6 MB in the beginning and 147.4 MB in the end (delta: -90.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...