./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/const.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invariants/const.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/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 c800eedf7ac08f8178c44ada6802012e187e4e2c ......................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 18:27:18,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:27:18,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:27:19,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:27:19,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:27:19,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:27:19,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:27:19,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:27:19,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:27:19,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:27:19,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:27:19,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:27:19,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:27:19,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:27:19,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:27:19,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:27:19,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:27:19,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:27:19,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:27:19,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:27:19,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:27:19,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:27:19,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:27:19,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:27:19,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:27:19,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:27:19,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:27:19,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:27:19,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:27:19,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:27:19,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:27:19,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:27:19,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:27:19,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:27:19,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:27:19,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:27:19,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:27:19,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:27:19,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:27:19,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:27:19,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:27:19,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:27:19,189 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:27:19,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:27:19,191 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:27:19,191 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:27:19,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:27:19,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:27:19,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:27:19,194 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:27:19,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:27:19,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:27:19,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:27:19,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:27:19,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:27:19,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:27:19,196 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:27:19,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:27:19,197 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:27:19,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:27:19,198 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:27:19,198 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:27:19,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:27:19,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:27:19,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:27:19,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:27:19,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:27:19,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:27:19,201 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:27:19,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:27:19,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:27:19,202 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_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c800eedf7ac08f8178c44ada6802012e187e4e2c [2020-12-01 18:27:19,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:27:19,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:27:19,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:27:19,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:27:19,590 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:27:19,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/bin/ukojak/../../sv-benchmarks/c/loop-invariants/const.c [2020-12-01 18:27:19,697 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/bin/ukojak/data/ad2054e0f/dadeb12ba363410c8583b75f4cae1a6f/FLAG345bd3a71 [2020-12-01 18:27:20,430 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:27:20,431 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/sv-benchmarks/c/loop-invariants/const.c [2020-12-01 18:27:20,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/bin/ukojak/data/ad2054e0f/dadeb12ba363410c8583b75f4cae1a6f/FLAG345bd3a71 [2020-12-01 18:27:20,768 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/bin/ukojak/data/ad2054e0f/dadeb12ba363410c8583b75f4cae1a6f [2020-12-01 18:27:20,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:27:20,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:27:20,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:27:20,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:27:20,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:27:20,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:27:20" (1/1) ... [2020-12-01 18:27:20,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447fd5ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:20, skipping insertion in model container [2020-12-01 18:27:20,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:27:20" (1/1) ... [2020-12-01 18:27:20,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:27:20,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:27:21,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:27:21,209 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:27:21,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:27:21,252 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:27:21,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:21 WrapperNode [2020-12-01 18:27:21,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:27:21,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:27:21,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:27:21,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:27:21,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:21" (1/1) ... [2020-12-01 18:27:21,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:21" (1/1) ... [2020-12-01 18:27:21,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:27:21,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:27:21,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:27:21,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:27:21,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:21" (1/1) ... [2020-12-01 18:27:21,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:21" (1/1) ... [2020-12-01 18:27:21,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:21" (1/1) ... [2020-12-01 18:27:21,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:21" (1/1) ... [2020-12-01 18:27:21,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:21" (1/1) ... [2020-12-01 18:27:21,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:21" (1/1) ... [2020-12-01 18:27:21,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:21" (1/1) ... [2020-12-01 18:27:21,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:27:21,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:27:21,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:27:21,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:27:21,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/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 [2020-12-01 18:27:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:27:21,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:27:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:27:21,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:27:21,954 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:27:21,954 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 18:27:21,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:27:21 BoogieIcfgContainer [2020-12-01 18:27:21,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:27:21,959 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:27:21,959 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:27:21,974 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:27:21,974 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:27:21" (1/1) ... [2020-12-01 18:27:22,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:27:22,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:27:22,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2020-12-01 18:27:22,089 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2020-12-01 18:27:22,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:27:22,092 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:27:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:27:22,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:27:22,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:27:22,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 10 states and 15 transitions. [2020-12-01 18:27:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 15 transitions. [2020-12-01 18:27:22,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:27:22,666 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:27:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:27:22,874 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 18:27:23,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:27:23,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 5 states and 6 transitions. [2020-12-01 18:27:23,040 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 6 transitions. [2020-12-01 18:27:23,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:27:23,042 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2020-12-01 18:27:23,051 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 18:27:23,086 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 18:27:23,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:27:23 ImpRootNode [2020-12-01 18:27:23,100 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:27:23,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:27:23,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:27:23,106 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:27:23,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:27:21" (3/4) ... [2020-12-01 18:27:23,111 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:27:23,138 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-01 18:27:23,139 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 18:27:23,140 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:27:23,140 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 18:27:23,186 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b7e9f1e1-2c2c-47f0-b542-5a565d00e2b2/bin/ukojak/witness.graphml [2020-12-01 18:27:23,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:27:23,189 INFO L168 Benchmark]: Toolchain (without parser) took 2415.02 ms. Allocated memory was 92.3 MB in the beginning and 132.1 MB in the end (delta: 39.8 MB). Free memory was 65.2 MB in the beginning and 61.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:27:23,190 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 92.3 MB. Free memory was 52.0 MB in the beginning and 51.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:27:23,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.81 ms. Allocated memory was 92.3 MB in the beginning and 132.1 MB in the end (delta: 39.8 MB). Free memory was 64.8 MB in the beginning and 110.4 MB in the end (delta: -45.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:27:23,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.36 ms. Allocated memory is still 132.1 MB. Free memory was 110.4 MB in the beginning and 108.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:27:23,192 INFO L168 Benchmark]: Boogie Preprocessor took 48.37 ms. Allocated memory is still 132.1 MB. Free memory was 108.9 MB in the beginning and 107.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:27:23,193 INFO L168 Benchmark]: RCFGBuilder took 595.45 ms. Allocated memory is still 132.1 MB. Free memory was 107.5 MB in the beginning and 92.9 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 18:27:23,194 INFO L168 Benchmark]: CodeCheck took 1141.21 ms. Allocated memory is still 132.1 MB. Free memory was 92.9 MB in the beginning and 64.2 MB in the end (delta: 28.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:27:23,194 INFO L168 Benchmark]: Witness Printer took 81.99 ms. Allocated memory is still 132.1 MB. Free memory was 64.2 MB in the beginning and 61.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:27:23,199 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 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 12 SDslu, 12 SDs, 0 SdLazy, 36 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/3 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: 13]: Loop Invariant Derived loop invariant: s == 0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 92.3 MB. Free memory was 52.0 MB in the beginning and 51.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 473.81 ms. Allocated memory was 92.3 MB in the beginning and 132.1 MB in the end (delta: 39.8 MB). Free memory was 64.8 MB in the beginning and 110.4 MB in the end (delta: -45.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.36 ms. Allocated memory is still 132.1 MB. Free memory was 110.4 MB in the beginning and 108.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.37 ms. Allocated memory is still 132.1 MB. Free memory was 108.9 MB in the beginning and 107.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 595.45 ms. Allocated memory is still 132.1 MB. Free memory was 107.5 MB in the beginning and 92.9 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 1141.21 ms. Allocated memory is still 132.1 MB. Free memory was 92.9 MB in the beginning and 64.2 MB in the end (delta: 28.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Witness Printer took 81.99 ms. Allocated memory is still 132.1 MB. Free memory was 64.2 MB in the beginning and 61.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...