./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/for_infinite_loop_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/for_infinite_loop_2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/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 e1df1cc3b7becbc475eb123d613ca77d2c5c5b02 ............................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:36:52,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:36:52,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:36:52,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:36:52,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:36:52,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:36:52,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:36:52,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:36:52,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:36:52,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:36:52,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:36:52,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:36:52,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:36:52,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:36:52,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:36:52,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:36:52,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:36:52,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:36:52,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:36:52,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:36:52,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:36:52,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:36:52,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:36:52,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:36:52,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:36:52,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:36:52,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:36:52,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:36:52,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:36:52,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:36:52,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:36:52,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:36:52,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:36:52,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:36:52,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:36:52,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:36:52,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:36:52,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:36:52,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:36:52,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:36:52,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:36:52,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:36:52,307 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:36:52,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:36:52,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:36:52,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:36:52,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:36:52,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:36:52,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:36:52,319 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:36:52,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:36:52,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:36:52,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:36:52,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:36:52,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:36:52,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:36:52,321 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:36:52,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:36:52,321 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:36:52,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:36:52,322 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:36:52,322 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:36:52,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:36:52,322 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:36:52,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:36:52,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:36:52,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:36:52,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:36:52,324 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:36:52,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:36:52,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:36:52,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/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(__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 -> e1df1cc3b7becbc475eb123d613ca77d2c5c5b02 [2019-11-26 02:36:52,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:36:52,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:36:52,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:36:52,521 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:36:52,522 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:36:52,523 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/ukojak/../../sv-benchmarks/c/loops/for_infinite_loop_2.c [2019-11-26 02:36:52,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/ukojak/data/8444678b1/52defcfed0274af89228bb58d5f73fa8/FLAG19804ecf5 [2019-11-26 02:36:52,995 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:36:52,996 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/sv-benchmarks/c/loops/for_infinite_loop_2.c [2019-11-26 02:36:53,001 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/ukojak/data/8444678b1/52defcfed0274af89228bb58d5f73fa8/FLAG19804ecf5 [2019-11-26 02:36:53,424 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/ukojak/data/8444678b1/52defcfed0274af89228bb58d5f73fa8 [2019-11-26 02:36:53,427 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:36:53,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:36:53,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:53,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:36:53,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:36:53,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:53" (1/1) ... [2019-11-26 02:36:53,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b3a69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:53, skipping insertion in model container [2019-11-26 02:36:53,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:53" (1/1) ... [2019-11-26 02:36:53,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:36:53,457 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:36:53,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:53,640 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:36:53,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:53,728 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:36:53,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:53 WrapperNode [2019-11-26 02:36:53,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:53,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:53,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:36:53,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:36:53,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:53" (1/1) ... [2019-11-26 02:36:53,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:53" (1/1) ... [2019-11-26 02:36:53,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:53,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:36:53,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:36:53,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:36:53,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:53" (1/1) ... [2019-11-26 02:36:53,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:53" (1/1) ... [2019-11-26 02:36:53,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:53" (1/1) ... [2019-11-26 02:36:53,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:53" (1/1) ... [2019-11-26 02:36:53,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:53" (1/1) ... [2019-11-26 02:36:53,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:53" (1/1) ... [2019-11-26 02:36:53,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:53" (1/1) ... [2019-11-26 02:36:53,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:36:53,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:36:53,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:36:53,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:36:53,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:36:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:36:53,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:36:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-26 02:36:53,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-26 02:36:54,106 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:36:54,106 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:36:54,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:54 BoogieIcfgContainer [2019-11-26 02:36:54,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:36:54,108 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:36:54,108 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:36:54,122 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:36:54,123 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:54" (1/1) ... [2019-11-26 02:36:54,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:54,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:36:54,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2019-11-26 02:36:54,177 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-11-26 02:36:54,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:36:54,185 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:36:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:54,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:36:54,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:36:54,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 13 transitions. [2019-11-26 02:36:54,323 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-26 02:36:54,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:36:54,323 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:36:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:54,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:36:54,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:36:54,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 17 transitions. [2019-11-26 02:36:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-11-26 02:36:54,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-26 02:36:54,507 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:36:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:36:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:36:54,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 11 transitions. [2019-11-26 02:36:54,756 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-26 02:36:54,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:36:54,756 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2019-11-26 02:36:54,767 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-26 02:36:54,801 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2019-11-26 02:36:54,811 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:36:54,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:36:54 ImpRootNode [2019-11-26 02:36:54,811 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:36:54,812 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:36:54,812 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:36:54,812 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:36:54,813 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:54" (3/4) ... [2019-11-26 02:36:54,816 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:36:54,822 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2019-11-26 02:36:54,826 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-26 02:36:54,826 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:36:54,866 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6699a553-12df-4ca0-a980-94e05697aa0a/bin/ukojak/witness.graphml [2019-11-26 02:36:54,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:36:54,869 INFO L168 Benchmark]: Toolchain (without parser) took 1439.93 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 235.9 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -208.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:54,870 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:54,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.86 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 235.9 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -280.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:54,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.05 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:54,871 INFO L168 Benchmark]: Boogie Preprocessor took 19.75 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:54,872 INFO L168 Benchmark]: RCFGBuilder took 321.91 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:54,873 INFO L168 Benchmark]: CodeCheck took 704.06 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:54,873 INFO L168 Benchmark]: Witness Printer took 54.80 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:54,875 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 26 SDslu, 32 SDs, 0 SdLazy, 68 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 573 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 3/4 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: 6]: 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: 18]: Loop Invariant Derived loop invariant: x == 0 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 300.86 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 235.9 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -280.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.05 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.75 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 321.91 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * CodeCheck took 704.06 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. * Witness Printer took 54.80 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...