./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/nest-if3.i --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_e0057df4-3361-47f6-85a8-440d467f24b9/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/nest-if3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/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 a6ea3567a534d80cc2c4496700797b4364bacf8f .................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:55:24,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:55:24,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:55:24,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:55:24,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:55:24,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:55:24,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:55:24,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:55:24,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:55:24,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:55:24,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:55:24,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:55:24,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:55:24,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:55:24,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:55:24,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:55:24,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:55:24,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:55:24,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:55:24,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:55:24,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:55:24,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:55:24,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:55:24,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:55:24,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:55:24,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:55:24,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:55:24,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:55:24,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:55:24,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:55:24,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:55:24,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:55:24,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:55:24,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:55:24,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:55:24,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:55:24,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:55:24,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:55:24,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:55:24,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:55:24,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:55:24,593 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 23:55:24,639 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:55:24,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:55:24,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 23:55:24,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 23:55:24,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:55:24,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:55:24,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:55:24,643 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:55:24,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:55:24,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:55:24,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:55:24,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:55:24,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:55:24,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:55:24,645 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:55:24,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:55:24,646 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:55:24,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:55:24,646 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 23:55:24,647 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 23:55:24,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:55:24,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:55:24,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 23:55:24,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:55:24,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:55:24,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:55:24,648 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 23:55:24,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:55:24,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:55:24,649 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_e0057df4-3361-47f6-85a8-440d467f24b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6ea3567a534d80cc2c4496700797b4364bacf8f [2020-11-29 23:55:24,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:55:24,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:55:24,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:55:24,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:55:24,952 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:55:24,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/bin/ukojak/../../sv-benchmarks/c/loop-invgen/nest-if3.i [2020-11-29 23:55:25,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/bin/ukojak/data/9d6cf0637/0db0b776c9ad4f2fb1e9e514835ceb1e/FLAG32f15bf5d [2020-11-29 23:55:25,504 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:55:25,505 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/sv-benchmarks/c/loop-invgen/nest-if3.i [2020-11-29 23:55:25,511 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/bin/ukojak/data/9d6cf0637/0db0b776c9ad4f2fb1e9e514835ceb1e/FLAG32f15bf5d [2020-11-29 23:55:25,877 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/bin/ukojak/data/9d6cf0637/0db0b776c9ad4f2fb1e9e514835ceb1e [2020-11-29 23:55:25,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:55:25,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:55:25,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:25,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:55:25,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:55:25,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:25" (1/1) ... [2020-11-29 23:55:25,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38509592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:25, skipping insertion in model container [2020-11-29 23:55:25,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:25" (1/1) ... [2020-11-29 23:55:25,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:55:25,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:55:26,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:26,103 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:55:26,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:26,147 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:55:26,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26 WrapperNode [2020-11-29 23:55:26,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:26,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:26,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:55:26,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:55:26,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:26,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:55:26,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:55:26,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:55:26,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:55:26,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:55:26,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:55:26,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:55:26,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/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 [2020-11-29 23:55:26,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:55:26,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:55:26,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:55:26,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:55:26,728 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:55:26,728 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-29 23:55:26,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:26 BoogieIcfgContainer [2020-11-29 23:55:26,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:55:26,731 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 23:55:26,731 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 23:55:26,742 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 23:55:26,743 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:26,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:26,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2020-11-29 23:55:26,789 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2020-11-29 23:55:26,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 23:55:26,791 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:26,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:27,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:27,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2020-11-29 23:55:27,162 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2020-11-29 23:55:27,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:55:27,162 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:27,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:27,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:27,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 19 states and 34 transitions. [2020-11-29 23:55:27,906 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 34 transitions. [2020-11-29 23:55:27,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:55:27,908 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:28,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:28,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 19 states and 33 transitions. [2020-11-29 23:55:28,202 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 33 transitions. [2020-11-29 23:55:28,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 23:55:28,202 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:28,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:28,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:28,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 21 states and 42 transitions. [2020-11-29 23:55:28,897 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 42 transitions. [2020-11-29 23:55:28,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 23:55:28,898 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:29,069 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:29,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:29,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 25 states and 53 transitions. [2020-11-29 23:55:29,810 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 53 transitions. [2020-11-29 23:55:29,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 23:55:29,811 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:30,014 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:55:30,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:30,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 27 states and 58 transitions. [2020-11-29 23:55:30,553 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 58 transitions. [2020-11-29 23:55:30,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 23:55:30,554 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:30,741 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 23:55:31,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:31,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 29 states and 63 transitions. [2020-11-29 23:55:31,343 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 63 transitions. [2020-11-29 23:55:31,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 23:55:31,344 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:31,397 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 23:55:32,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 32 states and 74 transitions. [2020-11-29 23:55:32,490 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 74 transitions. [2020-11-29 23:55:32,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 23:55:32,491 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:32,696 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 23:55:32,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:32,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 33 states and 78 transitions. [2020-11-29 23:55:32,948 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 78 transitions. [2020-11-29 23:55:32,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 23:55:32,949 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:33,133 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:34,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:34,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 38 states and 91 transitions. [2020-11-29 23:55:34,778 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 91 transitions. [2020-11-29 23:55:34,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 23:55:34,779 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:55:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-29 23:55:35,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:55:35,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 28 states and 64 transitions. [2020-11-29 23:55:35,106 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 64 transitions. [2020-11-29 23:55:35,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:55:35,107 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2020-11-29 23:55:35,113 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-29 23:55:35,370 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 22 [2020-11-29 23:55:35,371 INFO L569 CodeCheckObserver]: Invariant with dag size 13 [2020-11-29 23:55:35,383 INFO L569 CodeCheckObserver]: Invariant with dag size 10 [2020-11-29 23:55:35,384 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 23:55:35,384 INFO L569 CodeCheckObserver]: Invariant with dag size 22 [2020-11-29 23:55:35,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 11:55:35 ImpRootNode [2020-11-29 23:55:35,387 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 23:55:35,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:55:35,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:55:35,388 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:55:35,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:26" (3/4) ... [2020-11-29 23:55:35,392 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:55:35,402 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-29 23:55:35,402 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-29 23:55:35,402 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:55:35,403 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:55:35,462 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e0057df4-3361-47f6-85a8-440d467f24b9/bin/ukojak/witness.graphml [2020-11-29 23:55:35,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:55:35,464 INFO L168 Benchmark]: Toolchain (without parser) took 9583.03 ms. Allocated memory was 102.8 MB in the beginning and 180.4 MB in the end (delta: 77.6 MB). Free memory was 73.6 MB in the beginning and 115.7 MB in the end (delta: -42.1 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:35,465 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory was 59.0 MB in the beginning and 58.9 MB in the end (delta: 43.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:35,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.16 ms. Allocated memory is still 102.8 MB. Free memory was 73.4 MB in the beginning and 80.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:35,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.27 ms. Allocated memory is still 102.8 MB. Free memory was 80.0 MB in the beginning and 78.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:35,467 INFO L168 Benchmark]: Boogie Preprocessor took 26.88 ms. Allocated memory is still 102.8 MB. Free memory was 78.7 MB in the beginning and 77.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:35,468 INFO L168 Benchmark]: RCFGBuilder took 510.14 ms. Allocated memory is still 102.8 MB. Free memory was 77.4 MB in the beginning and 60.7 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:35,468 INFO L168 Benchmark]: CodeCheck took 8655.45 ms. Allocated memory was 102.8 MB in the beginning and 180.4 MB in the end (delta: 77.6 MB). Free memory was 60.7 MB in the beginning and 117.8 MB in the end (delta: -57.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:35,469 INFO L168 Benchmark]: Witness Printer took 74.87 ms. Allocated memory is still 180.4 MB. Free memory was 117.8 MB in the beginning and 115.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:35,473 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, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.3s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11264 SDtfs, 8606 SDslu, 2048 SDs, 0 SdLazy, 73478 SolverSat, 16668 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1788 GetRequests, 1599 SyntacticMatches, 55 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7213 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 6762 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 47/100 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: 12]: 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: 1]: Loop Invariant Derived loop invariant: (n + 1 <= l + k && 1 <= i) || (1 <= l && 1 <= i) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 <= l || n + 2 <= l + k - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((1 <= i && n + 2 <= l + k) || (1 <= l && 1 <= i)) || ((n + 1 <= l + k && 1 <= i) && !(k == 1 && i <= l + 1)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory was 59.0 MB in the beginning and 58.9 MB in the end (delta: 43.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.16 ms. Allocated memory is still 102.8 MB. Free memory was 73.4 MB in the beginning and 80.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.27 ms. Allocated memory is still 102.8 MB. Free memory was 80.0 MB in the beginning and 78.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.88 ms. Allocated memory is still 102.8 MB. Free memory was 78.7 MB in the beginning and 77.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 510.14 ms. Allocated memory is still 102.8 MB. Free memory was 77.4 MB in the beginning and 60.7 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 8655.45 ms. Allocated memory was 102.8 MB in the beginning and 180.4 MB in the end (delta: 77.6 MB). Free memory was 60.7 MB in the beginning and 117.8 MB in the end (delta: -57.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * Witness Printer took 74.87 ms. Allocated memory is still 180.4 MB. Free memory was 117.8 MB in the beginning and 115.7 MB in the end (delta: 2.1 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...