./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i --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_b8c978d5-c53f-4dad-9a1f-98a0539d8921/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/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 8c573b473fe5d13973daf8eaca36a6666498a98a .................................................................................................................................................................................................................................................................. 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 16:25:51,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:25:51,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:25:51,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:25:51,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:25:51,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:25:51,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:25:51,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:25:51,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:25:51,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:25:51,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:25:51,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:25:51,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:25:51,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:25:51,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:25:51,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:25:51,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:25:51,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:25:51,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:25:51,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:25:51,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:25:51,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:25:51,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:25:51,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:25:51,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:25:51,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:25:51,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:25:51,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:25:51,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:25:51,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:25:51,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:25:51,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:25:51,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:25:51,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:25:51,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:25:51,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:25:51,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:25:51,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:25:51,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:25:51,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:25:51,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:25:51,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:25:51,307 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:25:51,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:25:51,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:25:51,310 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:25:51,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:25:51,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:25:51,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:25:51,312 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:25:51,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:25:51,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:25:51,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:25:51,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:25:51,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:25:51,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:25:51,315 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:25:51,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:25:51,315 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:25:51,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:25:51,316 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:25:51,316 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:25:51,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:25:51,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:25:51,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:25:51,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:25:51,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:25:51,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:25:51,318 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:25:51,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:25:51,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:25:51,320 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_b8c978d5-c53f-4dad-9a1f-98a0539d8921/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c573b473fe5d13973daf8eaca36a6666498a98a [2020-12-01 16:25:51,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:25:51,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:25:51,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:25:51,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:25:51,763 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:25:51,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/bin/ukojak/../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2020-12-01 16:25:51,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/bin/ukojak/data/09afbd3de/9b44523a552a4b298ae993ebaec4ad7c/FLAG5698ba767 [2020-12-01 16:25:52,705 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:25:52,709 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2020-12-01 16:25:52,727 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/bin/ukojak/data/09afbd3de/9b44523a552a4b298ae993ebaec4ad7c/FLAG5698ba767 [2020-12-01 16:25:52,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/bin/ukojak/data/09afbd3de/9b44523a552a4b298ae993ebaec4ad7c [2020-12-01 16:25:52,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:25:52,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:25:52,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:25:52,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:25:52,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:25:52,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:25:52" (1/1) ... [2020-12-01 16:25:52,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1041a76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:52, skipping insertion in model container [2020-12-01 16:25:52,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:25:52" (1/1) ... [2020-12-01 16:25:52,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:25:53,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:25:53,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:25:53,325 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:25:53,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:25:53,421 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:25:53,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:53 WrapperNode [2020-12-01 16:25:53,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:25:53,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:25:53,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:25:53,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:25:53,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:53" (1/1) ... [2020-12-01 16:25:53,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:53" (1/1) ... [2020-12-01 16:25:53,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:25:53,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:25:53,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:25:53,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:25:53,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:53" (1/1) ... [2020-12-01 16:25:53,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:53" (1/1) ... [2020-12-01 16:25:53,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:53" (1/1) ... [2020-12-01 16:25:53,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:53" (1/1) ... [2020-12-01 16:25:53,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:53" (1/1) ... [2020-12-01 16:25:53,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:53" (1/1) ... [2020-12-01 16:25:53,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:53" (1/1) ... [2020-12-01 16:25:53,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:25:53,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:25:53,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:25:53,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:25:53,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/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 16:25:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:25:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:25:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:25:53,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:25:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 16:25:53,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 16:25:54,276 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:25:54,276 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-01 16:25:54,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:25:54 BoogieIcfgContainer [2020-12-01 16:25:54,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:25:54,280 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:25:54,280 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:25:54,296 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:25:54,297 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:25:54" (1/1) ... [2020-12-01 16:25:54,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:25:54,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:54,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2020-12-01 16:25:54,383 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2020-12-01 16:25:54,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:25:54,390 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:54,833 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 16:25:55,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:55,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2020-12-01 16:25:55,081 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2020-12-01 16:25:55,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 16:25:55,083 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:55,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:25:55,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:55,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2020-12-01 16:25:55,760 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2020-12-01 16:25:55,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:25:55,763 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:55,911 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 16:25:56,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:56,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 53 transitions. [2020-12-01 16:25:56,133 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2020-12-01 16:25:56,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 16:25:56,135 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 16:25:58,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:58,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 38 states and 74 transitions. [2020-12-01 16:25:58,060 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 74 transitions. [2020-12-01 16:25:58,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-01 16:25:58,063 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:58,279 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-01 16:25:59,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:59,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 41 states and 84 transitions. [2020-12-01 16:25:59,046 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 84 transitions. [2020-12-01 16:25:59,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-01 16:25:59,051 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:59,154 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-12-01 16:26:00,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:00,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 45 states and 94 transitions. [2020-12-01 16:26:00,135 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 94 transitions. [2020-12-01 16:26:00,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-01 16:26:00,138 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-12-01 16:26:00,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:00,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 26 states and 47 transitions. [2020-12-01 16:26:00,555 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 47 transitions. [2020-12-01 16:26:00,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:26:00,557 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-12-01 16:26:00,572 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:26:00,659 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:26:00,663 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:26:00,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:26:00 ImpRootNode [2020-12-01 16:26:00,664 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:26:00,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:26:00,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:26:00,665 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:26:00,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:25:54" (3/4) ... [2020-12-01 16:26:00,671 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:26:00,680 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-12-01 16:26:00,686 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-01 16:26:00,687 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 16:26:00,687 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:26:00,687 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:26:00,766 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b8c978d5-c53f-4dad-9a1f-98a0539d8921/bin/ukojak/witness.graphml [2020-12-01 16:26:00,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:26:00,769 INFO L168 Benchmark]: Toolchain (without parser) took 7810.13 ms. Allocated memory was 117.4 MB in the beginning and 178.3 MB in the end (delta: 60.8 MB). Free memory was 93.7 MB in the beginning and 59.6 MB in the end (delta: 34.1 MB). Peak memory consumption was 95.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:26:00,770 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 117.4 MB. Free memory is still 75.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:26:00,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.58 ms. Allocated memory was 117.4 MB in the beginning and 178.3 MB in the end (delta: 60.8 MB). Free memory was 93.2 MB in the beginning and 154.1 MB in the end (delta: -60.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:26:00,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.44 ms. Allocated memory is still 178.3 MB. Free memory was 154.1 MB in the beginning and 153.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:26:00,772 INFO L168 Benchmark]: Boogie Preprocessor took 62.71 ms. Allocated memory is still 178.3 MB. Free memory was 153.0 MB in the beginning and 150.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:26:00,773 INFO L168 Benchmark]: RCFGBuilder took 726.47 ms. Allocated memory is still 178.3 MB. Free memory was 150.9 MB in the beginning and 134.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:26:00,773 INFO L168 Benchmark]: CodeCheck took 6383.69 ms. Allocated memory is still 178.3 MB. Free memory was 134.1 MB in the beginning and 62.8 MB in the end (delta: 71.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:26:00,774 INFO L168 Benchmark]: Witness Printer took 101.82 ms. Allocated memory is still 178.3 MB. Free memory was 62.8 MB in the beginning and 59.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:26:00,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2432 SDtfs, 728 SDslu, 512 SDs, 0 SdLazy, 4758 SolverSat, 1290 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1700 GetRequests, 1582 SyntacticMatches, 38 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1931 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 21370 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 172/193 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: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 117.4 MB. Free memory is still 75.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 464.58 ms. Allocated memory was 117.4 MB in the beginning and 178.3 MB in the end (delta: 60.8 MB). Free memory was 93.2 MB in the beginning and 154.1 MB in the end (delta: -60.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.44 ms. Allocated memory is still 178.3 MB. Free memory was 154.1 MB in the beginning and 153.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.71 ms. Allocated memory is still 178.3 MB. Free memory was 153.0 MB in the beginning and 150.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 726.47 ms. Allocated memory is still 178.3 MB. Free memory was 150.9 MB in the beginning and 134.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 6383.69 ms. Allocated memory is still 178.3 MB. Free memory was 134.1 MB in the beginning and 62.8 MB in the end (delta: 71.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 16.1 GB. * Witness Printer took 101.82 ms. Allocated memory is still 178.3 MB. Free memory was 62.8 MB in the beginning and 59.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...