./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/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 77e92a11a4549a6f714898b45c2d349723607a29 ................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 07:18:53,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:18:53,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:18:53,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:18:53,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:18:53,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:18:53,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:18:53,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:18:53,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:18:53,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:18:53,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:18:53,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:18:53,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:18:53,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:18:53,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:18:53,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:18:53,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:18:53,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:18:53,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:18:53,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:18:53,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:18:53,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:18:53,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:18:53,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:18:53,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:18:53,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:18:53,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:18:53,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:18:53,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:18:53,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:18:53,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:18:53,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:18:53,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:18:53,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:18:53,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:18:53,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:18:53,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:18:53,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:18:53,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:18:53,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:18:53,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:18:53,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 07:18:53,327 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:18:53,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:18:53,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 07:18:53,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 07:18:53,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:18:53,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:18:53,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:18:53,330 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:18:53,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:18:53,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:18:53,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:18:53,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:18:53,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:18:53,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:18:53,332 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:18:53,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:18:53,332 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:18:53,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:18:53,332 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 07:18:53,333 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 07:18:53,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:18:53,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:18:53,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 07:18:53,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:18:53,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:18:53,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:18:53,334 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 07:18:53,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 07:18:53,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:18:53,335 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_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/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 -> 77e92a11a4549a6f714898b45c2d349723607a29 [2019-11-20 07:18:53,500 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:18:53,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:18:53,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:18:53,523 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:18:53,523 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:18:53,524 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/bin/ukojak/../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2019-11-20 07:18:53,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/bin/ukojak/data/3013a9ad5/02bdff2b389844dd9bf1b15cd958066b/FLAG06159b798 [2019-11-20 07:18:53,994 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:18:53,995 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2019-11-20 07:18:54,006 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/bin/ukojak/data/3013a9ad5/02bdff2b389844dd9bf1b15cd958066b/FLAG06159b798 [2019-11-20 07:18:54,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/bin/ukojak/data/3013a9ad5/02bdff2b389844dd9bf1b15cd958066b [2019-11-20 07:18:54,032 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:18:54,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:18:54,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:18:54,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:18:54,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:18:54,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:18:54" (1/1) ... [2019-11-20 07:18:54,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9c0def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:18:54, skipping insertion in model container [2019-11-20 07:18:54,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:18:54" (1/1) ... [2019-11-20 07:18:54,055 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:18:54,079 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:18:54,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:18:54,385 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:18:54,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:18:54,416 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:18:54,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:18:54 WrapperNode [2019-11-20 07:18:54,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:18:54,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:18:54,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:18:54,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:18:54,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:18:54" (1/1) ... [2019-11-20 07:18:54,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:18:54" (1/1) ... [2019-11-20 07:18:54,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:18:54,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:18:54,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:18:54,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:18:54,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:18:54" (1/1) ... [2019-11-20 07:18:54,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:18:54" (1/1) ... [2019-11-20 07:18:54,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:18:54" (1/1) ... [2019-11-20 07:18:54,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:18:54" (1/1) ... [2019-11-20 07:18:54,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:18:54" (1/1) ... [2019-11-20 07:18:54,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:18:54" (1/1) ... [2019-11-20 07:18:54,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:18:54" (1/1) ... [2019-11-20 07:18:54,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:18:54,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:18:54,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:18:54,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:18:54,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:18:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/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 [2019-11-20 07:18:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:18:54,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:18:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-20 07:18:54,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-20 07:18:54,763 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:18:54,763 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 07:18:54,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:18:54 BoogieIcfgContainer [2019-11-20 07:18:54,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:18:54,765 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 07:18:54,766 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 07:18:54,778 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 07:18:54,779 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:18:54" (1/1) ... [2019-11-20 07:18:54,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:18:54,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 07:18:54,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 31 transitions. [2019-11-20 07:18:54,837 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-11-20 07:18:54,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 07:18:54,839 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 07:18:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:18:55,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:18:55,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 07:18:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2019-11-20 07:18:55,142 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2019-11-20 07:18:55,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 07:18:55,146 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 07:18:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:18:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:18:55,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 07:18:55,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 28 states and 47 transitions. [2019-11-20 07:18:55,682 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-11-20 07:18:55,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 07:18:55,683 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 07:18:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:18:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 07:18:55,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 07:18:55,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 30 states and 52 transitions. [2019-11-20 07:18:55,943 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 52 transitions. [2019-11-20 07:18:55,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 07:18:55,945 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 07:18:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:18:56,127 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-20 07:18:57,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 07:18:57,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 37 states and 70 transitions. [2019-11-20 07:18:57,288 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 70 transitions. [2019-11-20 07:18:57,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-20 07:18:57,291 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 07:18:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:18:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-20 07:18:57,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 07:18:57,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 40 states and 79 transitions. [2019-11-20 07:18:57,839 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 79 transitions. [2019-11-20 07:18:57,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-20 07:18:57,841 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 07:18:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:18:57,883 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-20 07:18:58,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 07:18:58,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 22 states and 36 transitions. [2019-11-20 07:18:58,146 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 36 transitions. [2019-11-20 07:18:58,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 07:18:58,146 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2019-11-20 07:18:58,159 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-20 07:18:58,224 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 07:18:58,227 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 07:18:58,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 07:18:58 ImpRootNode [2019-11-20 07:18:58,227 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 07:18:58,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:18:58,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:18:58,228 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:18:58,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:18:54" (3/4) ... [2019-11-20 07:18:58,232 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 07:18:58,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2019-11-20 07:18:58,240 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-20 07:18:58,240 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 07:18:58,292 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d4c64777-2cfa-4fe8-9f7f-a35ac5d9a4a1/bin/ukojak/witness.graphml [2019-11-20 07:18:58,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:18:58,294 INFO L168 Benchmark]: Toolchain (without parser) took 4259.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -87.4 MB). Peak memory consumption was 72.0 MB. Max. memory is 11.5 GB. [2019-11-20 07:18:58,295 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:18:58,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -211.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 07:18:58,296 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:18:58,297 INFO L168 Benchmark]: Boogie Preprocessor took 19.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:18:58,297 INFO L168 Benchmark]: RCFGBuilder took 298.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2019-11-20 07:18:58,298 INFO L168 Benchmark]: CodeCheck took 3462.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 96.8 MB). Peak memory consumption was 96.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:18:58,298 INFO L168 Benchmark]: Witness Printer took 64.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 07:18:58,302 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, 21 locations, 1 error locations. Result: SAFE, OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1184 SDtfs, 364 SDslu, 256 SDs, 0 SdLazy, 2280 SolverSat, 640 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1306 GetRequests, 1210 SyntacticMatches, 30 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1202 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 14265 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 127/133 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: 5]: 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: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 379.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -211.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 298.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * CodeCheck took 3462.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 96.8 MB). Peak memory consumption was 96.8 MB. Max. memory is 11.5 GB. * Witness Printer took 64.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...