./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label07.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/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 da188367712a7f199981f53b19f325dd84e9309a .................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 18:28:03,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:28:03,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:28:03,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:28:03,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:28:03,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:28:03,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:28:03,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:28:03,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:28:03,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:28:03,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:28:03,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:28:03,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:28:03,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:28:03,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:28:03,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:28:03,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:28:03,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:28:03,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:28:03,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:28:03,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:28:03,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:28:03,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:28:03,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:28:03,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:28:03,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:28:03,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:28:03,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:28:03,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:28:03,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:28:03,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:28:03,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:28:03,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:28:03,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:28:03,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:28:03,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:28:03,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:28:03,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:28:03,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:28:03,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:28:03,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:28:03,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:28:03,513 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:28:03,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:28:03,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:28:03,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:28:03,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:28:03,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:28:03,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:28:03,517 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:28:03,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:28:03,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:28:03,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:28:03,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:28:03,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:28:03,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:28:03,519 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:28:03,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:28:03,519 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:28:03,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:28:03,520 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:28:03,520 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:28:03,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:28:03,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:28:03,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:28:03,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:28:03,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:28:03,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:28:03,522 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:28:03,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:28:03,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:28:03,523 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_bb00de34-5b81-4488-be2e-8b43ee73df51/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da188367712a7f199981f53b19f325dd84e9309a [2020-12-01 18:28:03,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:28:03,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:28:03,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:28:03,819 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:28:03,819 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:28:03,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem16_label07.c [2020-12-01 18:28:03,901 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak/data/909d08125/c64259ee80664359ab4efd1e37d396d3/FLAG47608c6ac [2020-12-01 18:28:04,591 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:28:04,592 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/sv-benchmarks/c/eca-rers2012/Problem16_label07.c [2020-12-01 18:28:04,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak/data/909d08125/c64259ee80664359ab4efd1e37d396d3/FLAG47608c6ac [2020-12-01 18:28:04,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak/data/909d08125/c64259ee80664359ab4efd1e37d396d3 [2020-12-01 18:28:04,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:28:04,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:28:04,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:28:04,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:28:04,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:28:04,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:28:04" (1/1) ... [2020-12-01 18:28:04,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4226562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:04, skipping insertion in model container [2020-12-01 18:28:04,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:28:04" (1/1) ... [2020-12-01 18:28:04,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:28:04,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:28:05,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:28:05,774 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:28:06,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:28:06,057 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:28:06,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:06 WrapperNode [2020-12-01 18:28:06,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:28:06,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:28:06,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:28:06,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:28:06,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:06" (1/1) ... [2020-12-01 18:28:06,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:06" (1/1) ... [2020-12-01 18:28:06,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:28:06,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:28:06,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:28:06,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:28:06,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:06" (1/1) ... [2020-12-01 18:28:06,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:06" (1/1) ... [2020-12-01 18:28:06,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:06" (1/1) ... [2020-12-01 18:28:06,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:06" (1/1) ... [2020-12-01 18:28:06,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:06" (1/1) ... [2020-12-01 18:28:06,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:06" (1/1) ... [2020-12-01 18:28:06,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:06" (1/1) ... [2020-12-01 18:28:06,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:28:06,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:28:06,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:28:06,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:28:06,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:28:06,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:28:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:28:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:28:06,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:29:52,021 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:29:52,022 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-01 18:29:52,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:29:52 BoogieIcfgContainer [2020-12-01 18:29:52,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:29:52,027 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:29:52,027 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:29:52,041 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:29:52,042 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:29:52" (1/1) ... [2020-12-01 18:29:52,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:29:52,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:29:52,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 18:29:52,120 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 18:29:52,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:29:52,124 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:29:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:29:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:29:53,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:29:53,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2020-12-01 18:29:53,369 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-12-01 18:29:53,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:29:53,370 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:29:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:29:55,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:29:57,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:29:57,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 19 states and 29 transitions. [2020-12-01 18:29:57,438 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 29 transitions. [2020-12-01 18:29:57,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:29:57,441 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:29:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:30:01,300 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2020-12-01 18:30:01,723 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-12-01 18:30:01,794 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:30:11,356 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2020-12-01 18:30:11,913 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-01 18:30:12,196 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 31 [2020-12-01 18:30:13,072 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2020-12-01 18:30:13,363 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2020-12-01 18:30:13,875 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2020-12-01 18:30:22,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:30:22,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 30 states and 58 transitions. [2020-12-01 18:30:22,071 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 58 transitions. [2020-12-01 18:30:22,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:30:22,072 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:30:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:30:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:30:25,363 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2020-12-01 18:30:25,561 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2020-12-01 18:30:25,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:30:25,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 31 states and 58 transitions. [2020-12-01 18:30:25,872 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 58 transitions. [2020-12-01 18:30:25,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:30:25,873 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:30:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:30:29,910 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 18:30:30,284 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-12-01 18:30:30,685 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-12-01 18:30:31,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:30:31,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 29 states and 56 transitions. [2020-12-01 18:30:31,760 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 56 transitions. [2020-12-01 18:30:31,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:30:31,761 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2020-12-01 18:30:31,784 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 18:30:32,008 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 24 [2020-12-01 18:30:32,296 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 21 [2020-12-01 18:30:32,544 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 22 [2020-12-01 18:30:32,806 WARN L197 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 21 [2020-12-01 18:30:32,807 INFO L569 CodeCheckObserver]: Invariant with dag size 22 [2020-12-01 18:30:32,819 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:30:32,820 INFO L569 CodeCheckObserver]: Invariant with dag size 19 [2020-12-01 18:30:32,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:30:32 ImpRootNode [2020-12-01 18:30:32,822 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:30:32,823 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:30:32,823 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:30:32,823 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:30:32,824 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:29:52" (3/4) ... [2020-12-01 18:30:32,838 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:30:32,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 371 nodes and edges [2020-12-01 18:30:32,897 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-01 18:30:32,903 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 18:30:32,909 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:30:33,229 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bb00de34-5b81-4488-be2e-8b43ee73df51/bin/ukojak/witness.graphml [2020-12-01 18:30:33,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:30:33,234 INFO L168 Benchmark]: Toolchain (without parser) took 148448.24 ms. Allocated memory was 98.6 MB in the beginning and 5.2 GB in the end (delta: 5.1 GB). Free memory was 63.2 MB in the beginning and 4.4 GB in the end (delta: -4.3 GB). Peak memory consumption was 776.6 MB. Max. memory is 16.1 GB. [2020-12-01 18:30:33,234 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 98.6 MB. Free memory was 55.8 MB in the beginning and 55.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:30:33,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1270.62 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 63.2 MB in the beginning and 79.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. [2020-12-01 18:30:33,235 INFO L168 Benchmark]: Boogie Procedure Inliner took 203.85 ms. Allocated memory is still 121.6 MB. Free memory was 79.9 MB in the beginning and 56.2 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:30:33,236 INFO L168 Benchmark]: Boogie Preprocessor took 188.73 ms. Allocated memory is still 121.6 MB. Free memory was 56.2 MB in the beginning and 69.4 MB in the end (delta: -13.2 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2020-12-01 18:30:33,236 INFO L168 Benchmark]: RCFGBuilder took 105571.65 ms. Allocated memory was 121.6 MB in the beginning and 4.6 GB in the end (delta: 4.5 GB). Free memory was 69.4 MB in the beginning and 3.9 GB in the end (delta: -3.8 GB). Peak memory consumption was 784.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:30:33,237 INFO L168 Benchmark]: CodeCheck took 40795.26 ms. Allocated memory was 4.6 GB in the beginning and 5.2 GB in the end (delta: 532.7 MB). Free memory was 3.9 GB in the beginning and 4.4 GB in the end (delta: -546.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:30:33,238 INFO L168 Benchmark]: Witness Printer took 409.97 ms. Allocated memory is still 5.2 GB. Free memory was 4.4 GB in the beginning and 4.4 GB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:30:33,241 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, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 39.6s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 196 SDtfs, 406 SDslu, 264 SDs, 0 SdLazy, 1280 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 57.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 551 GetRequests, 480 SyntacticMatches, 9 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1637 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 7.0s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 9412 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 21/44 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: 13]: 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: 33]: Loop Invariant Derived loop invariant: (((((a12 == 6 || a15 <= 2) || 3 < a15) || 7 < a12) || a12 <= 5) || 0 < a18 + 156) || !(a16 == 8) - InvariantResult [Line: 1777]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: ((((4 <= a15 || a15 <= 2) || a12 <= 6) || 8 <= a12) || !(a16 == 8)) || 0 < a18 + 156 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 98.6 MB. Free memory was 55.8 MB in the beginning and 55.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1270.62 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 63.2 MB in the beginning and 79.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 203.85 ms. Allocated memory is still 121.6 MB. Free memory was 79.9 MB in the beginning and 56.2 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 188.73 ms. Allocated memory is still 121.6 MB. Free memory was 56.2 MB in the beginning and 69.4 MB in the end (delta: -13.2 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 105571.65 ms. Allocated memory was 121.6 MB in the beginning and 4.6 GB in the end (delta: 4.5 GB). Free memory was 69.4 MB in the beginning and 3.9 GB in the end (delta: -3.8 GB). Peak memory consumption was 784.4 MB. Max. memory is 16.1 GB. * CodeCheck took 40795.26 ms. Allocated memory was 4.6 GB in the beginning and 5.2 GB in the end (delta: 532.7 MB). Free memory was 3.9 GB in the beginning and 4.4 GB in the end (delta: -546.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 409.97 ms. Allocated memory is still 5.2 GB. Free memory was 4.4 GB in the beginning and 4.4 GB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...