./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem18_label18.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_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem18_label18.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/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 5f3dbd17fcfa96133dd5da256d072415b6f1c799 ................................................................................................................................................................................................................................................................ 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 18:11:20,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:11:20,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:11:20,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:11:20,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:11:20,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:11:20,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:11:20,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:11:20,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:11:20,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:11:20,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:11:20,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:11:20,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:11:20,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:11:20,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:11:20,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:11:20,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:11:20,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:11:20,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:11:20,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:11:20,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:11:20,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:11:20,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:11:20,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:11:20,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:11:20,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:11:20,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:11:20,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:11:20,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:11:20,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:11:20,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:11:20,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:11:20,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:11:20,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:11:20,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:11:20,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:11:20,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:11:20,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:11:20,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:11:20,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:11:20,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:11:20,717 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:11:20,747 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:11:20,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:11:20,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:11:20,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:11:20,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:11:20,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:11:20,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:11:20,751 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:11:20,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:11:20,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:11:20,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:11:20,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:11:20,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:11:20,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:11:20,753 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:11:20,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:11:20,754 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:11:20,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:11:20,755 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:11:20,755 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:11:20,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:11:20,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:11:20,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:11:20,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:11:20,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:11:20,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:11:20,757 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:11:20,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:11:20,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:11:20,758 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_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f3dbd17fcfa96133dd5da256d072415b6f1c799 [2020-12-01 18:11:21,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:11:21,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:11:21,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:11:21,128 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:11:21,129 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:11:21,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem18_label18.c [2020-12-01 18:11:21,227 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/bin/ukojak/data/ce0437832/f6f598f28122445dbe548ef2ec135619/FLAG36236cb5a [2020-12-01 18:11:22,218 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:11:22,219 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/sv-benchmarks/c/eca-rers2012/Problem18_label18.c [2020-12-01 18:11:22,257 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/bin/ukojak/data/ce0437832/f6f598f28122445dbe548ef2ec135619/FLAG36236cb5a [2020-12-01 18:11:22,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/bin/ukojak/data/ce0437832/f6f598f28122445dbe548ef2ec135619 [2020-12-01 18:11:22,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:11:22,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:11:22,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:11:22,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:11:22,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:11:22,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:11:22" (1/1) ... [2020-12-01 18:11:22,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c71dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:22, skipping insertion in model container [2020-12-01 18:11:22,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:11:22" (1/1) ... [2020-12-01 18:11:22,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:11:22,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:11:23,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:11:23,967 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:11:24,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:11:24,656 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:11:24,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:24 WrapperNode [2020-12-01 18:11:24,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:11:24,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:11:24,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:11:24,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:11:24,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:24" (1/1) ... [2020-12-01 18:11:24,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:24" (1/1) ... [2020-12-01 18:11:25,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:11:25,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:11:25,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:11:25,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:11:25,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:24" (1/1) ... [2020-12-01 18:11:25,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:24" (1/1) ... [2020-12-01 18:11:25,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:24" (1/1) ... [2020-12-01 18:11:25,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:24" (1/1) ... [2020-12-01 18:11:25,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:24" (1/1) ... [2020-12-01 18:11:25,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:24" (1/1) ... [2020-12-01 18:11:25,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:24" (1/1) ... [2020-12-01 18:11:25,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:11:25,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:11:25,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:11:25,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:11:25,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/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 18:11:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:11:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:11:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:11:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:21:56,519 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:21:56,519 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-01 18:21:56,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:21:56 BoogieIcfgContainer [2020-12-01 18:21:56,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:21:56,524 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:21:56,524 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:21:56,541 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:21:56,542 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:21:56" (1/1) ... [2020-12-01 18:21:56,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:21:56,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:56,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 18:21:56,629 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 18:21:56,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:21:56,632 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:57,037 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 18:21:57,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:57,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 18:21:57,696 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 18:21:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:21:57,697 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:22:01,947 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 18:22:02,144 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 15 [2020-12-01 18:22:03,743 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2020-12-01 18:22:04,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:22:04,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2020-12-01 18:22:04,455 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2020-12-01 18:22:04,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:22:04,456 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:22:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:22:19,261 WARN L197 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 25 [2020-12-01 18:22:19,526 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-01 18:22:19,743 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 18:22:20,026 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-01 18:22:22,233 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2020-12-01 18:22:22,658 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 21 [2020-12-01 18:22:22,947 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-01 18:22:23,878 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-01 18:22:25,250 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-01 18:22:25,649 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-01 18:22:25,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:22:25,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2020-12-01 18:22:25,773 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2020-12-01 18:22:25,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:22:25,777 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:22:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:22:39,000 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 18:22:40,626 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2020-12-01 18:22:40,862 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-01 18:22:41,697 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2020-12-01 18:22:41,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:22:41,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 32 transitions. [2020-12-01 18:22:41,939 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 32 transitions. [2020-12-01 18:22:41,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:22:41,940 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2020-12-01 18:22:41,949 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 18:22:42,415 WARN L197 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 18 [2020-12-01 18:22:42,591 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2020-12-01 18:22:43,048 WARN L197 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 18 [2020-12-01 18:22:43,509 WARN L197 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 17 [2020-12-01 18:22:43,512 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:22:43,518 INFO L569 CodeCheckObserver]: Invariant with dag size 17 [2020-12-01 18:22:43,538 INFO L569 CodeCheckObserver]: Invariant with dag size 17 [2020-12-01 18:22:43,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:22:43 ImpRootNode [2020-12-01 18:22:43,540 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:22:43,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:22:43,542 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:22:43,554 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:22:43,557 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:21:56" (3/4) ... [2020-12-01 18:22:43,561 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:22:43,736 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 732 nodes and edges [2020-12-01 18:22:43,749 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2020-12-01 18:22:43,775 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 18:22:43,807 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:22:44,500 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3ebb0ab8-3f7a-4426-95c4-2b0105351eea/bin/ukojak/witness.graphml [2020-12-01 18:22:44,502 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:22:44,503 INFO L168 Benchmark]: Toolchain (without parser) took 681845.18 ms. Allocated memory was 113.2 MB in the beginning and 7.0 GB in the end (delta: 6.9 GB). Free memory was 69.8 MB in the beginning and 3.7 GB in the end (delta: -3.7 GB). Peak memory consumption was 3.2 GB. Max. memory is 16.1 GB. [2020-12-01 18:22:44,504 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 81.8 MB. Free memory was 52.9 MB in the beginning and 52.8 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:22:44,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1989.66 ms. Allocated memory is still 113.2 MB. Free memory was 69.8 MB in the beginning and 50.3 MB in the end (delta: 19.4 MB). Peak memory consumption was 36.3 MB. Max. memory is 16.1 GB. [2020-12-01 18:22:44,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 390.42 ms. Allocated memory was 113.2 MB in the beginning and 157.3 MB in the end (delta: 44.0 MB). Free memory was 50.3 MB in the beginning and 77.5 MB in the end (delta: -27.1 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-12-01 18:22:44,509 INFO L168 Benchmark]: Boogie Preprocessor took 552.18 ms. Allocated memory is still 157.3 MB. Free memory was 77.5 MB in the beginning and 80.6 MB in the end (delta: -3.1 MB). Peak memory consumption was 46.6 MB. Max. memory is 16.1 GB. [2020-12-01 18:22:44,509 INFO L168 Benchmark]: RCFGBuilder took 630918.23 ms. Allocated memory was 157.3 MB in the beginning and 7.0 GB in the end (delta: 6.9 GB). Free memory was 80.1 MB in the beginning and 3.8 GB in the end (delta: -3.7 GB). Peak memory consumption was 3.4 GB. Max. memory is 16.1 GB. [2020-12-01 18:22:44,510 INFO L168 Benchmark]: CodeCheck took 47016.44 ms. Allocated memory is still 7.0 GB. Free memory was 3.8 GB in the beginning and 3.8 GB in the end (delta: -28.8 MB). Peak memory consumption was 80.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:22:44,510 INFO L168 Benchmark]: Witness Printer took 960.91 ms. Allocated memory is still 7.0 GB. Free memory was 3.8 GB in the beginning and 3.7 GB in the end (delta: 88.1 MB). Peak memory consumption was 88.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:22:44,513 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: 45.3s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 84 SDtfs, 156 SDslu, 104 SDs, 0 SdLazy, 394 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 348 GetRequests, 308 SyntacticMatches, 10 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.2s SsaConstructionTime, 13.7s SatisfiabilityAnalysisTime, 18.9s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 3848 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 21/34 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: 14]: 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: 4263]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((a18 <= 11 || a3 <= 417) || !(a24 == 0)) || !(a15 == 4)) || 12 < a18 - InvariantResult [Line: 4269]: Loop Invariant Derived loop invariant: (((a18 <= 11 || a3 <= 417) || !(a24 == 0)) || !(a15 == 4)) || 12 < a18 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 81.8 MB. Free memory was 52.9 MB in the beginning and 52.8 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1989.66 ms. Allocated memory is still 113.2 MB. Free memory was 69.8 MB in the beginning and 50.3 MB in the end (delta: 19.4 MB). Peak memory consumption was 36.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 390.42 ms. Allocated memory was 113.2 MB in the beginning and 157.3 MB in the end (delta: 44.0 MB). Free memory was 50.3 MB in the beginning and 77.5 MB in the end (delta: -27.1 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 552.18 ms. Allocated memory is still 157.3 MB. Free memory was 77.5 MB in the beginning and 80.6 MB in the end (delta: -3.1 MB). Peak memory consumption was 46.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 630918.23 ms. Allocated memory was 157.3 MB in the beginning and 7.0 GB in the end (delta: 6.9 GB). Free memory was 80.1 MB in the beginning and 3.8 GB in the end (delta: -3.7 GB). Peak memory consumption was 3.4 GB. Max. memory is 16.1 GB. * CodeCheck took 47016.44 ms. Allocated memory is still 7.0 GB. Free memory was 3.8 GB in the beginning and 3.8 GB in the end (delta: -28.8 MB). Peak memory consumption was 80.2 MB. Max. memory is 16.1 GB. * Witness Printer took 960.91 ms. Allocated memory is still 7.0 GB. Free memory was 3.8 GB in the beginning and 3.7 GB in the end (delta: 88.1 MB). Peak memory consumption was 88.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process Received shutdown request...