./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem18_label22.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_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem18_label22.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/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 8d7abcc679cf77bfca2695e005a5e4060fbc0089 ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:15:35,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:15:35,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:15:35,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:15:35,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:15:35,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:15:35,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:15:35,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:15:35,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:15:35,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:15:35,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:15:35,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:15:35,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:15:35,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:15:35,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:15:35,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:15:35,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:15:35,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:15:35,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:15:35,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:15:35,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:15:35,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:15:35,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:15:35,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:15:35,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:15:35,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:15:35,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:15:35,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:15:35,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:15:35,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:15:35,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:15:35,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:15:35,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:15:35,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:15:35,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:15:35,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:15:35,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:15:35,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:15:35,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:15:35,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:15:35,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:15:35,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:15:35,829 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:15:35,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:15:35,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:15:35,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:15:35,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:15:35,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:15:35,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:15:35,833 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:15:35,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:15:35,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:15:35,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:15:35,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:15:35,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:15:35,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:15:35,834 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:15:35,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:15:35,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:15:35,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:15:35,835 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:15:35,836 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:15:35,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:15:35,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:15:35,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:15:35,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:15:35,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:15:35,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:15:35,838 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:15:35,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:15:35,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:15:35,838 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_fcec65a4-32ef-4972-9c54-33e73e94f729/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d7abcc679cf77bfca2695e005a5e4060fbc0089 [2020-12-01 16:15:36,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:15:36,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:15:36,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:15:36,200 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:15:36,201 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:15:36,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem18_label22.c [2020-12-01 16:15:36,279 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak/data/467a4c0ff/7768fc25c362466fa424065240660cd9/FLAGac1081642 [2020-12-01 16:15:37,207 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:15:37,208 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/sv-benchmarks/c/eca-rers2012/Problem18_label22.c [2020-12-01 16:15:37,245 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak/data/467a4c0ff/7768fc25c362466fa424065240660cd9/FLAGac1081642 [2020-12-01 16:15:37,692 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak/data/467a4c0ff/7768fc25c362466fa424065240660cd9 [2020-12-01 16:15:37,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:15:37,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:15:37,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:15:37,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:15:37,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:15:37,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:15:37" (1/1) ... [2020-12-01 16:15:37,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d630f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:15:37, skipping insertion in model container [2020-12-01 16:15:37,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:15:37" (1/1) ... [2020-12-01 16:15:37,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:15:37,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:15:39,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:15:39,112 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:15:39,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:15:39,735 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:15:39,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:15:39 WrapperNode [2020-12-01 16:15:39,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:15:39,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:15:39,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:15:39,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:15:39,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:15:39" (1/1) ... [2020-12-01 16:15:39,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:15:39" (1/1) ... [2020-12-01 16:15:40,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:15:40,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:15:40,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:15:40,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:15:40,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:15:39" (1/1) ... [2020-12-01 16:15:40,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:15:39" (1/1) ... [2020-12-01 16:15:40,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:15:39" (1/1) ... [2020-12-01 16:15:40,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:15:39" (1/1) ... [2020-12-01 16:15:40,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:15:39" (1/1) ... [2020-12-01 16:15:40,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:15:39" (1/1) ... [2020-12-01 16:15:40,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:15:39" (1/1) ... [2020-12-01 16:15:40,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:15:40,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:15:40,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:15:40,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:15:40,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:15:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:15:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:15:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:15:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:15:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:25:25,656 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:25:25,657 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-01 16:25:25,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:25:25 BoogieIcfgContainer [2020-12-01 16:25:25,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:25:25,660 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:25:25,661 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:25:25,676 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:25:25,676 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:25:25" (1/1) ... [2020-12-01 16:25:25,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:25:25,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:25,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 16:25:25,743 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 16:25:25,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:25:25,746 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:26,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:25:26,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:26,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 16:25:26,660 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 16:25:26,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:25:26,660 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:30,817 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 16:25:33,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:33,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2020-12-01 16:25:33,131 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2020-12-01 16:25:33,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:25:33,132 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:42,545 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2020-12-01 16:25:43,560 WARN L197 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2020-12-01 16:25:44,509 WARN L197 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2020-12-01 16:25:44,601 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 16:25:44,810 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2020-12-01 16:25:45,406 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 22 [2020-12-01 16:25:46,325 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 25 [2020-12-01 16:25:46,584 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-01 16:25:46,840 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2020-12-01 16:25:47,055 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-01 16:25:48,436 WARN L197 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2020-12-01 16:25:48,698 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-01 16:25:49,029 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 23 [2020-12-01 16:25:49,272 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-01 16:25:50,008 WARN L197 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-12-01 16:25:50,257 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-01 16:25:50,611 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-01 16:25:51,438 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2020-12-01 16:25:51,701 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 19 [2020-12-01 16:25:52,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:52,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2020-12-01 16:25:52,788 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2020-12-01 16:25:52,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:25:52,793 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:59,045 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 16:25:59,312 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 20 [2020-12-01 16:25:59,653 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2020-12-01 16:26:07,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 33 states and 53 transitions. [2020-12-01 16:26:07,238 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 53 transitions. [2020-12-01 16:26:07,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:26:07,240 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:15,897 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 16:26:16,446 WARN L197 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2020-12-01 16:26:16,964 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-01 16:26:17,902 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2020-12-01 16:26:18,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 51 transitions. [2020-12-01 16:26:18,660 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-12-01 16:26:18,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:26:18,661 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2020-12-01 16:26:18,668 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:26:19,150 WARN L197 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 18 [2020-12-01 16:26:19,495 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 18 [2020-12-01 16:26:19,999 WARN L197 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 18 [2020-12-01 16:26:20,510 WARN L197 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 18 [2020-12-01 16:26:20,512 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:26:20,516 INFO L569 CodeCheckObserver]: Invariant with dag size 17 [2020-12-01 16:26:20,539 INFO L569 CodeCheckObserver]: Invariant with dag size 17 [2020-12-01 16:26:20,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:26:20 ImpRootNode [2020-12-01 16:26:20,542 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:26:20,545 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:26:20,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:26:20,546 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:26:20,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:25:25" (3/4) ... [2020-12-01 16:26:20,553 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:26:20,665 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 733 nodes and edges [2020-12-01 16:26:20,679 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2020-12-01 16:26:20,693 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 16:26:20,715 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 16:26:21,291 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fcec65a4-32ef-4972-9c54-33e73e94f729/bin/ukojak/witness.graphml [2020-12-01 16:26:21,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:26:21,293 INFO L168 Benchmark]: Toolchain (without parser) took 643596.25 ms. Allocated memory was 96.5 MB in the beginning and 7.5 GB in the end (delta: 7.4 GB). Free memory was 58.3 MB in the beginning and 4.0 GB in the end (delta: -3.9 GB). Peak memory consumption was 3.5 GB. Max. memory is 16.1 GB. [2020-12-01 16:26:21,294 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 96.5 MB. Free memory was 52.4 MB in the beginning and 52.4 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:26:21,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2039.02 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 58.0 MB in the beginning and 68.7 MB in the end (delta: -10.7 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:26:21,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 376.82 ms. Allocated memory was 117.4 MB in the beginning and 155.2 MB in the end (delta: 37.7 MB). Free memory was 68.7 MB in the beginning and 83.5 MB in the end (delta: -14.8 MB). Peak memory consumption was 38.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:26:21,296 INFO L168 Benchmark]: Boogie Preprocessor took 376.50 ms. Allocated memory is still 155.2 MB. Free memory was 83.5 MB in the beginning and 74.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:26:21,297 INFO L168 Benchmark]: RCFGBuilder took 585165.22 ms. Allocated memory was 155.2 MB in the beginning and 7.5 GB in the end (delta: 7.3 GB). Free memory was 74.8 MB in the beginning and 4.1 GB in the end (delta: -4.0 GB). Peak memory consumption was 3.5 GB. Max. memory is 16.1 GB. [2020-12-01 16:26:21,298 INFO L168 Benchmark]: CodeCheck took 54882.11 ms. Allocated memory is still 7.5 GB. Free memory was 4.1 GB in the beginning and 4.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:26:21,299 INFO L168 Benchmark]: Witness Printer took 746.69 ms. Allocated memory is still 7.5 GB. Free memory was 4.1 GB in the beginning and 4.0 GB in the end (delta: 87.0 MB). Peak memory consumption was 83.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:26:21,302 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: 52.9s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 204 SDtfs, 408 SDslu, 280 SDs, 0 SdLazy, 1094 SolverSat, 186 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 513 GetRequests, 451 SyntacticMatches, 10 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 14.4s SatisfiabilityAnalysisTime, 16.1s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 8728 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: 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: (((!(a24 == 1) || 115 < a3) || a18 <= 10) || !(a15 == 4)) || 11 < a18 - InvariantResult [Line: 4269]: Loop Invariant Derived loop invariant: (((12 <= a18 || 116 <= a3) || !(a24 == 1)) || a18 <= 10) || !(a15 == 4) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 96.5 MB. Free memory was 52.4 MB in the beginning and 52.4 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2039.02 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 58.0 MB in the beginning and 68.7 MB in the end (delta: -10.7 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 376.82 ms. Allocated memory was 117.4 MB in the beginning and 155.2 MB in the end (delta: 37.7 MB). Free memory was 68.7 MB in the beginning and 83.5 MB in the end (delta: -14.8 MB). Peak memory consumption was 38.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 376.50 ms. Allocated memory is still 155.2 MB. Free memory was 83.5 MB in the beginning and 74.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 585165.22 ms. Allocated memory was 155.2 MB in the beginning and 7.5 GB in the end (delta: 7.3 GB). Free memory was 74.8 MB in the beginning and 4.1 GB in the end (delta: -4.0 GB). Peak memory consumption was 3.5 GB. Max. memory is 16.1 GB. * CodeCheck took 54882.11 ms. Allocated memory is still 7.5 GB. Free memory was 4.1 GB in the beginning and 4.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * Witness Printer took 746.69 ms. Allocated memory is still 7.5 GB. Free memory was 4.1 GB in the beginning and 4.0 GB in the end (delta: 87.0 MB). Peak memory consumption was 83.9 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...