./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label07.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/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 f428802ac72f1d2a0fe821ea4740cdcba55def6a ........................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:38:56,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:38:56,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:38:56,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:38:56,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:38:56,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:38:56,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:38:56,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:38:56,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:38:56,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:38:56,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:38:56,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:38:56,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:38:56,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:38:56,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:38:56,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:38:56,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:38:56,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:38:56,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:38:56,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:38:56,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:38:56,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:38:56,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:38:56,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:38:56,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:38:56,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:38:56,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:38:56,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:38:56,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:38:56,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:38:56,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:38:56,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:38:56,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:38:56,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:38:56,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:38:56,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:38:56,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:38:56,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:38:56,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:38:56,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:38:56,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:38:56,739 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 18:38:56,764 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:38:56,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:38:56,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 18:38:56,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 18:38:56,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:38:56,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:38:56,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:38:56,769 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:38:56,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:38:56,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:38:56,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:38:56,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:38:56,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:38:56,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:38:56,772 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:38:56,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:38:56,773 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:38:56,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:38:56,773 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 18:38:56,774 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 18:38:56,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:38:56,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:38:56,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 18:38:56,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:38:56,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:38:56,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:38:56,776 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 18:38:56,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:38:56,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:38:56,777 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_cedbe769-ad17-427e-b6d0-33c08daa4a89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f428802ac72f1d2a0fe821ea4740cdcba55def6a [2020-11-29 18:38:57,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:38:57,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:38:57,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:38:57,259 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:38:57,262 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:38:57,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem10_label07.c [2020-11-29 18:38:57,437 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/bin/ukojak/data/d7061d1fc/56ca14c92a4c4c2680e96552b49a4216/FLAG4baa4a88f [2020-11-29 18:38:58,254 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:38:58,255 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/sv-benchmarks/c/eca-rers2012/Problem10_label07.c [2020-11-29 18:38:58,290 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/bin/ukojak/data/d7061d1fc/56ca14c92a4c4c2680e96552b49a4216/FLAG4baa4a88f [2020-11-29 18:38:58,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/bin/ukojak/data/d7061d1fc/56ca14c92a4c4c2680e96552b49a4216 [2020-11-29 18:38:58,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:38:58,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:38:58,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:38:58,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:38:58,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:38:58,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:38:58" (1/1) ... [2020-11-29 18:38:58,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a10b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:38:58, skipping insertion in model container [2020-11-29 18:38:58,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:38:58" (1/1) ... [2020-11-29 18:38:58,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:38:58,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:38:59,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:38:59,155 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:38:59,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:38:59,382 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:38:59,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:38:59 WrapperNode [2020-11-29 18:38:59,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:38:59,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:38:59,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:38:59,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:38:59,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:38:59" (1/1) ... [2020-11-29 18:38:59,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:38:59" (1/1) ... [2020-11-29 18:38:59,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:38:59,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:38:59,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:38:59,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:38:59,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:38:59" (1/1) ... [2020-11-29 18:38:59,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:38:59" (1/1) ... [2020-11-29 18:38:59,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:38:59" (1/1) ... [2020-11-29 18:38:59,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:38:59" (1/1) ... [2020-11-29 18:38:59,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:38:59" (1/1) ... [2020-11-29 18:38:59,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:38:59" (1/1) ... [2020-11-29 18:38:59,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:38:59" (1/1) ... [2020-11-29 18:38:59,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:38:59,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:38:59,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:38:59,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:38:59,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:38:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/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 [2020-11-29 18:38:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:38:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:38:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:38:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:40:01,988 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:40:01,988 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 18:40:01,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:40:01 BoogieIcfgContainer [2020-11-29 18:40:01,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:40:01,992 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 18:40:01,993 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 18:40:02,004 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 18:40:02,004 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:40:01" (1/1) ... [2020-11-29 18:40:02,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:40:02,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-11-29 18:40:02,105 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-11-29 18:40:02,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 18:40:02,108 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:40:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:02,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:02,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:40:02,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-29 18:40:02,454 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-29 18:40:02,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:40:02,455 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:40:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:03,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:06,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:40:06,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2020-11-29 18:40:06,423 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2020-11-29 18:40:06,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:40:06,428 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:40:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:07,492 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:19,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:40:19,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 30 states and 54 transitions. [2020-11-29 18:40:19,198 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 54 transitions. [2020-11-29 18:40:19,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:40:19,199 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:40:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:19,705 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:20,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:40:20,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 33 states and 60 transitions. [2020-11-29 18:40:20,243 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 60 transitions. [2020-11-29 18:40:20,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:40:20,244 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:40:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:21,299 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 18:40:29,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:40:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 75 transitions. [2020-11-29 18:40:29,990 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 75 transitions. [2020-11-29 18:40:29,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:40:29,991 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:40:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:30,740 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 18:40:31,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:40:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 40 states and 76 transitions. [2020-11-29 18:40:31,206 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 76 transitions. [2020-11-29 18:40:31,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:40:31,207 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:40:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 18:40:35,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:40:35,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 42 states and 79 transitions. [2020-11-29 18:40:35,368 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 79 transitions. [2020-11-29 18:40:35,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 18:40:35,372 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:40:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:36,491 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-29 18:40:37,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:40:37,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 30 states and 56 transitions. [2020-11-29 18:40:37,486 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 56 transitions. [2020-11-29 18:40:37,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:40:37,487 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-11-29 18:40:37,499 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-29 18:40:37,767 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 24 [2020-11-29 18:40:37,880 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 21 [2020-11-29 18:40:38,111 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 24 [2020-11-29 18:40:38,113 INFO L569 CodeCheckObserver]: Invariant with dag size 24 [2020-11-29 18:40:38,138 INFO L569 CodeCheckObserver]: Invariant with dag size 19 [2020-11-29 18:40:38,140 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 18:40:38,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 06:40:38 ImpRootNode [2020-11-29 18:40:38,141 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 18:40:38,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:40:38,142 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:40:38,142 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:40:38,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:40:01" (3/4) ... [2020-11-29 18:40:38,153 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:40:38,201 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 180 nodes and edges [2020-11-29 18:40:38,203 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-29 18:40:38,206 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 18:40:38,208 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 18:40:38,451 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cedbe769-ad17-427e-b6d0-33c08daa4a89/bin/ukojak/witness.graphml [2020-11-29 18:40:38,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:40:38,454 INFO L168 Benchmark]: Toolchain (without parser) took 99950.13 ms. Allocated memory was 100.7 MB in the beginning and 247.5 MB in the end (delta: 146.8 MB). Free memory was 65.1 MB in the beginning and 158.7 MB in the end (delta: -93.6 MB). Peak memory consumption was 54.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:38,454 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 75.5 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:40:38,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 879.27 ms. Allocated memory is still 100.7 MB. Free memory was 64.9 MB in the beginning and 76.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:38,456 INFO L168 Benchmark]: Boogie Procedure Inliner took 205.94 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 68.6 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:38,456 INFO L168 Benchmark]: Boogie Preprocessor took 193.90 ms. Allocated memory is still 100.7 MB. Free memory was 68.6 MB in the beginning and 63.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:38,457 INFO L168 Benchmark]: RCFGBuilder took 62204.59 ms. Allocated memory was 100.7 MB in the beginning and 169.9 MB in the end (delta: 69.2 MB). Free memory was 63.5 MB in the beginning and 35.1 MB in the end (delta: 28.4 MB). Peak memory consumption was 118.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:38,458 INFO L168 Benchmark]: CodeCheck took 36148.67 ms. Allocated memory was 169.9 MB in the beginning and 247.5 MB in the end (delta: 77.6 MB). Free memory was 34.1 MB in the beginning and 175.4 MB in the end (delta: -141.3 MB). Peak memory consumption was 64.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:38,459 INFO L168 Benchmark]: Witness Printer took 310.08 ms. Allocated memory is still 247.5 MB. Free memory was 175.4 MB in the beginning and 158.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:38,461 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: 35.4s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1676 SDtfs, 3018 SDslu, 2328 SDs, 0 SdLazy, 9738 SolverSat, 1544 SolverUnsat, 64 SolverUnknown, 0 SolverNotchecked, 118.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1128 GetRequests, 978 SyntacticMatches, 60 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4119 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 19064 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 60/122 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((14 == a4 && a12 == 0) && (a19 <= 5 || !(a10 == 2))) || ((0 <= a1 + 12 && 14 == a4) && a12 == 0)) || ((14 == a4 && 7 <= a19) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (14 == a4 && ((!(a19 == 6) || !(a10 == 2)) || 38 < a1)) && a12 == 0 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 75.5 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 879.27 ms. Allocated memory is still 100.7 MB. Free memory was 64.9 MB in the beginning and 76.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 205.94 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 68.6 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 193.90 ms. Allocated memory is still 100.7 MB. Free memory was 68.6 MB in the beginning and 63.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 62204.59 ms. Allocated memory was 100.7 MB in the beginning and 169.9 MB in the end (delta: 69.2 MB). Free memory was 63.5 MB in the beginning and 35.1 MB in the end (delta: 28.4 MB). Peak memory consumption was 118.8 MB. Max. memory is 16.1 GB. * CodeCheck took 36148.67 ms. Allocated memory was 169.9 MB in the beginning and 247.5 MB in the end (delta: 77.6 MB). Free memory was 34.1 MB in the beginning and 175.4 MB in the end (delta: -141.3 MB). Peak memory consumption was 64.2 MB. Max. memory is 16.1 GB. * Witness Printer took 310.08 ms. Allocated memory is still 247.5 MB. Free memory was 175.4 MB in the beginning and 158.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...