./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label16.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_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label16.c -s /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/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 e305164f412eb6cd5630918171ad02eb287ac8bc ........................................................................................................................................................................................................................................................................... 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 16:29:20,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:29:20,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:29:20,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:29:20,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:29:20,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:29:20,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:29:20,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:29:20,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:29:20,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:29:20,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:29:20,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:29:20,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:29:20,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:29:20,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:29:20,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:29:20,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:29:20,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:29:20,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:29:20,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:29:20,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:29:20,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:29:20,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:29:20,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:29:20,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:29:20,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:29:20,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:29:20,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:29:20,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:29:20,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:29:20,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:29:20,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:29:20,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:29:20,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:29:20,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:29:20,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:29:20,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:29:20,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:29:20,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:29:20,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:29:20,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:29:20,762 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:29:20,815 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:29:20,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:29:20,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:29:20,820 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:29:20,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:29:20,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:29:20,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:29:20,822 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:29:20,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:29:20,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:29:20,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:29:20,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:29:20,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:29:20,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:29:20,825 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:29:20,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:29:20,826 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:29:20,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:29:20,826 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:29:20,827 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:29:20,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:29:20,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:29:20,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:29:20,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:29:20,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:29:20,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:29:20,829 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:29:20,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:29:20,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:29:20,830 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_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e305164f412eb6cd5630918171ad02eb287ac8bc [2020-12-01 16:29:21,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:29:21,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:29:21,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:29:21,199 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:29:21,200 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:29:21,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem10_label16.c [2020-12-01 16:29:21,309 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/bin/ukojak/data/bb18d977d/cb70e8e5b4054c2daf42b5cc9eca6d48/FLAG75c642f96 [2020-12-01 16:29:21,829 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:29:21,830 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/sv-benchmarks/c/eca-rers2012/Problem10_label16.c [2020-12-01 16:29:21,842 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/bin/ukojak/data/bb18d977d/cb70e8e5b4054c2daf42b5cc9eca6d48/FLAG75c642f96 [2020-12-01 16:29:22,115 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/bin/ukojak/data/bb18d977d/cb70e8e5b4054c2daf42b5cc9eca6d48 [2020-12-01 16:29:22,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:29:22,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:29:22,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:29:22,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:29:22,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:29:22,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:29:22" (1/1) ... [2020-12-01 16:29:22,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f874fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:22, skipping insertion in model container [2020-12-01 16:29:22,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:29:22" (1/1) ... [2020-12-01 16:29:22,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:29:22,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:29:22,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:29:22,624 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:29:22,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:29:22,893 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:29:22,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:22 WrapperNode [2020-12-01 16:29:22,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:29:22,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:29:22,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:29:22,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:29:22,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:22" (1/1) ... [2020-12-01 16:29:22,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:22" (1/1) ... [2020-12-01 16:29:22,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:29:22,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:29:22,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:29:23,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:29:23,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:22" (1/1) ... [2020-12-01 16:29:23,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:22" (1/1) ... [2020-12-01 16:29:23,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:22" (1/1) ... [2020-12-01 16:29:23,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:22" (1/1) ... [2020-12-01 16:29:23,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:22" (1/1) ... [2020-12-01 16:29:23,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:22" (1/1) ... [2020-12-01 16:29:23,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:22" (1/1) ... [2020-12-01 16:29:23,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:29:23,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:29:23,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:29:23,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:29:23,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/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 16:29:23,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:29:23,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:29:23,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:29:23,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:29:33,695 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:29:33,695 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 16:29:33,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:29:33 BoogieIcfgContainer [2020-12-01 16:29:33,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:29:33,700 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:29:33,700 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:29:33,710 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:29:33,710 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:29:33" (1/1) ... [2020-12-01 16:29:33,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:29:33,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:33,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 16:29:33,749 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 16:29:33,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:29:33,751 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:33,969 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 16:29:34,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:34,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 16:29:34,062 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 16:29:34,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:29:34,063 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:34,549 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 16:29:34,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:34,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2020-12-01 16:29:34,879 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2020-12-01 16:29:34,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:29:34,882 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:35,883 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 16:29:37,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:37,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 26 states and 43 transitions. [2020-12-01 16:29:37,038 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 43 transitions. [2020-12-01 16:29:37,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:29:37,039 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:37,528 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 16:29:37,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:37,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2020-12-01 16:29:37,780 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2020-12-01 16:29:37,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:29:37,781 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:38,527 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-01 16:29:39,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:39,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 35 states and 61 transitions. [2020-12-01 16:29:39,398 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 61 transitions. [2020-12-01 16:29:39,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:29:39,400 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:40,145 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-01 16:29:40,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 38 states and 64 transitions. [2020-12-01 16:29:40,563 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 64 transitions. [2020-12-01 16:29:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:29:40,564 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:41,250 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-01 16:29:41,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:41,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 39 states and 65 transitions. [2020-12-01 16:29:41,681 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 65 transitions. [2020-12-01 16:29:41,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:29:41,682 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:42,495 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-01 16:29:43,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:43,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 26 states and 44 transitions. [2020-12-01 16:29:43,228 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 44 transitions. [2020-12-01 16:29:43,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:29:43,229 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-12-01 16:29:43,237 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:29:43,425 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 27 [2020-12-01 16:29:43,640 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 27 [2020-12-01 16:29:43,641 INFO L569 CodeCheckObserver]: Invariant with dag size 19 [2020-12-01 16:29:43,659 INFO L569 CodeCheckObserver]: Invariant with dag size 27 [2020-12-01 16:29:43,663 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:29:43,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:29:43 ImpRootNode [2020-12-01 16:29:43,667 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:29:43,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:29:43,670 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:29:43,670 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:29:43,671 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:29:33" (3/4) ... [2020-12-01 16:29:43,675 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:29:43,729 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 179 nodes and edges [2020-12-01 16:29:43,735 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-01 16:29:43,736 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 16:29:43,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 16:29:43,913 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_20ad31a2-1b64-4c3d-b181-8fdc6b31060b/bin/ukojak/witness.graphml [2020-12-01 16:29:43,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:29:43,915 INFO L168 Benchmark]: Toolchain (without parser) took 21795.33 ms. Allocated memory was 94.4 MB in the beginning and 721.4 MB in the end (delta: 627.0 MB). Free memory was 64.8 MB in the beginning and 414.4 MB in the end (delta: -349.6 MB). Peak memory consumption was 277.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:43,915 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 94.4 MB. Free memory is still 52.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:29:43,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.58 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 54.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:43,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.20 ms. Allocated memory is still 94.4 MB. Free memory was 54.1 MB in the beginning and 46.4 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:43,917 INFO L168 Benchmark]: Boogie Preprocessor took 130.33 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 46.4 MB in the beginning and 83.0 MB in the end (delta: -36.6 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:43,918 INFO L168 Benchmark]: RCFGBuilder took 10569.17 ms. Allocated memory was 113.2 MB in the beginning and 398.5 MB in the end (delta: 285.2 MB). Free memory was 83.0 MB in the beginning and 210.5 MB in the end (delta: -127.5 MB). Peak memory consumption was 199.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:43,919 INFO L168 Benchmark]: CodeCheck took 9967.54 ms. Allocated memory was 398.5 MB in the beginning and 721.4 MB in the end (delta: 323.0 MB). Free memory was 210.5 MB in the beginning and 430.1 MB in the end (delta: -219.6 MB). Peak memory consumption was 104.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:43,919 INFO L168 Benchmark]: Witness Printer took 246.12 ms. Allocated memory is still 721.4 MB. Free memory was 430.1 MB in the beginning and 414.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:43,921 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: 9.5s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1560 SDtfs, 2992 SDslu, 2096 SDs, 0 SdLazy, 8054 SolverSat, 1118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1067 GetRequests, 940 SyntacticMatches, 57 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2181 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 19276 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: 30]: Loop Invariant Derived loop invariant: (14 == a4 && a12 == 0) && ((218 < a1 || !(a10 == 4)) || !(a19 == 6)) - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((14 == a4 && a12 == 0) && (!(a10 == 4) || a19 <= 5)) || ((14 == a4 && 7 <= a19) && a12 == 0)) || ((14 == a4 && (a1 + 333899 <= 0 || 218 <= 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 0.35 ms. Allocated memory is still 94.4 MB. Free memory is still 52.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 773.58 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 54.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.20 ms. Allocated memory is still 94.4 MB. Free memory was 54.1 MB in the beginning and 46.4 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 130.33 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 46.4 MB in the beginning and 83.0 MB in the end (delta: -36.6 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10569.17 ms. Allocated memory was 113.2 MB in the beginning and 398.5 MB in the end (delta: 285.2 MB). Free memory was 83.0 MB in the beginning and 210.5 MB in the end (delta: -127.5 MB). Peak memory consumption was 199.2 MB. Max. memory is 16.1 GB. * CodeCheck took 9967.54 ms. Allocated memory was 398.5 MB in the beginning and 721.4 MB in the end (delta: 323.0 MB). Free memory was 210.5 MB in the beginning and 430.1 MB in the end (delta: -219.6 MB). Peak memory consumption was 104.4 MB. Max. memory is 16.1 GB. * Witness Printer took 246.12 ms. Allocated memory is still 721.4 MB. Free memory was 430.1 MB in the beginning and 414.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...