./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label54.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_249e3b2d-24bd-429a-be9f-281beaf0d0ff/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label54.c -s /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/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 fe7c72dc6c69dc89ca79e813e8198cc29c1edb75 .............................................................................................................................................................................................................................................................................. 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 17:53:11,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:53:11,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:53:11,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:53:11,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:53:11,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:53:11,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:53:11,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:53:11,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:53:11,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:53:11,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:53:11,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:53:11,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:53:11,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:53:11,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:53:11,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:53:11,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:53:11,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:53:11,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:53:11,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:53:11,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:53:11,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:53:11,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:53:11,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:53:11,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:53:11,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:53:11,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:53:11,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:53:11,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:53:11,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:53:11,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:53:11,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:53:11,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:53:11,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:53:11,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:53:11,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:53:11,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:53:11,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:53:11,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:53:11,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:53:11,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:53:11,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:53:11,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:53:11,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:53:11,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:53:11,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:53:11,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:53:11,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:53:11,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:53:11,249 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:53:11,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:53:11,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:53:11,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:53:11,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:53:11,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:53:11,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:53:11,251 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:53:11,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:53:11,251 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:53:11,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:53:11,252 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:53:11,252 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:53:11,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:53:11,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:53:11,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:53:11,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:53:11,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:53:11,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:53:11,254 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:53:11,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:53:11,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:53:11,255 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_249e3b2d-24bd-429a-be9f-281beaf0d0ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe7c72dc6c69dc89ca79e813e8198cc29c1edb75 [2020-12-01 17:53:11,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:53:11,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:53:11,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:53:11,693 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:53:11,694 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:53:11,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem10_label54.c [2020-12-01 17:53:11,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/bin/ukojak/data/800a2d273/5c1b105cf0a04365ac614a37c4c7dc84/FLAGf8657f31f [2020-12-01 17:53:12,721 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:53:12,722 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/sv-benchmarks/c/eca-rers2012/Problem10_label54.c [2020-12-01 17:53:12,738 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/bin/ukojak/data/800a2d273/5c1b105cf0a04365ac614a37c4c7dc84/FLAGf8657f31f [2020-12-01 17:53:12,877 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/bin/ukojak/data/800a2d273/5c1b105cf0a04365ac614a37c4c7dc84 [2020-12-01 17:53:12,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:53:12,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:53:12,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:53:12,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:53:12,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:53:12,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:53:12" (1/1) ... [2020-12-01 17:53:12,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51651ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:53:12, skipping insertion in model container [2020-12-01 17:53:12,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:53:12" (1/1) ... [2020-12-01 17:53:12,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:53:13,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:53:13,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:53:13,628 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:53:13,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:53:13,806 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:53:13,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:53:13 WrapperNode [2020-12-01 17:53:13,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:53:13,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:53:13,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:53:13,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:53:13,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:53:13" (1/1) ... [2020-12-01 17:53:13,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:53:13" (1/1) ... [2020-12-01 17:53:13,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:53:13,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:53:13,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:53:13,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:53:13,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:53:13" (1/1) ... [2020-12-01 17:53:13,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:53:13" (1/1) ... [2020-12-01 17:53:13,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:53:13" (1/1) ... [2020-12-01 17:53:13,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:53:13" (1/1) ... [2020-12-01 17:53:14,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:53:13" (1/1) ... [2020-12-01 17:53:14,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:53:13" (1/1) ... [2020-12-01 17:53:14,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:53:13" (1/1) ... [2020-12-01 17:53:14,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:53:14,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:53:14,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:53:14,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:53:14,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:53:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/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 17:53:14,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:53:14,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:53:14,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:53:14,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:53:26,074 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:53:26,074 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 17:53:26,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:53:26 BoogieIcfgContainer [2020-12-01 17:53:26,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:53:26,080 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:53:26,080 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:53:26,093 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:53:26,093 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:53:26" (1/1) ... [2020-12-01 17:53:26,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:53:26,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:53:26,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 17:53:26,157 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 17:53:26,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:53:26,161 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:53:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:53:26,413 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 17:53:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:53:26,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 17:53:26,576 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 17:53:26,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:53:26,576 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:53:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:53:27,265 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 17:53:28,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:53:28,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2020-12-01 17:53:28,273 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2020-12-01 17:53:28,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:53:28,277 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:53:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:53:29,791 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 17:53:31,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:53:31,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 30 states and 55 transitions. [2020-12-01 17:53:31,666 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 55 transitions. [2020-12-01 17:53:31,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:53:31,667 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:53:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:53:32,379 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 17:53:32,506 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2020-12-01 17:53:33,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:53:33,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 33 states and 61 transitions. [2020-12-01 17:53:33,208 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2020-12-01 17:53:33,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:53:33,210 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:53:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:53:34,297 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 17:53:36,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:53:36,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 75 transitions. [2020-12-01 17:53:36,020 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 75 transitions. [2020-12-01 17:53:36,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:53:36,021 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:53:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:53:36,708 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 17:53:36,871 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-12-01 17:53:37,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:53:37,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 40 states and 76 transitions. [2020-12-01 17:53:37,266 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 76 transitions. [2020-12-01 17:53:37,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:53:37,268 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:53:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:53:37,999 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 17:53:38,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:53:38,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 42 states and 78 transitions. [2020-12-01 17:53:38,534 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 78 transitions. [2020-12-01 17:53:38,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 17:53:38,538 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:53:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:53:39,535 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 17:53:40,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:53:40,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 30 states and 56 transitions. [2020-12-01 17:53:40,562 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 56 transitions. [2020-12-01 17:53:40,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:53:40,563 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-12-01 17:53:40,571 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 17:53:40,797 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 23 [2020-12-01 17:53:41,021 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 16 [2020-12-01 17:53:41,219 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 23 [2020-12-01 17:53:41,221 INFO L569 CodeCheckObserver]: Invariant with dag size 23 [2020-12-01 17:53:41,235 INFO L569 CodeCheckObserver]: Invariant with dag size 19 [2020-12-01 17:53:41,237 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:53:41,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:53:41 ImpRootNode [2020-12-01 17:53:41,238 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:53:41,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:53:41,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:53:41,240 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:53:41,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:53:26" (3/4) ... [2020-12-01 17:53:41,245 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:53:41,284 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 180 nodes and edges [2020-12-01 17:53:41,287 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-01 17:53:41,290 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 17:53:41,292 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 17:53:41,514 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_249e3b2d-24bd-429a-be9f-281beaf0d0ff/bin/ukojak/witness.graphml [2020-12-01 17:53:41,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:53:41,516 INFO L168 Benchmark]: Toolchain (without parser) took 28630.61 ms. Allocated memory was 96.5 MB in the beginning and 1.1 GB in the end (delta: 962.6 MB). Free memory was 60.8 MB in the beginning and 442.6 MB in the end (delta: -381.8 MB). Peak memory consumption was 580.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:53:41,518 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 96.5 MB. Free memory was 68.6 MB in the beginning and 68.6 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:53:41,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 915.25 ms. Allocated memory is still 96.5 MB. Free memory was 60.6 MB in the beginning and 56.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 17:53:41,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.27 ms. Allocated memory is still 96.5 MB. Free memory was 56.4 MB in the beginning and 48.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:53:41,519 INFO L168 Benchmark]: Boogie Preprocessor took 88.85 ms. Allocated memory is still 96.5 MB. Free memory was 48.4 MB in the beginning and 43.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:53:41,520 INFO L168 Benchmark]: RCFGBuilder took 12039.32 ms. Allocated memory was 96.5 MB in the beginning and 566.2 MB in the end (delta: 469.8 MB). Free memory was 43.2 MB in the beginning and 416.0 MB in the end (delta: -372.7 MB). Peak memory consumption was 159.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:53:41,521 INFO L168 Benchmark]: CodeCheck took 15158.71 ms. Allocated memory was 566.2 MB in the beginning and 1.1 GB in the end (delta: 492.8 MB). Free memory was 416.0 MB in the beginning and 458.3 MB in the end (delta: -42.3 MB). Peak memory consumption was 450.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:53:41,522 INFO L168 Benchmark]: Witness Printer took 275.72 ms. Allocated memory is still 1.1 GB. Free memory was 458.3 MB in the beginning and 442.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 17:53:41,525 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: 14.4s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1676 SDtfs, 3066 SDslu, 2328 SDs, 0 SdLazy, 9918 SolverSat, 1528 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1132 GetRequests, 987 SyntacticMatches, 55 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3541 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 18216 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: (((!(a10 == 3) && 14 == a4) && a12 == 0) || ((14 == a4 && a12 == 0) && (a19 <= 7 || 9 <= a19))) || ((a1 <= 218 && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((9 <= a19 && 14 == a4) && a12 == 0) || (((a19 <= 7 || !(a10 == 3)) && 14 == a4) && 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 0.49 ms. Allocated memory is still 96.5 MB. Free memory was 68.6 MB in the beginning and 68.6 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 915.25 ms. Allocated memory is still 96.5 MB. Free memory was 60.6 MB in the beginning and 56.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 140.27 ms. Allocated memory is still 96.5 MB. Free memory was 56.4 MB in the beginning and 48.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.85 ms. Allocated memory is still 96.5 MB. Free memory was 48.4 MB in the beginning and 43.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12039.32 ms. Allocated memory was 96.5 MB in the beginning and 566.2 MB in the end (delta: 469.8 MB). Free memory was 43.2 MB in the beginning and 416.0 MB in the end (delta: -372.7 MB). Peak memory consumption was 159.5 MB. Max. memory is 16.1 GB. * CodeCheck took 15158.71 ms. Allocated memory was 566.2 MB in the beginning and 1.1 GB in the end (delta: 492.8 MB). Free memory was 416.0 MB in the beginning and 458.3 MB in the end (delta: -42.3 MB). Peak memory consumption was 450.5 MB. Max. memory is 16.1 GB. * Witness Printer took 275.72 ms. Allocated memory is still 1.1 GB. Free memory was 458.3 MB in the beginning and 442.6 MB in the end (delta: 15.7 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...