./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label40.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_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label40.c -s /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/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 92a0366739b54f5786fd81f9c3804cb2d83d614e ......................................................................................................................................................................................................................................................................... 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 20:26:34,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:26:34,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:26:34,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:26:35,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:26:35,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:26:35,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:26:35,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:26:35,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:26:35,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:26:35,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:26:35,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:26:35,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:26:35,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:26:35,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:26:35,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:26:35,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:26:35,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:26:35,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:26:35,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:26:35,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:26:35,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:26:35,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:26:35,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:26:35,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:26:35,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:26:35,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:26:35,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:26:35,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:26:35,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:26:35,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:26:35,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:26:35,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:26:35,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:26:35,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:26:35,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:26:35,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:26:35,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:26:35,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:26:35,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:26:35,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:26:35,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 20:26:35,150 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:26:35,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:26:35,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 20:26:35,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 20:26:35,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:26:35,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:26:35,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:26:35,155 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:26:35,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:26:35,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:26:35,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:26:35,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:26:35,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:26:35,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:26:35,157 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:26:35,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:26:35,157 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:26:35,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:26:35,158 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 20:26:35,158 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 20:26:35,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:26:35,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:26:35,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 20:26:35,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:26:35,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:26:35,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:26:35,161 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 20:26:35,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:26:35,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:26:35,162 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_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92a0366739b54f5786fd81f9c3804cb2d83d614e [2020-11-29 20:26:35,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:26:35,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:26:35,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:26:35,556 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:26:35,557 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:26:35,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem10_label40.c [2020-11-29 20:26:35,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/bin/ukojak/data/edeec3b3d/ebc98b915a654a0f906851cb2fefe7fe/FLAG192eb325d [2020-11-29 20:26:36,625 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:26:36,628 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/sv-benchmarks/c/eca-rers2012/Problem10_label40.c [2020-11-29 20:26:36,655 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/bin/ukojak/data/edeec3b3d/ebc98b915a654a0f906851cb2fefe7fe/FLAG192eb325d [2020-11-29 20:26:36,806 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/bin/ukojak/data/edeec3b3d/ebc98b915a654a0f906851cb2fefe7fe [2020-11-29 20:26:36,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:26:36,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:26:36,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:26:36,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:26:36,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:26:36,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:26:36" (1/1) ... [2020-11-29 20:26:36,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d777ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:36, skipping insertion in model container [2020-11-29 20:26:36,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:26:36" (1/1) ... [2020-11-29 20:26:36,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:26:36,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:26:37,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:26:37,541 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:26:37,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:26:37,826 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:26:37,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:37 WrapperNode [2020-11-29 20:26:37,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:26:37,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:26:37,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:26:37,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:26:37,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:37" (1/1) ... [2020-11-29 20:26:37,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:37" (1/1) ... [2020-11-29 20:26:37,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:26:37,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:26:37,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:26:37,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:26:37,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:37" (1/1) ... [2020-11-29 20:26:37,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:37" (1/1) ... [2020-11-29 20:26:38,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:37" (1/1) ... [2020-11-29 20:26:38,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:37" (1/1) ... [2020-11-29 20:26:38,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:37" (1/1) ... [2020-11-29 20:26:38,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:37" (1/1) ... [2020-11-29 20:26:38,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:37" (1/1) ... [2020-11-29 20:26:38,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:26:38,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:26:38,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:26:38,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:26:38,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/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 20:26:38,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:26:38,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:26:38,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:26:38,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:27:36,634 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:27:36,635 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 20:27:36,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:27:36 BoogieIcfgContainer [2020-11-29 20:27:36,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:27:36,638 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 20:27:36,638 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 20:27:36,651 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 20:27:36,651 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:27:36" (1/1) ... [2020-11-29 20:27:36,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:27:36,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:36,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-11-29 20:27:36,715 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-11-29 20:27:36,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 20:27:36,719 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:37,030 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 20:27:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-29 20:27:37,172 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-29 20:27:37,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 20:27:37,173 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:38,016 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 20:27:38,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:38,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2020-11-29 20:27:38,786 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2020-11-29 20:27:38,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 20:27:38,789 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:40,059 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 20:27:41,107 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 29 [2020-11-29 20:27:41,362 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2020-11-29 20:27:42,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:42,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 29 states and 52 transitions. [2020-11-29 20:27:42,068 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 52 transitions. [2020-11-29 20:27:42,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 20:27:42,070 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:42,728 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 20:27:43,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:43,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 32 states and 57 transitions. [2020-11-29 20:27:43,455 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 57 transitions. [2020-11-29 20:27:43,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 20:27:43,456 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-29 20:27:45,258 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-11-29 20:27:45,680 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-11-29 20:27:46,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:46,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 38 states and 67 transitions. [2020-11-29 20:27:46,043 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 67 transitions. [2020-11-29 20:27:46,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 20:27:46,044 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:46,671 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-29 20:27:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:47,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 39 states and 68 transitions. [2020-11-29 20:27:47,083 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 68 transitions. [2020-11-29 20:27:47,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 20:27:47,084 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:47,734 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-29 20:27:48,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:48,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 29 states and 52 transitions. [2020-11-29 20:27:48,271 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 52 transitions. [2020-11-29 20:27:48,272 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:27:48,272 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-11-29 20:27:48,282 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-29 20:27:48,516 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 24 [2020-11-29 20:27:48,761 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 26 [2020-11-29 20:27:49,026 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 26 [2020-11-29 20:27:49,029 INFO L569 CodeCheckObserver]: Invariant with dag size 24 [2020-11-29 20:27:49,043 INFO L569 CodeCheckObserver]: Invariant with dag size 26 [2020-11-29 20:27:49,045 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 20:27:49,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 08:27:49 ImpRootNode [2020-11-29 20:27:49,047 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 20:27:49,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:27:49,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:27:49,048 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:27:49,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:27:36" (3/4) ... [2020-11-29 20:27:49,053 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:27:49,084 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 180 nodes and edges [2020-11-29 20:27:49,086 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-29 20:27:49,089 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-29 20:27:49,091 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-29 20:27:49,339 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_75ad4241-deeb-4fb6-97ee-c3e0c0ee953b/bin/ukojak/witness.graphml [2020-11-29 20:27:49,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:27:49,341 INFO L168 Benchmark]: Toolchain (without parser) took 72524.98 ms. Allocated memory was 83.9 MB in the beginning and 270.5 MB in the end (delta: 186.6 MB). Free memory was 51.2 MB in the beginning and 92.5 MB in the end (delta: -41.4 MB). Peak memory consumption was 144.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:49,342 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 83.9 MB. Free memory was 43.2 MB in the beginning and 43.1 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:27:49,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1006.25 ms. Allocated memory is still 83.9 MB. Free memory was 51.0 MB in the beginning and 45.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:49,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 153.09 ms. Allocated memory is still 83.9 MB. Free memory was 45.4 MB in the beginning and 37.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:49,344 INFO L168 Benchmark]: Boogie Preprocessor took 180.59 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 37.6 MB in the beginning and 74.1 MB in the end (delta: -36.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:49,345 INFO L168 Benchmark]: RCFGBuilder took 58466.29 ms. Allocated memory was 100.7 MB in the beginning and 224.4 MB in the end (delta: 123.7 MB). Free memory was 74.1 MB in the beginning and 135.7 MB in the end (delta: -61.6 MB). Peak memory consumption was 155.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:49,346 INFO L168 Benchmark]: CodeCheck took 12408.66 ms. Allocated memory was 224.4 MB in the beginning and 270.5 MB in the end (delta: 46.1 MB). Free memory was 135.7 MB in the beginning and 109.3 MB in the end (delta: 26.4 MB). Peak memory consumption was 72.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:49,346 INFO L168 Benchmark]: Witness Printer took 291.99 ms. Allocated memory is still 270.5 MB. Free memory was 108.3 MB in the beginning and 92.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:49,349 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: 11.5s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 836 SDtfs, 1600 SDslu, 1160 SDs, 0 SdLazy, 4660 SolverSat, 688 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 873 GetRequests, 752 SyntacticMatches, 49 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2915 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 16008 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 54/86 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: (((((a1 + 13 <= 0 || a19 <= 7) || !(a10 == 0)) || 38 < a1) && 14 == a4) && a12 == 0) || ((9 <= a19 && 14 == a4) && a12 == 0) - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((a19 <= 7 && 14 == a4) && a12 == 0) || (((a1 + 13 <= 0 || 38 < a1) && 14 == a4) && a12 == 0)) || ((!(a10 == 0) && 14 == a4) && a12 == 0)) || ((9 <= a19 && 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 0.42 ms. Allocated memory is still 83.9 MB. Free memory was 43.2 MB in the beginning and 43.1 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1006.25 ms. Allocated memory is still 83.9 MB. Free memory was 51.0 MB in the beginning and 45.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 153.09 ms. Allocated memory is still 83.9 MB. Free memory was 45.4 MB in the beginning and 37.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 180.59 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 37.6 MB in the beginning and 74.1 MB in the end (delta: -36.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 58466.29 ms. Allocated memory was 100.7 MB in the beginning and 224.4 MB in the end (delta: 123.7 MB). Free memory was 74.1 MB in the beginning and 135.7 MB in the end (delta: -61.6 MB). Peak memory consumption was 155.5 MB. Max. memory is 16.1 GB. * CodeCheck took 12408.66 ms. Allocated memory was 224.4 MB in the beginning and 270.5 MB in the end (delta: 46.1 MB). Free memory was 135.7 MB in the beginning and 109.3 MB in the end (delta: 26.4 MB). Peak memory consumption was 72.5 MB. Max. memory is 16.1 GB. * Witness Printer took 291.99 ms. Allocated memory is still 270.5 MB. Free memory was 108.3 MB in the beginning and 92.5 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...