./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/signextension2-1.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_2962ce8c-425c-4d6a-afa8-70496720e8e8/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector-regression/signextension2-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/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 9d3668226ea2147b0cf893b67dcf1e3bac955e1b ................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:39:30,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:39:30,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:39:30,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:39:30,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:39:30,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:39:30,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:39:30,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:39:30,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:39:30,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:39:30,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:39:30,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:39:30,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:39:30,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:39:30,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:39:30,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:39:30,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:39:30,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:39:30,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:39:30,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:39:30,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:39:30,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:39:30,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:39:30,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:39:30,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:39:30,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:39:30,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:39:30,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:39:30,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:39:30,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:39:30,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:39:30,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:39:30,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:39:30,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:39:30,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:39:30,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:39:30,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:39:30,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:39:30,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:39:30,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:39:30,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:39:30,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:39:30,275 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:39:30,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:39:30,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:39:30,277 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:39:30,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:39:30,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:39:30,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:39:30,278 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:39:30,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:39:30,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:39:30,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:39:30,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:39:30,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:39:30,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:39:30,280 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:39:30,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:39:30,280 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:39:30,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:39:30,281 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:39:30,281 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:39:30,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:39:30,282 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:39:30,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:39:30,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:39:30,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:39:30,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:39:30,283 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:39:30,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:39:30,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:39:30,283 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_2962ce8c-425c-4d6a-afa8-70496720e8e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d3668226ea2147b0cf893b67dcf1e3bac955e1b [2020-11-28 04:39:30,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:39:30,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:39:30,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:39:30,585 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:39:30,588 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:39:30,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/bin/ukojak/../../sv-benchmarks/c/bitvector-regression/signextension2-1.c [2020-11-28 04:39:30,665 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/bin/ukojak/data/f74a93c38/684636a0e830485db1b29fc5376a8199/FLAGd0fc0605f [2020-11-28 04:39:31,087 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:39:31,087 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/sv-benchmarks/c/bitvector-regression/signextension2-1.c [2020-11-28 04:39:31,098 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/bin/ukojak/data/f74a93c38/684636a0e830485db1b29fc5376a8199/FLAGd0fc0605f [2020-11-28 04:39:31,477 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/bin/ukojak/data/f74a93c38/684636a0e830485db1b29fc5376a8199 [2020-11-28 04:39:31,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:39:31,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:39:31,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:31,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:39:31,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:39:31,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750f4f3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31, skipping insertion in model container [2020-11-28 04:39:31,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:39:31,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:39:31,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:31,735 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:39:31,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:31,763 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:39:31,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31 WrapperNode [2020-11-28 04:39:31,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:31,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:31,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:39:31,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:39:31,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:31,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:39:31,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:39:31,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:39:31,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:39:31,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:39:31,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:39:31,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:39:31,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/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 [2020-11-28 04:39:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:39:31,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:39:31,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:39:31,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:39:32,098 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:39:32,098 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:39:32,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:32 BoogieIcfgContainer [2020-11-28 04:39:32,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:39:32,101 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:39:32,102 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:39:32,113 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:39:32,113 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:32" (1/1) ... [2020-11-28 04:39:32,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:39:32,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:32,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-11-28 04:39:32,157 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-11-28 04:39:32,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:39:32,159 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:32,588 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 24 [2020-11-28 04:39:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:32,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:32,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2020-11-28 04:39:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2020-11-28 04:39:32,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:39:32,641 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2020-11-28 04:39:32,651 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:39:32,691 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:39:32,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:39:32 ImpRootNode [2020-11-28 04:39:32,696 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:39:32,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:39:32,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:39:32,700 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:39:32,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:32" (3/4) ... [2020-11-28 04:39:32,704 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:39:32,717 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-28 04:39:32,717 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 04:39:32,717 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:39:32,717 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:39:32,764 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2962ce8c-425c-4d6a-afa8-70496720e8e8/bin/ukojak/witness.graphml [2020-11-28 04:39:32,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:39:32,769 INFO L168 Benchmark]: Toolchain (without parser) took 1287.11 ms. Allocated memory is still 102.8 MB. Free memory was 67.8 MB in the beginning and 41.2 MB in the end (delta: 26.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:32,771 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 102.8 MB. Free memory was 75.6 MB in the beginning and 75.6 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:32,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.41 ms. Allocated memory is still 102.8 MB. Free memory was 67.5 MB in the beginning and 79.5 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:32,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.23 ms. Allocated memory is still 102.8 MB. Free memory was 79.5 MB in the beginning and 78.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:32,775 INFO L168 Benchmark]: Boogie Preprocessor took 15.85 ms. Allocated memory is still 102.8 MB. Free memory was 78.4 MB in the beginning and 77.4 MB in the end (delta: 998.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:32,780 INFO L168 Benchmark]: RCFGBuilder took 281.37 ms. Allocated memory is still 102.8 MB. Free memory was 77.4 MB in the beginning and 65.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:32,782 INFO L168 Benchmark]: CodeCheck took 594.60 ms. Allocated memory is still 102.8 MB. Free memory was 65.4 MB in the beginning and 43.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:32,783 INFO L168 Benchmark]: Witness Printer took 67.54 ms. Allocated memory is still 102.8 MB. Free memory was 43.3 MB in the beginning and 41.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:32,786 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, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 3]: 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: 5]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 102.8 MB. Free memory was 75.6 MB in the beginning and 75.6 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 281.41 ms. Allocated memory is still 102.8 MB. Free memory was 67.5 MB in the beginning and 79.5 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.23 ms. Allocated memory is still 102.8 MB. Free memory was 79.5 MB in the beginning and 78.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.85 ms. Allocated memory is still 102.8 MB. Free memory was 78.4 MB in the beginning and 77.4 MB in the end (delta: 998.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 281.37 ms. Allocated memory is still 102.8 MB. Free memory was 77.4 MB in the beginning and 65.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 594.60 ms. Allocated memory is still 102.8 MB. Free memory was 65.4 MB in the beginning and 43.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 67.54 ms. Allocated memory is still 102.8 MB. Free memory was 43.3 MB in the beginning and 41.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...