./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 595e0ffd0ff086ae45c2b9536863374b9b9c0fb6 ................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:44:38,626 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:44:38,627 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:44:38,648 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:44:38,650 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:44:38,651 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:44:38,655 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:44:38,662 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:44:38,664 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:44:38,667 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:44:38,669 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:44:38,670 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:44:38,671 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:44:38,674 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:44:38,681 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:44:38,682 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:44:38,683 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:44:38,685 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:44:38,692 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:44:38,693 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:44:38,694 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:44:38,695 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:44:38,698 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:44:38,698 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:44:38,698 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:44:38,699 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:44:38,700 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:44:38,701 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:44:38,702 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:44:38,703 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:44:38,704 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:44:38,704 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:44:38,704 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:44:38,705 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:44:38,706 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:44:38,707 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:44:38,707 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 21:44:38,721 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:44:38,721 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:44:38,722 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:44:38,722 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 21:44:38,723 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 21:44:38,723 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 21:44:38,723 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:44:38,723 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:44:38,724 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:44:38,724 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:44:38,724 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:44:38,724 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:44:38,724 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:44:38,725 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:44:38,725 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:44:38,727 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:44:38,727 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:44:38,727 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 21:44:38,727 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 21:44:38,727 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:44:38,728 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:44:38,728 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 21:44:38,728 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:44:38,728 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:44:38,728 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:44:38,729 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 21:44:38,729 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:44:38,729 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:44:38,729 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/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(__VERIFIER_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 -> 595e0ffd0ff086ae45c2b9536863374b9b9c0fb6 [2018-10-26 21:44:38,762 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:44:38,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:44:38,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:44:38,781 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:44:38,782 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:44:38,783 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/ukojak/../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-10-26 21:44:38,847 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/ukojak/data/ac91e5021/e533140679194a8087b01d92b990ba87/FLAG207b04443 [2018-10-26 21:44:39,214 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:44:39,214 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-10-26 21:44:39,221 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/ukojak/data/ac91e5021/e533140679194a8087b01d92b990ba87/FLAG207b04443 [2018-10-26 21:44:39,233 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/ukojak/data/ac91e5021/e533140679194a8087b01d92b990ba87 [2018-10-26 21:44:39,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:44:39,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:44:39,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:44:39,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:44:39,243 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:44:39,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:44:39" (1/1) ... [2018-10-26 21:44:39,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608de32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:39, skipping insertion in model container [2018-10-26 21:44:39,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:44:39" (1/1) ... [2018-10-26 21:44:39,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:44:39,274 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:44:39,421 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:44:39,424 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:44:39,437 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:44:39,451 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:44:39,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:39 WrapperNode [2018-10-26 21:44:39,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:44:39,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:44:39,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:44:39,453 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:44:39,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:39" (1/1) ... [2018-10-26 21:44:39,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:39" (1/1) ... [2018-10-26 21:44:39,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:44:39,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:44:39,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:44:39,486 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:44:39,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:39" (1/1) ... [2018-10-26 21:44:39,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:39" (1/1) ... [2018-10-26 21:44:39,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:39" (1/1) ... [2018-10-26 21:44:39,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:39" (1/1) ... [2018-10-26 21:44:39,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:39" (1/1) ... [2018-10-26 21:44:39,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:39" (1/1) ... [2018-10-26 21:44:39,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:39" (1/1) ... [2018-10-26 21:44:39,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:44:39,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:44:39,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:44:39,503 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:44:39,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/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 [2018-10-26 21:44:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:44:39,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:44:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 21:44:39,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 21:44:40,051 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:44:40,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:44:40 BoogieIcfgContainer [2018-10-26 21:44:40,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:44:40,052 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 21:44:40,052 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 21:44:40,085 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 21:44:40,085 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:44:40" (1/1) ... [2018-10-26 21:44:40,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:44:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:44:40,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2018-10-26 21:44:40,197 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2018-10-26 21:44:40,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-26 21:44:40,200 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:44:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:44:40,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:44:40,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:44:40,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2018-10-26 21:44:40,583 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2018-10-26 21:44:40,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 21:44:40,588 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:44:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:44:41,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:44:41,248 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 7 [2018-10-26 21:44:41,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:44:41,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2018-10-26 21:44:41,950 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2018-10-26 21:44:41,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 21:44:41,950 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:44:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:44:42,009 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:44:42,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:44:42,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2018-10-26 21:44:42,210 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2018-10-26 21:44:42,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 21:44:42,213 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:44:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:44:42,290 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-26 21:44:42,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:44:42,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 34 transitions. [2018-10-26 21:44:42,364 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2018-10-26 21:44:42,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-26 21:44:42,365 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:44:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:44:42,425 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-26 21:44:42,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:44:42,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 33 transitions. [2018-10-26 21:44:42,502 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2018-10-26 21:44:42,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-26 21:44:42,503 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:44:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:44:42,555 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-26 21:44:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:44:42,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 32 states and 40 transitions. [2018-10-26 21:44:42,743 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2018-10-26 21:44:42,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-26 21:44:42,744 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 21:44:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:44:42,850 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-10-26 21:44:42,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 21:44:42,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 22 states and 27 transitions. [2018-10-26 21:44:42,932 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2018-10-26 21:44:42,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:44:42,932 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2018-10-26 21:44:42,940 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-10-26 21:44:43,004 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 21:44:43,006 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 21:44:43,007 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 21:44:43,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 09:44:43 ImpRootNode [2018-10-26 21:44:43,007 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 21:44:43,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:44:43,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:44:43,008 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:44:43,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:44:40" (3/4) ... [2018-10-26 21:44:43,013 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 21:44:43,021 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 21:44:43,025 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-10-26 21:44:43,025 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 21:44:43,025 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-26 21:44:43,074 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8c34eb59-f713-4750-aafb-4f0bb1259977/bin-2019/ukojak/witness.graphml [2018-10-26 21:44:43,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:44:43,075 INFO L168 Benchmark]: Toolchain (without parser) took 3838.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 954.4 MB in the beginning and 948.2 MB in the end (delta: 6.2 MB). Peak memory consumption was 162.0 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:43,076 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:44:43,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.51 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:43,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.41 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:44:43,077 INFO L168 Benchmark]: Boogie Preprocessor took 16.18 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:43,078 INFO L168 Benchmark]: RCFGBuilder took 548.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -199.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:43,079 INFO L168 Benchmark]: CodeCheck took 2955.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 950.9 MB in the end (delta: 189.7 MB). Peak memory consumption was 189.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:43,079 INFO L168 Benchmark]: Witness Printer took 66.71 ms. Allocated memory is still 1.2 GB. Free memory was 950.9 MB in the beginning and 948.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:43,082 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 20 locations, 1 error locations. SAFE Result, 2.7s OverallTime, 8 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1536 SDtfs, 1196 SDslu, 1470 SDs, 0 SdLazy, 3904 SolverSat, 1650 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1130 GetRequests, 1051 SyntacticMatches, 37 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 161 ConstructedInterpolants, 0 QuantifiedInterpolants, 10395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 102/140 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 5]: 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 213.51 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.41 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.18 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 548.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -199.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * CodeCheck took 2955.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 950.9 MB in the end (delta: 189.7 MB). Peak memory consumption was 189.7 MB. Max. memory is 11.5 GB. * Witness Printer took 66.71 ms. Allocated memory is still 1.2 GB. Free memory was 950.9 MB in the beginning and 948.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...