./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2797de73b923a7fbf0f091cb97be1331c2699e2c ...................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 18:06:32,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 18:06:32,074 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 18:06:32,082 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 18:06:32,082 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 18:06:32,083 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 18:06:32,083 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 18:06:32,084 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 18:06:32,085 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 18:06:32,085 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 18:06:32,085 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 18:06:32,086 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 18:06:32,086 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 18:06:32,086 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 18:06:32,087 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 18:06:32,087 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 18:06:32,088 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 18:06:32,089 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 18:06:32,090 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 18:06:32,090 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 18:06:32,091 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 18:06:32,091 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 18:06:32,092 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 18:06:32,093 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 18:06:32,093 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 18:06:32,093 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 18:06:32,094 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 18:06:32,094 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 18:06:32,094 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 18:06:32,095 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 18:06:32,095 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 18:06:32,095 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 18:06:32,095 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 18:06:32,095 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 18:06:32,096 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 18:06:32,096 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 18:06:32,096 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-01 18:06:32,103 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 18:06:32,103 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 18:06:32,104 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 18:06:32,104 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 18:06:32,104 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 18:06:32,104 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 18:06:32,105 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 18:06:32,105 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 18:06:32,105 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 18:06:32,105 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 18:06:32,105 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 18:06:32,105 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 18:06:32,105 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 18:06:32,106 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 18:06:32,106 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 18:06:32,106 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 18:06:32,106 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 18:06:32,106 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 18:06:32,106 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 18:06:32,106 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 18:06:32,107 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 18:06:32,107 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 18:06:32,107 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 18:06:32,107 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 18:06:32,107 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 18:06:32,107 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 18:06:32,108 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 18:06:32,108 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 18:06:32,108 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 18:06:32,108 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 18:06:32,108 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_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer 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 -> Automizer 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 -> 2797de73b923a7fbf0f091cb97be1331c2699e2c [2018-12-01 18:06:32,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 18:06:32,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 18:06:32,139 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 18:06:32,140 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 18:06:32,141 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 18:06:32,141 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/../../sv-benchmarks/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i [2018-12-01 18:06:32,174 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/data/7ac0ae591/46d59cdab716426385017c2f39820d58/FLAG90fcd29dd [2018-12-01 18:06:32,518 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 18:06:32,519 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/sv-benchmarks/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i [2018-12-01 18:06:32,523 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/data/7ac0ae591/46d59cdab716426385017c2f39820d58/FLAG90fcd29dd [2018-12-01 18:06:32,905 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/data/7ac0ae591/46d59cdab716426385017c2f39820d58 [2018-12-01 18:06:32,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 18:06:32,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 18:06:32,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 18:06:32,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 18:06:32,911 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 18:06:32,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:06:32" (1/1) ... [2018-12-01 18:06:32,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286a6d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:32, skipping insertion in model container [2018-12-01 18:06:32,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:06:32" (1/1) ... [2018-12-01 18:06:32,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 18:06:32,927 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 18:06:33,016 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:06:33,018 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 18:06:33,026 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:06:33,033 INFO L195 MainTranslator]: Completed translation [2018-12-01 18:06:33,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:33 WrapperNode [2018-12-01 18:06:33,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 18:06:33,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 18:06:33,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 18:06:33,034 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 18:06:33,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:33" (1/1) ... [2018-12-01 18:06:33,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:33" (1/1) ... [2018-12-01 18:06:33,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 18:06:33,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 18:06:33,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 18:06:33,045 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 18:06:33,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:33" (1/1) ... [2018-12-01 18:06:33,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:33" (1/1) ... [2018-12-01 18:06:33,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:33" (1/1) ... [2018-12-01 18:06:33,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:33" (1/1) ... [2018-12-01 18:06:33,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:33" (1/1) ... [2018-12-01 18:06:33,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:33" (1/1) ... [2018-12-01 18:06:33,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:33" (1/1) ... [2018-12-01 18:06:33,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 18:06:33,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 18:06:33,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 18:06:33,056 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 18:06:33,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2018-12-01 18:06:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 18:06:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 18:06:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 18:06:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 18:06:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 18:06:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 18:06:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-01 18:06:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-01 18:06:33,191 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 18:06:33,191 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-01 18:06:33,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:06:33 BoogieIcfgContainer [2018-12-01 18:06:33,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 18:06:33,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 18:06:33,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 18:06:33,194 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 18:06:33,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 06:06:32" (1/3) ... [2018-12-01 18:06:33,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dc2db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 06:06:33, skipping insertion in model container [2018-12-01 18:06:33,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:33" (2/3) ... [2018-12-01 18:06:33,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dc2db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 06:06:33, skipping insertion in model container [2018-12-01 18:06:33,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:06:33" (3/3) ... [2018-12-01 18:06:33,195 INFO L112 eAbstractionObserver]: Analyzing ICFG underapprox_true-unreach-call2_true-termination.i [2018-12-01 18:06:33,201 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 18:06:33,204 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-01 18:06:33,213 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-01 18:06:33,230 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 18:06:33,230 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 18:06:33,230 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 18:06:33,230 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 18:06:33,230 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 18:06:33,230 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 18:06:33,231 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 18:06:33,231 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 18:06:33,231 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 18:06:33,241 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-12-01 18:06:33,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-01 18:06:33,244 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:06:33,244 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:06:33,246 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 18:06:33,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:06:33,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2018-12-01 18:06:33,250 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:06:33,250 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:06:33,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:06:33,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:06:33,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:06:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:06:33,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:06:33,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 18:06:33,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 18:06:33,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 18:06:33,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 18:06:33,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 18:06:33,384 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-12-01 18:06:33,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:06:33,404 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2018-12-01 18:06:33,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 18:06:33,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-01 18:06:33,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:06:33,411 INFO L225 Difference]: With dead ends: 29 [2018-12-01 18:06:33,411 INFO L226 Difference]: Without dead ends: 12 [2018-12-01 18:06:33,413 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 18:06:33,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-01 18:06:33,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-01 18:06:33,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-01 18:06:33,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-12-01 18:06:33,437 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-12-01 18:06:33,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:06:33,438 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-12-01 18:06:33,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 18:06:33,438 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-12-01 18:06:33,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 18:06:33,438 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:06:33,438 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:06:33,438 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 18:06:33,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:06:33,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1432376145, now seen corresponding path program 1 times [2018-12-01 18:06:33,439 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:06:33,439 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:06:33,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:06:33,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:06:33,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:06:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:06:33,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:06:33,494 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 18:06:33,494 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 18:06:33,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:06:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:06:33,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:06:33,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:06:33,548 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 18:06:33,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-12-01 18:06:33,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 18:06:33,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 18:06:33,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-01 18:06:33,549 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-12-01 18:06:33,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:06:33,559 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-12-01 18:06:33,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 18:06:33,560 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-12-01 18:06:33,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:06:33,560 INFO L225 Difference]: With dead ends: 18 [2018-12-01 18:06:33,560 INFO L226 Difference]: Without dead ends: 13 [2018-12-01 18:06:33,561 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-01 18:06:33,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-12-01 18:06:33,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-12-01 18:06:33,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-01 18:06:33,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-12-01 18:06:33,563 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-12-01 18:06:33,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:06:33,563 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-12-01 18:06:33,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 18:06:33,563 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-12-01 18:06:33,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-01 18:06:33,563 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:06:33,563 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:06:33,563 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 18:06:33,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:06:33,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1490448798, now seen corresponding path program 2 times [2018-12-01 18:06:33,564 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:06:33,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:06:33,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:06:33,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:06:33,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:06:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:06:33,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:06:33,610 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 18:06:33,610 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 18:06:33,616 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-01 18:06:33,622 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-01 18:06:33,622 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 18:06:33,623 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:06:33,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:06:33,649 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 18:06:33,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-12-01 18:06:33,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 18:06:33,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 18:06:33,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-01 18:06:33,650 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2018-12-01 18:06:33,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:06:33,662 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-12-01 18:06:33,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 18:06:33,662 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-12-01 18:06:33,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:06:33,663 INFO L225 Difference]: With dead ends: 19 [2018-12-01 18:06:33,663 INFO L226 Difference]: Without dead ends: 14 [2018-12-01 18:06:33,663 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-01 18:06:33,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-01 18:06:33,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-01 18:06:33,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-01 18:06:33,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-12-01 18:06:33,665 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-12-01 18:06:33,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:06:33,665 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-12-01 18:06:33,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 18:06:33,665 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-12-01 18:06:33,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-01 18:06:33,665 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:06:33,666 INFO L402 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:06:33,666 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 18:06:33,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:06:33,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1004266255, now seen corresponding path program 3 times [2018-12-01 18:06:33,666 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:06:33,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:06:33,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:06:33,667 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 18:06:33,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:06:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:06:33,708 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:06:33,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 18:06:33,708 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 18:06:33,717 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-01 18:06:33,723 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-01 18:06:33,723 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 18:06:33,724 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:06:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-01 18:06:33,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 18:06:33,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-01 18:06:33,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-01 18:06:33,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-01 18:06:33,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-01 18:06:33,785 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 10 states. [2018-12-01 18:06:33,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:06:33,832 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2018-12-01 18:06:33,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-01 18:06:33,832 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2018-12-01 18:06:33,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:06:33,832 INFO L225 Difference]: With dead ends: 18 [2018-12-01 18:06:33,832 INFO L226 Difference]: Without dead ends: 0 [2018-12-01 18:06:33,833 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-12-01 18:06:33,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-01 18:06:33,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-01 18:06:33,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-01 18:06:33,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 18:06:33,833 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-12-01 18:06:33,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:06:33,834 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 18:06:33,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-01 18:06:33,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-01 18:06:33,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 18:06:33,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-01 18:06:33,867 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-01 18:06:33,868 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-01 18:06:33,868 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-01 18:06:33,868 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-01 18:06:33,868 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-01 18:06:33,868 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-01 18:06:33,868 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 8 16) the Hoare annotation is: true [2018-12-01 18:06:33,868 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 16) no Hoare annotation was computed. [2018-12-01 18:06:33,868 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 16) no Hoare annotation was computed. [2018-12-01 18:06:33,868 INFO L444 ceAbstractionStarter]: At program point L11-2(lines 11 14) the Hoare annotation is: (or (and (<= main_~x~0 0) (<= 0 main_~x~0)) (< (mod (+ main_~x~0 4294967295) 4294967296) 6)) [2018-12-01 18:06:33,868 INFO L444 ceAbstractionStarter]: At program point L11-3(lines 11 14) the Hoare annotation is: (and (< (mod (+ main_~x~0 4294967295) 4294967296) 6) (<= 6 (mod main_~x~0 4294967296))) [2018-12-01 18:06:33,868 INFO L448 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-12-01 18:06:33,868 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-12-01 18:06:33,868 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-12-01 18:06:33,869 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-12-01 18:06:33,869 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-12-01 18:06:33,869 INFO L448 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-12-01 18:06:33,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 06:06:33 BoogieIcfgContainer [2018-12-01 18:06:33,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 18:06:33,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 18:06:33,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 18:06:33,876 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 18:06:33,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:06:33" (3/4) ... [2018-12-01 18:06:33,878 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 18:06:33,882 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-01 18:06:33,882 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-01 18:06:33,882 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-01 18:06:33,884 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-01 18:06:33,884 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-01 18:06:33,884 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 18:06:33,907 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0a44d30c-82e5-4dc2-bde1-fb26de504190/bin-2019/uautomizer/witness.graphml [2018-12-01 18:06:33,908 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 18:06:33,908 INFO L168 Benchmark]: Toolchain (without parser) took 1000.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 953.3 MB in the beginning and 987.2 MB in the end (delta: -33.9 MB). Peak memory consumption was 72.5 MB. Max. memory is 11.5 GB. [2018-12-01 18:06:33,909 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:06:33,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 125.04 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-01 18:06:33,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 10.85 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:06:33,910 INFO L168 Benchmark]: Boogie Preprocessor took 10.68 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:06:33,910 INFO L168 Benchmark]: RCFGBuilder took 135.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -147.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-12-01 18:06:33,910 INFO L168 Benchmark]: TraceAbstraction took 683.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 989.9 MB in the end (delta: 100.3 MB). Peak memory consumption was 100.3 MB. Max. memory is 11.5 GB. [2018-12-01 18:06:33,910 INFO L168 Benchmark]: Witness Printer took 31.77 ms. Allocated memory is still 1.1 GB. Free memory was 989.9 MB in the beginning and 987.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 18:06:33,913 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 125.04 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 10.85 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.68 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 135.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -147.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 683.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 989.9 MB in the end (delta: 100.3 MB). Peak memory consumption was 100.3 MB. Max. memory is 11.5 GB. * Witness Printer took 31.77 ms. Allocated memory is still 1.1 GB. Free memory was 989.9 MB in the beginning and 987.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 11]: Loop Invariant Derived loop invariant: (x <= 0 && 0 <= x) || (x + 4294967295) % 4294967296 < 6 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 2 SDslu, 88 SDs, 0 SdLazy, 60 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 31 SyntacticMatches, 8 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 33 HoareAnnotationTreeSize, 11 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 82 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 2185 SizeOfPredicates, 2 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 6/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...