./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/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 ca707ecc133af2ec0063556d89a3ce449d0860eb ................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 02:53:08,080 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:53:08,081 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:53:08,088 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:53:08,088 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:53:08,089 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:53:08,090 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:53:08,091 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:53:08,092 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:53:08,092 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:53:08,093 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:53:08,093 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:53:08,094 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:53:08,095 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:53:08,096 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:53:08,096 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:53:08,097 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:53:08,099 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:53:08,100 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:53:08,101 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:53:08,102 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:53:08,103 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:53:08,104 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:53:08,104 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:53:08,104 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:53:08,105 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:53:08,105 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:53:08,106 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:53:08,107 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:53:08,107 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:53:08,107 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:53:08,108 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:53:08,108 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:53:08,108 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:53:08,109 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:53:08,109 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:53:08,109 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 02:53:08,118 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:53:08,118 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:53:08,119 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:53:08,119 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:53:08,120 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 02:53:08,120 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 02:53:08,120 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 02:53:08,120 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:53:08,120 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:53:08,120 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 02:53:08,121 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:53:08,121 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:53:08,121 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:53:08,121 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:53:08,121 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:53:08,121 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:53:08,121 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:53:08,122 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:53:08,122 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:53:08,122 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:53:08,122 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:53:08,122 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:53:08,122 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:53:08,122 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:53:08,123 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:53:08,123 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:53:08,123 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:53:08,123 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 02:53:08,123 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:53:08,123 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 02:53:08,123 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_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/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 -> ca707ecc133af2ec0063556d89a3ce449d0860eb [2018-11-23 02:53:08,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:53:08,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:53:08,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:53:08,159 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:53:08,159 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:53:08,159 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i [2018-11-23 02:53:08,195 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/bin-2019/uautomizer/data/6aa338e08/3f71e7557a2d4599803fef086571cc47/FLAG248fb4c3f [2018-11-23 02:53:08,491 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:53:08,492 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/sv-benchmarks/c/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i [2018-11-23 02:53:08,495 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/bin-2019/uautomizer/data/6aa338e08/3f71e7557a2d4599803fef086571cc47/FLAG248fb4c3f [2018-11-23 02:53:08,503 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/bin-2019/uautomizer/data/6aa338e08/3f71e7557a2d4599803fef086571cc47 [2018-11-23 02:53:08,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:53:08,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:53:08,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:53:08,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:53:08,508 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:53:08,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:08" (1/1) ... [2018-11-23 02:53:08,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3c513c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08, skipping insertion in model container [2018-11-23 02:53:08,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:08" (1/1) ... [2018-11-23 02:53:08,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:53:08,528 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:53:08,626 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:53:08,628 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:53:08,637 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:53:08,645 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:53:08,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08 WrapperNode [2018-11-23 02:53:08,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:53:08,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:53:08,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:53:08,646 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:53:08,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08" (1/1) ... [2018-11-23 02:53:08,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08" (1/1) ... [2018-11-23 02:53:08,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:53:08,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:53:08,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:53:08,658 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:53:08,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08" (1/1) ... [2018-11-23 02:53:08,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08" (1/1) ... [2018-11-23 02:53:08,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08" (1/1) ... [2018-11-23 02:53:08,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08" (1/1) ... [2018-11-23 02:53:08,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08" (1/1) ... [2018-11-23 02:53:08,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08" (1/1) ... [2018-11-23 02:53:08,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08" (1/1) ... [2018-11-23 02:53:08,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:53:08,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:53:08,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:53:08,670 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:53:08,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/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 [2018-11-23 02:53:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:53:08,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:53:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:53:08,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:53:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:53:08,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:53:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 02:53:08,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 02:53:08,861 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:53:08,861 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 02:53:08,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:08 BoogieIcfgContainer [2018-11-23 02:53:08,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:53:08,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:53:08,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:53:08,865 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:53:08,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:53:08" (1/3) ... [2018-11-23 02:53:08,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dfef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:53:08, skipping insertion in model container [2018-11-23 02:53:08,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:08" (2/3) ... [2018-11-23 02:53:08,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dfef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:53:08, skipping insertion in model container [2018-11-23 02:53:08,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:08" (3/3) ... [2018-11-23 02:53:08,868 INFO L112 eAbstractionObserver]: Analyzing ICFG NetBSD_loop_true-unreach-call_true-termination.i [2018-11-23 02:53:08,877 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:53:08,883 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 02:53:08,897 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 02:53:08,922 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 02:53:08,923 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:53:08,923 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:53:08,923 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:53:08,923 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:53:08,923 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:53:08,923 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:53:08,923 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:53:08,923 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:53:08,936 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-23 02:53:08,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 02:53:08,940 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:53:08,941 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:53:08,942 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:53:08,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:08,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1158151592, now seen corresponding path program 1 times [2018-11-23 02:53:08,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:53:08,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:53:08,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:08,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:08,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:09,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:53:09,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:53:09,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 02:53:09,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 02:53:09,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 02:53:09,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 02:53:09,091 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2018-11-23 02:53:09,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:53:09,151 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2018-11-23 02:53:09,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 02:53:09,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-11-23 02:53:09,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:53:09,158 INFO L225 Difference]: With dead ends: 44 [2018-11-23 02:53:09,158 INFO L226 Difference]: Without dead ends: 21 [2018-11-23 02:53:09,160 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 02:53:09,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-23 02:53:09,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-23 02:53:09,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-23 02:53:09,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-11-23 02:53:09,183 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 12 [2018-11-23 02:53:09,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:53:09,183 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-11-23 02:53:09,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 02:53:09,183 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-11-23 02:53:09,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 02:53:09,184 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:53:09,184 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:53:09,184 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:53:09,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:09,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1937413030, now seen corresponding path program 1 times [2018-11-23 02:53:09,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:53:09,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:53:09,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:09,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:09,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:09,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:53:09,260 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:09,260 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/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 [2018-11-23 02:53:09,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:09,287 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:53:09,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:53:09,423 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 02:53:09,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 11 [2018-11-23 02:53:09,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 02:53:09,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 02:53:09,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-11-23 02:53:09,425 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 11 states. [2018-11-23 02:53:09,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:53:09,512 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-11-23 02:53:09,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 02:53:09,512 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 17 [2018-11-23 02:53:09,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:53:09,513 INFO L225 Difference]: With dead ends: 35 [2018-11-23 02:53:09,513 INFO L226 Difference]: Without dead ends: 33 [2018-11-23 02:53:09,513 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-11-23 02:53:09,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-23 02:53:09,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2018-11-23 02:53:09,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-23 02:53:09,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-11-23 02:53:09,518 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 17 [2018-11-23 02:53:09,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:53:09,519 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-11-23 02:53:09,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 02:53:09,519 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-11-23 02:53:09,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 02:53:09,519 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:53:09,520 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:53:09,520 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:53:09,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:09,520 INFO L82 PathProgramCache]: Analyzing trace with hash 441803270, now seen corresponding path program 1 times [2018-11-23 02:53:09,520 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:53:09,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:53:09,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:09,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:09,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:09,592 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 02:53:09,592 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:09,592 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/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 [2018-11-23 02:53:09,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:09,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:53:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 02:53:09,695 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 02:53:09,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 13 [2018-11-23 02:53:09,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 02:53:09,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 02:53:09,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-11-23 02:53:09,696 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 13 states. [2018-11-23 02:53:09,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:53:09,827 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2018-11-23 02:53:09,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 02:53:09,827 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2018-11-23 02:53:09,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:53:09,829 INFO L225 Difference]: With dead ends: 43 [2018-11-23 02:53:09,829 INFO L226 Difference]: Without dead ends: 41 [2018-11-23 02:53:09,829 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2018-11-23 02:53:09,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-23 02:53:09,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-11-23 02:53:09,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-23 02:53:09,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-11-23 02:53:09,837 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 29 [2018-11-23 02:53:09,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:53:09,837 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-11-23 02:53:09,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 02:53:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-11-23 02:53:09,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-23 02:53:09,839 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:53:09,839 INFO L402 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:53:09,839 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:53:09,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:09,839 INFO L82 PathProgramCache]: Analyzing trace with hash 713924710, now seen corresponding path program 2 times [2018-11-23 02:53:09,839 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:53:09,839 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:53:09,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:09,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:09,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-11-23 02:53:09,904 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:09,904 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/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 [2018-11-23 02:53:09,912 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 02:53:09,922 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 02:53:09,923 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 02:53:09,925 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:53:09,944 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-11-23 02:53:09,958 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 02:53:09,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2018-11-23 02:53:09,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 02:53:09,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 02:53:09,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-23 02:53:09,959 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 9 states. [2018-11-23 02:53:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:53:10,020 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-23 02:53:10,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 02:53:10,021 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-11-23 02:53:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:53:10,021 INFO L225 Difference]: With dead ends: 40 [2018-11-23 02:53:10,021 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 02:53:10,021 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-11-23 02:53:10,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 02:53:10,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 02:53:10,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 02:53:10,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 02:53:10,022 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-11-23 02:53:10,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:53:10,022 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:53:10,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 02:53:10,022 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 02:53:10,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 02:53:10,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 02:53:10,070 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 02:53:10,070 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:53:10,070 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:53:10,070 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 02:53:10,070 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:53:10,070 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:53:10,070 INFO L451 ceAbstractionStarter]: At program point L30(lines 11 31) the Hoare annotation is: true [2018-11-23 02:53:10,070 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 31) the Hoare annotation is: true [2018-11-23 02:53:10,070 INFO L448 ceAbstractionStarter]: For program point L28(lines 24 29) no Hoare annotation was computed. [2018-11-23 02:53:10,071 INFO L444 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 1 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)) [2018-11-23 02:53:10,071 INFO L444 ceAbstractionStarter]: At program point L27-1(line 27) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 1 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)) [2018-11-23 02:53:10,071 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 31) no Hoare annotation was computed. [2018-11-23 02:53:10,071 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 29) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 1 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0)) [2018-11-23 02:53:10,071 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-23 02:53:10,071 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-23 02:53:10,071 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 31) no Hoare annotation was computed. [2018-11-23 02:53:10,071 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 02:53:10,072 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 02:53:10,072 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 02:53:10,072 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 02:53:10,072 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 02:53:10,072 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 02:53:10,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:53:10 BoogieIcfgContainer [2018-11-23 02:53:10,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 02:53:10,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:53:10,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:53:10,080 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:53:10,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:08" (3/4) ... [2018-11-23 02:53:10,083 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 02:53:10,089 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 02:53:10,089 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 02:53:10,089 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 02:53:10,093 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-23 02:53:10,093 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 02:53:10,093 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 02:53:10,122 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2c8838c4-38b8-49c2-a55b-37aa67a8c5f6/bin-2019/uautomizer/witness.graphml [2018-11-23 02:53:10,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:53:10,123 INFO L168 Benchmark]: Toolchain (without parser) took 1617.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 959.7 MB in the beginning and 973.1 MB in the end (delta: -13.5 MB). Peak memory consumption was 147.0 MB. Max. memory is 11.5 GB. [2018-11-23 02:53:10,124 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:53:10,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.27 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-23 02:53:10,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.13 ms. Allocated memory is still 1.0 GB. Free memory is still 948.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:53:10,124 INFO L168 Benchmark]: Boogie Preprocessor took 12.00 ms. Allocated memory is still 1.0 GB. Free memory was 948.8 MB in the beginning and 946.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:53:10,125 INFO L168 Benchmark]: RCFGBuilder took 191.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 02:53:10,125 INFO L168 Benchmark]: TraceAbstraction took 1217.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.5 MB in the end (delta: 167.2 MB). Peak memory consumption was 167.2 MB. Max. memory is 11.5 GB. [2018-11-23 02:53:10,125 INFO L168 Benchmark]: Witness Printer took 42.43 ms. Allocated memory is still 1.2 GB. Free memory was 976.5 MB in the beginning and 973.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 02:53:10,127 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.27 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.8 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 12.13 ms. Allocated memory is still 1.0 GB. Free memory is still 948.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.00 ms. Allocated memory is still 1.0 GB. Free memory was 948.8 MB in the beginning and 946.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1217.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.5 MB in the end (delta: 167.2 MB). Peak memory consumption was 167.2 MB. Max. memory is 11.5 GB. * Witness Printer took 42.43 ms. Allocated memory is still 1.2 GB. Free memory was 976.5 MB in the beginning and 973.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 24]: Loop Invariant Derived loop invariant: (glob2_pathlim_off <= MAXPATHLEN && 1 <= MAXPATHLEN) && 0 <= glob2_p_off - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 4 OverallIterations, 6 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 SDtfs, 49 SDslu, 235 SDs, 0 SdLazy, 251 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 83 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=3, 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 16 PreInvPairs, 27 NumberOfFragments, 42 HoareAnnotationTreeSize, 16 FomulaSimplifications, 93 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 11777 SizeOfPredicates, 15 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 123/166 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...