./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute_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_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/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 3607a70e53f56c4b4860f9fca9676a925474c3df ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:25:00,687 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 01:25:00,688 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 01:25:00,696 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 01:25:00,697 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 01:25:00,697 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 01:25:00,698 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 01:25:00,699 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 01:25:00,700 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 01:25:00,701 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 01:25:00,701 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 01:25:00,702 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 01:25:00,702 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 01:25:00,703 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 01:25:00,703 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 01:25:00,704 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 01:25:00,709 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 01:25:00,710 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 01:25:00,711 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 01:25:00,713 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 01:25:00,713 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 01:25:00,714 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 01:25:00,716 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 01:25:00,716 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 01:25:00,716 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 01:25:00,717 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 01:25:00,717 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 01:25:00,718 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 01:25:00,718 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 01:25:00,719 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 01:25:00,719 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 01:25:00,720 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 01:25:00,720 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 01:25:00,720 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 01:25:00,721 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 01:25:00,721 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 01:25:00,722 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 01:25:00,732 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 01:25:00,732 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 01:25:00,732 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 01:25:00,733 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 01:25:00,733 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 01:25:00,733 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 01:25:00,733 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 01:25:00,734 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 01:25:00,734 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 01:25:00,734 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 01:25:00,734 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 01:25:00,734 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 01:25:00,734 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 01:25:00,735 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 01:25:00,735 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 01:25:00,735 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 01:25:00,735 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 01:25:00,735 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 01:25:00,735 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 01:25:00,735 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 01:25:00,735 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 01:25:00,736 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 01:25:00,736 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 01:25:00,736 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 01:25:00,736 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 01:25:00,736 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 01:25:00,736 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 01:25:00,737 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 01:25:00,737 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 01:25:00,737 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 01:25:00,737 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_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/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 -> 3607a70e53f56c4b4860f9fca9676a925474c3df [2018-11-23 01:25:00,759 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 01:25:00,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 01:25:00,769 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 01:25:00,770 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 01:25:00,770 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 01:25:00,770 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-11-23 01:25:00,807 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/bin-2019/uautomizer/data/bcc32f981/dfbcb38ed54c45f189170da6a475acd2/FLAG65a6ff556 [2018-11-23 01:25:01,114 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 01:25:01,115 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-11-23 01:25:01,119 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/bin-2019/uautomizer/data/bcc32f981/dfbcb38ed54c45f189170da6a475acd2/FLAG65a6ff556 [2018-11-23 01:25:01,129 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/bin-2019/uautomizer/data/bcc32f981/dfbcb38ed54c45f189170da6a475acd2 [2018-11-23 01:25:01,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 01:25:01,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 01:25:01,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 01:25:01,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 01:25:01,137 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 01:25:01,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:25:01" (1/1) ... [2018-11-23 01:25:01,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e5fba41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01, skipping insertion in model container [2018-11-23 01:25:01,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:25:01" (1/1) ... [2018-11-23 01:25:01,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 01:25:01,166 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 01:25:01,276 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:25:01,279 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 01:25:01,293 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:25:01,301 INFO L195 MainTranslator]: Completed translation [2018-11-23 01:25:01,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01 WrapperNode [2018-11-23 01:25:01,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 01:25:01,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 01:25:01,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 01:25:01,302 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 01:25:01,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01" (1/1) ... [2018-11-23 01:25:01,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01" (1/1) ... [2018-11-23 01:25:01,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 01:25:01,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 01:25:01,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 01:25:01,316 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 01:25:01,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01" (1/1) ... [2018-11-23 01:25:01,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01" (1/1) ... [2018-11-23 01:25:01,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01" (1/1) ... [2018-11-23 01:25:01,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01" (1/1) ... [2018-11-23 01:25:01,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01" (1/1) ... [2018-11-23 01:25:01,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01" (1/1) ... [2018-11-23 01:25:01,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01" (1/1) ... [2018-11-23 01:25:01,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 01:25:01,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 01:25:01,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 01:25:01,330 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 01:25:01,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/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 01:25:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 01:25:01,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 01:25:01,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 01:25:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 01:25:01,401 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 01:25:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 01:25:01,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 01:25:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 01:25:01,544 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 01:25:01,544 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 01:25:01,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:25:01 BoogieIcfgContainer [2018-11-23 01:25:01,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 01:25:01,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 01:25:01,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 01:25:01,547 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 01:25:01,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:25:01" (1/3) ... [2018-11-23 01:25:01,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4111b334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:25:01, skipping insertion in model container [2018-11-23 01:25:01,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:01" (2/3) ... [2018-11-23 01:25:01,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4111b334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:25:01, skipping insertion in model container [2018-11-23 01:25:01,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:25:01" (3/3) ... [2018-11-23 01:25:01,550 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute_true-unreach-call_true-termination.i [2018-11-23 01:25:01,557 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 01:25:01,564 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 01:25:01,574 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 01:25:01,591 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 01:25:01,591 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 01:25:01,591 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 01:25:01,591 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 01:25:01,591 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 01:25:01,591 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 01:25:01,591 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 01:25:01,592 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 01:25:01,592 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 01:25:01,602 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-11-23 01:25:01,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 01:25:01,607 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:25:01,607 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:25:01,608 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:25:01,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:25:01,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1277279000, now seen corresponding path program 1 times [2018-11-23 01:25:01,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:25:01,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:25:01,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:25:01,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:25:01,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:25:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:25:01,742 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 01:25:01,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:25:01,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 01:25:01,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 01:25:01,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 01:25:01,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 01:25:01,755 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 5 states. [2018-11-23 01:25:01,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:25:01,933 INFO L93 Difference]: Finished difference Result 111 states and 206 transitions. [2018-11-23 01:25:01,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 01:25:01,934 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-23 01:25:01,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:25:01,941 INFO L225 Difference]: With dead ends: 111 [2018-11-23 01:25:01,941 INFO L226 Difference]: Without dead ends: 63 [2018-11-23 01:25:01,945 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 01:25:01,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-23 01:25:01,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 56. [2018-11-23 01:25:01,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-23 01:25:01,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2018-11-23 01:25:01,982 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 16 [2018-11-23 01:25:01,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:25:01,983 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2018-11-23 01:25:01,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 01:25:01,983 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2018-11-23 01:25:01,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 01:25:01,985 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:25:01,985 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:25:01,985 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:25:01,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:25:01,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1256946511, now seen corresponding path program 1 times [2018-11-23 01:25:01,986 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:25:01,986 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:25:01,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:25:01,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:25:01,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:25:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:25:02,063 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 01:25:02,063 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 01:25:02,063 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/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 01:25:02,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:25:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:25:02,087 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:25:02,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:25:02,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 01:25:02,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-11-23 01:25:02,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 01:25:02,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 01:25:02,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-23 01:25:02,140 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand 9 states. [2018-11-23 01:25:02,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:25:02,359 INFO L93 Difference]: Finished difference Result 62 states and 84 transitions. [2018-11-23 01:25:02,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 01:25:02,360 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-11-23 01:25:02,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:25:02,362 INFO L225 Difference]: With dead ends: 62 [2018-11-23 01:25:02,362 INFO L226 Difference]: Without dead ends: 60 [2018-11-23 01:25:02,363 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 1 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 01:25:02,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-23 01:25:02,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-11-23 01:25:02,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-23 01:25:02,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 82 transitions. [2018-11-23 01:25:02,375 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 82 transitions. Word has length 21 [2018-11-23 01:25:02,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:25:02,375 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 82 transitions. [2018-11-23 01:25:02,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 01:25:02,375 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2018-11-23 01:25:02,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-23 01:25:02,377 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:25:02,377 INFO L402 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:25:02,378 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:25:02,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:25:02,378 INFO L82 PathProgramCache]: Analyzing trace with hash -2038837229, now seen corresponding path program 1 times [2018-11-23 01:25:02,378 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:25:02,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:25:02,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:25:02,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:25:02,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:25:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:25:02,423 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-23 01:25:02,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:25:02,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 01:25:02,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 01:25:02,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 01:25:02,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:25:02,424 INFO L87 Difference]: Start difference. First operand 60 states and 82 transitions. Second operand 3 states. [2018-11-23 01:25:02,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:25:02,453 INFO L93 Difference]: Finished difference Result 89 states and 122 transitions. [2018-11-23 01:25:02,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 01:25:02,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-11-23 01:25:02,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:25:02,455 INFO L225 Difference]: With dead ends: 89 [2018-11-23 01:25:02,455 INFO L226 Difference]: Without dead ends: 60 [2018-11-23 01:25:02,456 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:25:02,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-23 01:25:02,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-11-23 01:25:02,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-23 01:25:02,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 80 transitions. [2018-11-23 01:25:02,465 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 80 transitions. Word has length 50 [2018-11-23 01:25:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:25:02,465 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 80 transitions. [2018-11-23 01:25:02,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 01:25:02,466 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2018-11-23 01:25:02,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-23 01:25:02,467 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:25:02,467 INFO L402 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:25:02,467 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:25:02,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:25:02,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1689114790, now seen corresponding path program 1 times [2018-11-23 01:25:02,467 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:25:02,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:25:02,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:25:02,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:25:02,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:25:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:25:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 13 proven. 23 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-23 01:25:02,533 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 01:25:02,533 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/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 01:25:02,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:25:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:25:02,560 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:25:02,600 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-23 01:25:02,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 01:25:02,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-11-23 01:25:02,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 01:25:02,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 01:25:02,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-23 01:25:02,616 INFO L87 Difference]: Start difference. First operand 60 states and 80 transitions. Second operand 9 states. [2018-11-23 01:25:02,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:25:02,757 INFO L93 Difference]: Finished difference Result 67 states and 86 transitions. [2018-11-23 01:25:02,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 01:25:02,758 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2018-11-23 01:25:02,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:25:02,759 INFO L225 Difference]: With dead ends: 67 [2018-11-23 01:25:02,759 INFO L226 Difference]: Without dead ends: 65 [2018-11-23 01:25:02,759 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-23 01:25:02,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-23 01:25:02,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2018-11-23 01:25:02,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-23 01:25:02,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2018-11-23 01:25:02,766 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 51 [2018-11-23 01:25:02,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:25:02,766 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2018-11-23 01:25:02,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 01:25:02,766 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2018-11-23 01:25:02,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-11-23 01:25:02,767 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:25:02,768 INFO L402 BasicCegarLoop]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:25:02,768 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:25:02,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:25:02,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1728052911, now seen corresponding path program 1 times [2018-11-23 01:25:02,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:25:02,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:25:02,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:25:02,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:25:02,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:25:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:25:02,844 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 23 proven. 34 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-11-23 01:25:02,844 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 01:25:02,844 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/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 01:25:02,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:25:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:25:02,878 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:25:02,911 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-11-23 01:25:02,925 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 01:25:02,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-11-23 01:25:02,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 01:25:02,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 01:25:02,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-23 01:25:02,926 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand 9 states. [2018-11-23 01:25:03,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:25:03,055 INFO L93 Difference]: Finished difference Result 73 states and 91 transitions. [2018-11-23 01:25:03,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 01:25:03,056 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2018-11-23 01:25:03,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:25:03,057 INFO L225 Difference]: With dead ends: 73 [2018-11-23 01:25:03,057 INFO L226 Difference]: Without dead ends: 71 [2018-11-23 01:25:03,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-23 01:25:03,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-23 01:25:03,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2018-11-23 01:25:03,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-23 01:25:03,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 86 transitions. [2018-11-23 01:25:03,062 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 86 transitions. Word has length 86 [2018-11-23 01:25:03,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:25:03,063 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 86 transitions. [2018-11-23 01:25:03,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 01:25:03,063 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 86 transitions. [2018-11-23 01:25:03,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-11-23 01:25:03,064 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:25:03,064 INFO L402 BasicCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:25:03,064 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:25:03,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:25:03,065 INFO L82 PathProgramCache]: Analyzing trace with hash -733340726, now seen corresponding path program 1 times [2018-11-23 01:25:03,065 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:25:03,065 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:25:03,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:25:03,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:25:03,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:25:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:25:03,134 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 25 proven. 37 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2018-11-23 01:25:03,135 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 01:25:03,135 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 01:25:03,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:25:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:25:03,161 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:25:03,188 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2018-11-23 01:25:03,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 01:25:03,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2018-11-23 01:25:03,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 01:25:03,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 01:25:03,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-23 01:25:03,203 INFO L87 Difference]: Start difference. First operand 68 states and 86 transitions. Second operand 10 states. [2018-11-23 01:25:03,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:25:03,338 INFO L93 Difference]: Finished difference Result 74 states and 95 transitions. [2018-11-23 01:25:03,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 01:25:03,339 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2018-11-23 01:25:03,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:25:03,339 INFO L225 Difference]: With dead ends: 74 [2018-11-23 01:25:03,339 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 01:25:03,340 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-11-23 01:25:03,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 01:25:03,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 01:25:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 01:25:03,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 01:25:03,341 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2018-11-23 01:25:03,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:25:03,341 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:25:03,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 01:25:03,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 01:25:03,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 01:25:03,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 01:25:03,521 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 01:25:03,522 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 01:25:03,522 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 01:25:03,522 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 01:25:03,522 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 01:25:03,522 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 01:25:03,522 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 69) no Hoare annotation was computed. [2018-11-23 01:25:03,522 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-23 01:25:03,522 INFO L448 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-11-23 01:25:03,522 INFO L444 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-11-23 01:25:03,523 INFO L444 ceAbstractionStarter]: At program point L28-1(line 28) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-11-23 01:25:03,523 INFO L444 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (let ((.cse0 (<= 1 main_~cp~0)) (.cse1 (<= 0 main_~scheme~0)) (.cse2 (<= (+ main_~cp~0 2) main_~urilen~0)) (.cse3 (<= (+ main_~c~0 2) main_~tokenlen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3) (and .cse0 .cse1 (<= 1 main_~c~0) .cse2 .cse3))) [2018-11-23 01:25:03,523 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-23 01:25:03,523 INFO L444 ceAbstractionStarter]: At program point L53-1(line 53) the Hoare annotation is: (let ((.cse0 (<= 1 main_~cp~0)) (.cse1 (<= 0 main_~scheme~0)) (.cse2 (<= (+ main_~cp~0 2) main_~urilen~0)) (.cse3 (<= (+ main_~c~0 2) main_~tokenlen~0))) (or (and .cse0 (= main_~c~0 0) .cse1 .cse2 .cse3) (and .cse0 .cse1 (<= 1 main_~c~0) .cse2 .cse3))) [2018-11-23 01:25:03,523 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-23 01:25:03,523 INFO L448 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-11-23 01:25:03,523 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-23 01:25:03,523 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 11 69) no Hoare annotation was computed. [2018-11-23 01:25:03,523 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 69) no Hoare annotation was computed. [2018-11-23 01:25:03,524 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 66) no Hoare annotation was computed. [2018-11-23 01:25:03,524 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 69) the Hoare annotation is: true [2018-11-23 01:25:03,524 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 61) no Hoare annotation was computed. [2018-11-23 01:25:03,524 INFO L448 ceAbstractionStarter]: For program point L22(lines 11 69) no Hoare annotation was computed. [2018-11-23 01:25:03,525 INFO L448 ceAbstractionStarter]: For program point L55-1(lines 55 61) no Hoare annotation was computed. [2018-11-23 01:25:03,525 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 65) no Hoare annotation was computed. [2018-11-23 01:25:03,525 INFO L444 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (let ((.cse0 (<= 1 main_~cp~0)) (.cse1 (<= 0 main_~scheme~0))) (or (and (= main_~urilen~0 (+ main_~cp~0 1)) .cse0 .cse1) (and .cse0 .cse1 (<= (+ main_~cp~0 2) main_~urilen~0)))) [2018-11-23 01:25:03,525 INFO L444 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-11-23 01:25:03,525 INFO L444 ceAbstractionStarter]: At program point L31-1(line 31) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-11-23 01:25:03,525 INFO L448 ceAbstractionStarter]: For program point L23(lines 11 69) no Hoare annotation was computed. [2018-11-23 01:25:03,525 INFO L448 ceAbstractionStarter]: For program point L40(lines 30 66) no Hoare annotation was computed. [2018-11-23 01:25:03,525 INFO L444 ceAbstractionStarter]: At program point L57(line 57) the Hoare annotation is: (and (<= (+ main_~c~0 1) main_~tokenlen~0) (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= 1 main_~c~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-11-23 01:25:03,525 INFO L444 ceAbstractionStarter]: At program point L57-1(line 57) the Hoare annotation is: (and (<= (+ main_~c~0 1) main_~tokenlen~0) (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= 1 main_~c~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-11-23 01:25:03,526 INFO L444 ceAbstractionStarter]: At program point L49(line 49) the Hoare annotation is: (and (<= 1 main_~cp~0) (= main_~c~0 0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-11-23 01:25:03,526 INFO L444 ceAbstractionStarter]: At program point L49-1(line 49) the Hoare annotation is: (and (<= 1 main_~cp~0) (= main_~c~0 0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-11-23 01:25:03,526 INFO L444 ceAbstractionStarter]: At program point L33-1(lines 32 38) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-11-23 01:25:03,526 INFO L444 ceAbstractionStarter]: At program point L33-2(lines 33 38) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-11-23 01:25:03,526 INFO L444 ceAbstractionStarter]: At program point L58(line 58) the Hoare annotation is: (and (<= (+ main_~c~0 1) main_~tokenlen~0) (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= 1 main_~c~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-11-23 01:25:03,526 INFO L444 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-11-23 01:25:03,526 INFO L444 ceAbstractionStarter]: At program point L42-1(line 42) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-11-23 01:25:03,526 INFO L451 ceAbstractionStarter]: At program point L67(lines 11 69) the Hoare annotation is: true [2018-11-23 01:25:03,526 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-23 01:25:03,526 INFO L444 ceAbstractionStarter]: At program point L59(line 59) the Hoare annotation is: (and (<= (+ main_~c~0 1) main_~tokenlen~0) (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= 1 main_~c~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-11-23 01:25:03,527 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-23 01:25:03,527 INFO L444 ceAbstractionStarter]: At program point L51-1(lines 50 63) the Hoare annotation is: (let ((.cse0 (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)))) (or (and (= main_~c~0 0) .cse0) (and .cse0 (<= 1 main_~c~0)))) [2018-11-23 01:25:03,527 INFO L448 ceAbstractionStarter]: For program point L43(lines 30 66) no Hoare annotation was computed. [2018-11-23 01:25:03,527 INFO L444 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-11-23 01:25:03,527 INFO L444 ceAbstractionStarter]: At program point L35-1(line 35) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-11-23 01:25:03,527 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 01:25:03,527 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 01:25:03,527 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 01:25:03,527 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 01:25:03,527 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 01:25:03,528 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 01:25:03,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:25:03 BoogieIcfgContainer [2018-11-23 01:25:03,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 01:25:03,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 01:25:03,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 01:25:03,538 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 01:25:03,538 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:25:01" (3/4) ... [2018-11-23 01:25:03,541 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 01:25:03,544 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 01:25:03,545 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 01:25:03,545 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 01:25:03,549 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-23 01:25:03,549 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 01:25:03,549 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 01:25:03,593 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ce3f49d2-2c76-4f6b-a0b8-720ff0c84940/bin-2019/uautomizer/witness.graphml [2018-11-23 01:25:03,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 01:25:03,593 INFO L168 Benchmark]: Toolchain (without parser) took 2461.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2018-11-23 01:25:03,595 INFO L168 Benchmark]: CDTParser took 0.10 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 01:25:03,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.96 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:25:03,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.00 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:25:03,595 INFO L168 Benchmark]: Boogie Preprocessor took 13.83 ms. Allocated memory is still 1.0 GB. Free memory was 946.8 MB in the beginning and 945.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2018-11-23 01:25:03,596 INFO L168 Benchmark]: RCFGBuilder took 214.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -148.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 01:25:03,596 INFO L168 Benchmark]: TraceAbstraction took 1993.03 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -35.9 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2018-11-23 01:25:03,596 INFO L168 Benchmark]: Witness Printer took 54.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2018-11-23 01:25:03,598 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 167.96 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.00 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.83 ms. Allocated memory is still 1.0 GB. Free memory was 946.8 MB in the beginning and 945.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 214.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -148.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1993.03 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -35.9 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. * Witness Printer took 54.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 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: 50]: Loop Invariant Derived loop invariant: (c == 0 && (1 <= cp && cp + 1 <= urilen) && 0 <= scheme) || (((1 <= cp && cp + 1 <= urilen) && 0 <= scheme) && 1 <= c) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (1 <= cp && cp + 1 <= urilen) && 0 <= scheme - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 6 OverallIterations, 14 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 328 SDtfs, 113 SDslu, 1039 SDs, 0 SdLazy, 834 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 301 GetRequests, 255 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=5, 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, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 76 PreInvPairs, 104 NumberOfFragments, 376 HoareAnnotationTreeSize, 76 FomulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 26 FomulaSimplificationsInter, 78 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 564 NumberOfCodeBlocks, 564 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 554 ConstructedInterpolants, 0 QuantifiedInterpolants, 55274 SizeOfPredicates, 10 NumberOfNonLiveVariables, 522 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 1377/1472 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...