./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1a_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1a_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/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 253410f53553d69ef02e4dba1b07bb26de7bec75 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 10:28:00,982 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:28:00,983 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:28:00,989 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:28:00,989 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:28:00,989 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:28:00,990 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:28:00,991 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:28:00,992 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:28:00,992 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:28:00,993 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:28:00,993 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:28:00,994 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:28:00,994 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:28:00,995 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:28:00,995 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:28:00,995 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:28:00,996 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:28:00,997 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:28:00,998 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:28:00,999 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:28:00,999 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:28:01,000 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:28:01,000 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:28:01,001 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:28:01,001 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:28:01,001 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:28:01,002 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:28:01,002 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:28:01,003 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:28:01,003 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:28:01,003 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:28:01,003 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:28:01,004 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:28:01,004 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:28:01,004 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:28:01,005 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 10:28:01,012 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:28:01,012 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:28:01,012 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:28:01,012 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:28:01,013 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 10:28:01,013 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 10:28:01,013 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 10:28:01,013 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:28:01,013 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:28:01,013 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:28:01,013 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:28:01,013 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:28:01,013 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:28:01,014 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:28:01,014 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:28:01,014 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:28:01,014 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:28:01,014 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 10:28:01,014 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:28:01,014 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:28:01,014 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:28:01,014 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:28:01,014 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:28:01,014 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:28:01,015 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:28:01,015 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:28:01,015 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:28:01,015 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 10:28:01,015 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:28:01,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:28:01,015 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_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/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 -> 253410f53553d69ef02e4dba1b07bb26de7bec75 [2018-12-09 10:28:01,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:28:01,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:28:01,046 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:28:01,047 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:28:01,047 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:28:01,048 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/bin-2019/uautomizer/../../sv-benchmarks/c/ssh-simplified/s3_srvr_1a_true-unreach-call_false-termination.cil.c [2018-12-09 10:28:01,091 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/bin-2019/uautomizer/data/29677901b/7b06c3100dbb4fa79e790fc0b71d8922/FLAG2f40282ad [2018-12-09 10:28:01,519 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:28:01,519 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/sv-benchmarks/c/ssh-simplified/s3_srvr_1a_true-unreach-call_false-termination.cil.c [2018-12-09 10:28:01,523 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/bin-2019/uautomizer/data/29677901b/7b06c3100dbb4fa79e790fc0b71d8922/FLAG2f40282ad [2018-12-09 10:28:01,531 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/bin-2019/uautomizer/data/29677901b/7b06c3100dbb4fa79e790fc0b71d8922 [2018-12-09 10:28:01,532 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:28:01,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:28:01,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:28:01,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:28:01,536 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:28:01,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:28:01" (1/1) ... [2018-12-09 10:28:01,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14177125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01, skipping insertion in model container [2018-12-09 10:28:01,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:28:01" (1/1) ... [2018-12-09 10:28:01,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:28:01,557 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:28:01,650 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:28:01,652 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:28:01,667 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:28:01,674 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:28:01,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01 WrapperNode [2018-12-09 10:28:01,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:28:01,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:28:01,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:28:01,675 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:28:01,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01" (1/1) ... [2018-12-09 10:28:01,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01" (1/1) ... [2018-12-09 10:28:01,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:28:01,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:28:01,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:28:01,688 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:28:01,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01" (1/1) ... [2018-12-09 10:28:01,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01" (1/1) ... [2018-12-09 10:28:01,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01" (1/1) ... [2018-12-09 10:28:01,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01" (1/1) ... [2018-12-09 10:28:01,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01" (1/1) ... [2018-12-09 10:28:01,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01" (1/1) ... [2018-12-09 10:28:01,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01" (1/1) ... [2018-12-09 10:28:01,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:28:01,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:28:01,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:28:01,730 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:28:01,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:28:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:28:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:28:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:28:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:28:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:28:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:28:01,919 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:28:01,920 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 10:28:01,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:28:01 BoogieIcfgContainer [2018-12-09 10:28:01,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:28:01,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:28:01,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:28:01,923 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:28:01,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:28:01" (1/3) ... [2018-12-09 10:28:01,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f95e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:28:01, skipping insertion in model container [2018-12-09 10:28:01,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:28:01" (2/3) ... [2018-12-09 10:28:01,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f95e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:28:01, skipping insertion in model container [2018-12-09 10:28:01,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:28:01" (3/3) ... [2018-12-09 10:28:01,926 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a_true-unreach-call_false-termination.cil.c [2018-12-09 10:28:01,932 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:28:01,936 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:28:01,946 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:28:01,966 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 10:28:01,966 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:28:01,966 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:28:01,967 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:28:01,967 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:28:01,967 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:28:01,967 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:28:01,967 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:28:01,967 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:28:01,978 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-09 10:28:01,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 10:28:01,982 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:28:01,982 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:28:01,984 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:28:01,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:28:01,987 INFO L82 PathProgramCache]: Analyzing trace with hash 2008919768, now seen corresponding path program 1 times [2018-12-09 10:28:01,988 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:28:01,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:28:02,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:28:02,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:28:02,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:28:02,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:28:02,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:28:02,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:28:02,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:28:02,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:28:02,087 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2018-12-09 10:28:02,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:28:02,143 INFO L93 Difference]: Finished difference Result 136 states and 224 transitions. [2018-12-09 10:28:02,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:28:02,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-09 10:28:02,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:28:02,151 INFO L225 Difference]: With dead ends: 136 [2018-12-09 10:28:02,151 INFO L226 Difference]: Without dead ends: 83 [2018-12-09 10:28:02,153 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 [2018-12-09 10:28:02,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-12-09 10:28:02,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-12-09 10:28:02,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-12-09 10:28:02,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 126 transitions. [2018-12-09 10:28:02,179 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 126 transitions. Word has length 8 [2018-12-09 10:28:02,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:28:02,179 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 126 transitions. [2018-12-09 10:28:02,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:28:02,179 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 126 transitions. [2018-12-09 10:28:02,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 10:28:02,180 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:28:02,180 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:28:02,180 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:28:02,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:28:02,180 INFO L82 PathProgramCache]: Analyzing trace with hash 2066454160, now seen corresponding path program 1 times [2018-12-09 10:28:02,180 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:28:02,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:28:02,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:28:02,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:28:02,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:28:02,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:28:02,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:28:02,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:28:02,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:28:02,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:28:02,202 INFO L87 Difference]: Start difference. First operand 83 states and 126 transitions. Second operand 3 states. [2018-12-09 10:28:02,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:28:02,242 INFO L93 Difference]: Finished difference Result 161 states and 253 transitions. [2018-12-09 10:28:02,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:28:02,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-12-09 10:28:02,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:28:02,243 INFO L225 Difference]: With dead ends: 161 [2018-12-09 10:28:02,243 INFO L226 Difference]: Without dead ends: 121 [2018-12-09 10:28:02,244 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 [2018-12-09 10:28:02,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-09 10:28:02,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-12-09 10:28:02,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-12-09 10:28:02,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 184 transitions. [2018-12-09 10:28:02,252 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 184 transitions. Word has length 13 [2018-12-09 10:28:02,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:28:02,253 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 184 transitions. [2018-12-09 10:28:02,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:28:02,253 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 184 transitions. [2018-12-09 10:28:02,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 10:28:02,253 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:28:02,253 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:28:02,254 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:28:02,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:28:02,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1216248382, now seen corresponding path program 1 times [2018-12-09 10:28:02,254 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:28:02,254 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:28:02,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:28:02,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:28:02,269 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 10:28:02,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:28:02,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:28:02,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:28:02,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:28:02,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:28:02,270 INFO L87 Difference]: Start difference. First operand 121 states and 184 transitions. Second operand 3 states. [2018-12-09 10:28:02,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:28:02,303 INFO L93 Difference]: Finished difference Result 237 states and 369 transitions. [2018-12-09 10:28:02,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:28:02,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-09 10:28:02,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:28:02,305 INFO L225 Difference]: With dead ends: 237 [2018-12-09 10:28:02,305 INFO L226 Difference]: Without dead ends: 159 [2018-12-09 10:28:02,305 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 [2018-12-09 10:28:02,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-12-09 10:28:02,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-12-09 10:28:02,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-12-09 10:28:02,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 243 transitions. [2018-12-09 10:28:02,315 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 243 transitions. Word has length 19 [2018-12-09 10:28:02,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:28:02,315 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 243 transitions. [2018-12-09 10:28:02,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:28:02,315 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 243 transitions. [2018-12-09 10:28:02,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-09 10:28:02,316 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:28:02,316 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 2, 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] [2018-12-09 10:28:02,316 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:28:02,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:28:02,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1623728883, now seen corresponding path program 1 times [2018-12-09 10:28:02,317 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:28:02,317 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:28:02,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:28:02,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:28:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 10:28:02,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:28:02,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:28:02,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:28:02,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:28:02,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:28:02,336 INFO L87 Difference]: Start difference. First operand 159 states and 243 transitions. Second operand 3 states. [2018-12-09 10:28:02,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:28:02,401 INFO L93 Difference]: Finished difference Result 371 states and 583 transitions. [2018-12-09 10:28:02,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:28:02,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2018-12-09 10:28:02,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:28:02,402 INFO L225 Difference]: With dead ends: 371 [2018-12-09 10:28:02,403 INFO L226 Difference]: Without dead ends: 217 [2018-12-09 10:28:02,403 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 [2018-12-09 10:28:02,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-12-09 10:28:02,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 211. [2018-12-09 10:28:02,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-12-09 10:28:02,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 295 transitions. [2018-12-09 10:28:02,413 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 295 transitions. Word has length 34 [2018-12-09 10:28:02,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:28:02,413 INFO L480 AbstractCegarLoop]: Abstraction has 211 states and 295 transitions. [2018-12-09 10:28:02,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:28:02,414 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 295 transitions. [2018-12-09 10:28:02,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-12-09 10:28:02,415 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:28:02,415 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:28:02,415 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:28:02,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:28:02,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1694730092, now seen corresponding path program 1 times [2018-12-09 10:28:02,416 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:28:02,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:28:02,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:28:02,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:28:02,437 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 10:28:02,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:28:02,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:28:02,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:28:02,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:28:02,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:28:02,438 INFO L87 Difference]: Start difference. First operand 211 states and 295 transitions. Second operand 3 states. [2018-12-09 10:28:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:28:02,469 INFO L93 Difference]: Finished difference Result 419 states and 592 transitions. [2018-12-09 10:28:02,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:28:02,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-12-09 10:28:02,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:28:02,470 INFO L225 Difference]: With dead ends: 419 [2018-12-09 10:28:02,470 INFO L226 Difference]: Without dead ends: 264 [2018-12-09 10:28:02,470 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 [2018-12-09 10:28:02,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-12-09 10:28:02,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2018-12-09 10:28:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-12-09 10:28:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 369 transitions. [2018-12-09 10:28:02,478 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 369 transitions. Word has length 48 [2018-12-09 10:28:02,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:28:02,478 INFO L480 AbstractCegarLoop]: Abstraction has 262 states and 369 transitions. [2018-12-09 10:28:02,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:28:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 369 transitions. [2018-12-09 10:28:02,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 10:28:02,479 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:28:02,480 INFO L402 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:28:02,480 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:28:02,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:28:02,480 INFO L82 PathProgramCache]: Analyzing trace with hash 365198397, now seen corresponding path program 1 times [2018-12-09 10:28:02,480 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:28:02,480 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:28:02,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:28:02,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:28:02,495 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-12-09 10:28:02,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:28:02,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:28:02,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:28:02,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:28:02,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:28:02,496 INFO L87 Difference]: Start difference. First operand 262 states and 369 transitions. Second operand 3 states. [2018-12-09 10:28:02,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:28:02,555 INFO L93 Difference]: Finished difference Result 527 states and 756 transitions. [2018-12-09 10:28:02,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:28:02,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2018-12-09 10:28:02,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:28:02,557 INFO L225 Difference]: With dead ends: 527 [2018-12-09 10:28:02,557 INFO L226 Difference]: Without dead ends: 192 [2018-12-09 10:28:02,558 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 [2018-12-09 10:28:02,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2018-12-09 10:28:02,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2018-12-09 10:28:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-12-09 10:28:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 248 transitions. [2018-12-09 10:28:02,567 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 248 transitions. Word has length 51 [2018-12-09 10:28:02,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:28:02,568 INFO L480 AbstractCegarLoop]: Abstraction has 189 states and 248 transitions. [2018-12-09 10:28:02,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:28:02,568 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 248 transitions. [2018-12-09 10:28:02,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-09 10:28:02,570 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:28:02,570 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:28:02,570 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:28:02,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:28:02,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1939547864, now seen corresponding path program 1 times [2018-12-09 10:28:02,571 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:28:02,571 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:28:02,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:28:02,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:28:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:28:02,607 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-09 10:28:02,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:28:02,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:28:02,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:28:02,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:28:02,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:28:02,608 INFO L87 Difference]: Start difference. First operand 189 states and 248 transitions. Second operand 3 states. [2018-12-09 10:28:02,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:28:02,618 INFO L93 Difference]: Finished difference Result 310 states and 379 transitions. [2018-12-09 10:28:02,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:28:02,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2018-12-09 10:28:02,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:28:02,619 INFO L225 Difference]: With dead ends: 310 [2018-12-09 10:28:02,619 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 10:28:02,619 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 [2018-12-09 10:28:02,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 10:28:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 10:28:02,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 10:28:02,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 10:28:02,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2018-12-09 10:28:02,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:28:02,620 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 10:28:02,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:28:02,620 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 10:28:02,620 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 10:28:02,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 10:28:02,759 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 10:28:02,759 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:28:02,759 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:28:02,759 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 10:28:02,759 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 10:28:02,759 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 10:28:02,759 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 216) no Hoare annotation was computed. [2018-12-09 10:28:02,760 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 218) no Hoare annotation was computed. [2018-12-09 10:28:02,760 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 186) no Hoare annotation was computed. [2018-12-09 10:28:02,760 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 190) no Hoare annotation was computed. [2018-12-09 10:28:02,760 INFO L448 ceAbstractionStarter]: For program point L152-1(lines 75 184) no Hoare annotation was computed. [2018-12-09 10:28:02,760 INFO L448 ceAbstractionStarter]: For program point L53(lines 53 194) no Hoare annotation was computed. [2018-12-09 10:28:02,760 INFO L448 ceAbstractionStarter]: For program point L86-1(lines 75 184) no Hoare annotation was computed. [2018-12-09 10:28:02,760 INFO L444 ceAbstractionStarter]: At program point L177(lines 23 212) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8640 main_~s__state~0) .cse0 (not (= 0 main_~s__hit~0))) (<= main_~blastFlag~0 2) (and .cse0 (<= 8672 main_~s__state~0)))) [2018-12-09 10:28:02,760 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 198) no Hoare annotation was computed. [2018-12-09 10:28:02,760 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 140) no Hoare annotation was computed. [2018-12-09 10:28:02,760 INFO L444 ceAbstractionStarter]: At program point L70(lines 69 186) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 3) (not (= 0 main_~s__hit~0))) (and .cse0 (<= main_~blastFlag~0 2)))) [2018-12-09 10:28:02,760 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 202) no Hoare annotation was computed. [2018-12-09 10:28:02,760 INFO L444 ceAbstractionStarter]: At program point L62(lines 61 190) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-12-09 10:28:02,761 INFO L444 ceAbstractionStarter]: At program point L54(lines 53 194) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-12-09 10:28:02,761 INFO L444 ceAbstractionStarter]: At program point L46(lines 45 198) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-12-09 10:28:02,761 INFO L448 ceAbstractionStarter]: For program point L79-1(lines 79 81) no Hoare annotation was computed. [2018-12-09 10:28:02,761 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 9 218) no Hoare annotation was computed. [2018-12-09 10:28:02,761 INFO L448 ceAbstractionStarter]: For program point L170-1(lines 75 184) no Hoare annotation was computed. [2018-12-09 10:28:02,761 INFO L444 ceAbstractionStarter]: At program point L38(lines 37 202) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-12-09 10:28:02,761 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 205) no Hoare annotation was computed. [2018-12-09 10:28:02,761 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 9 218) the Hoare annotation is: true [2018-12-09 10:28:02,761 INFO L444 ceAbstractionStarter]: At program point L121(lines 114 123) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-12-09 10:28:02,761 INFO L444 ceAbstractionStarter]: At program point L113(lines 106 124) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-12-09 10:28:02,761 INFO L448 ceAbstractionStarter]: For program point L163-1(lines 163 165) no Hoare annotation was computed. [2018-12-09 10:28:02,761 INFO L444 ceAbstractionStarter]: At program point L31(lines 30 205) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-12-09 10:28:02,761 INFO L448 ceAbstractionStarter]: For program point L106(lines 106 124) no Hoare annotation was computed. [2018-12-09 10:28:02,761 INFO L448 ceAbstractionStarter]: For program point L73(lines 73 184) no Hoare annotation was computed. [2018-12-09 10:28:02,762 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 188) no Hoare annotation was computed. [2018-12-09 10:28:02,762 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 192) no Hoare annotation was computed. [2018-12-09 10:28:02,762 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-12-09 10:28:02,762 INFO L451 ceAbstractionStarter]: At program point L214(lines 9 218) the Hoare annotation is: true [2018-12-09 10:28:02,762 INFO L448 ceAbstractionStarter]: For program point L115(lines 115 119) no Hoare annotation was computed. [2018-12-09 10:28:02,762 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 196) no Hoare annotation was computed. [2018-12-09 10:28:02,762 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 175) no Hoare annotation was computed. [2018-12-09 10:28:02,762 INFO L448 ceAbstractionStarter]: For program point L107(lines 107 111) no Hoare annotation was computed. [2018-12-09 10:28:02,762 INFO L444 ceAbstractionStarter]: At program point L74(lines 73 184) the Hoare annotation is: (and (<= main_~blastFlag~0 3) (<= 8672 main_~s__state~0)) [2018-12-09 10:28:02,762 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 200) no Hoare annotation was computed. [2018-12-09 10:28:02,762 INFO L444 ceAbstractionStarter]: At program point L66(lines 65 188) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 3) (not (= 0 main_~s__hit~0))) (and .cse0 (<= main_~blastFlag~0 2)))) [2018-12-09 10:28:02,762 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 204) no Hoare annotation was computed. [2018-12-09 10:28:02,762 INFO L444 ceAbstractionStarter]: At program point L58(lines 57 192) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-12-09 10:28:02,763 INFO L444 ceAbstractionStarter]: At program point L50(lines 49 196) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-12-09 10:28:02,763 INFO L444 ceAbstractionStarter]: At program point L174(lines 9 218) the Hoare annotation is: false [2018-12-09 10:28:02,763 INFO L444 ceAbstractionStarter]: At program point L42(lines 41 200) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-12-09 10:28:02,763 INFO L444 ceAbstractionStarter]: At program point L34(lines 33 204) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-12-09 10:28:02,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:28:02 BoogieIcfgContainer [2018-12-09 10:28:02,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:28:02,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:28:02,773 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:28:02,773 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:28:02,774 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:28:01" (3/4) ... [2018-12-09 10:28:02,776 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 10:28:02,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 10:28:02,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 10:28:02,783 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 10:28:02,783 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 10:28:02,783 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 10:28:02,816 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9fd220eb-895d-46f1-8c58-3b4ad0be23bf/bin-2019/uautomizer/witness.graphml [2018-12-09 10:28:02,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:28:02,817 INFO L168 Benchmark]: Toolchain (without parser) took 1284.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 960.7 MB in the beginning and 942.5 MB in the end (delta: 18.2 MB). Peak memory consumption was 159.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:28:02,818 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:28:02,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.13 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 949.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:28:02,818 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.19 ms. Allocated memory is still 1.0 GB. Free memory was 949.9 MB in the beginning and 944.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:28:02,819 INFO L168 Benchmark]: Boogie Preprocessor took 41.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-09 10:28:02,819 INFO L168 Benchmark]: RCFGBuilder took 190.58 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:28:02,819 INFO L168 Benchmark]: TraceAbstraction took 852.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 942.5 MB in the end (delta: 172.0 MB). Peak memory consumption was 172.0 MB. Max. memory is 11.5 GB. [2018-12-09 10:28:02,819 INFO L168 Benchmark]: Witness Printer took 43.38 ms. Allocated memory is still 1.2 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:28:02,820 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.13 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 949.9 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 12.19 ms. Allocated memory is still 1.0 GB. Free memory was 949.9 MB in the beginning and 944.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 190.58 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 852.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 942.5 MB in the end (delta: 172.0 MB). Peak memory consumption was 172.0 MB. Max. memory is 11.5 GB. * Witness Printer took 43.38 ms. Allocated memory is still 1.2 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 216]: 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: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || (8640 <= s__state && blastFlag <= 2) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || (8640 <= s__state && blastFlag <= 2) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || blastFlag <= 2) || (blastFlag <= 3 && 8672 <= s__state) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8672 <= s__state - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 50 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 457 SDtfs, 250 SDslu, 321 SDs, 0 SdLazy, 196 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=262occurred 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, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 21 PreInvPairs, 86 NumberOfFragments, 106 HoareAnnotationTreeSize, 21 FomulaSimplifications, 585 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 25301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 202/202 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...