./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.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_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/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 4f33d015f37d4475f0ca85a8ea6311ffc3e89abb .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 08:03:54,363 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 08:03:54,364 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 08:03:54,370 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 08:03:54,370 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 08:03:54,370 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 08:03:54,371 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 08:03:54,372 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 08:03:54,372 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 08:03:54,373 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 08:03:54,373 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 08:03:54,373 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 08:03:54,374 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 08:03:54,374 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 08:03:54,375 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 08:03:54,375 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 08:03:54,376 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 08:03:54,376 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 08:03:54,377 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 08:03:54,378 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 08:03:54,379 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 08:03:54,379 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 08:03:54,380 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 08:03:54,380 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 08:03:54,380 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 08:03:54,381 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 08:03:54,381 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 08:03:54,382 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 08:03:54,382 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 08:03:54,383 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 08:03:54,383 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 08:03:54,383 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 08:03:54,383 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 08:03:54,383 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 08:03:54,384 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 08:03:54,384 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 08:03:54,384 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-01 08:03:54,391 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 08:03:54,391 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 08:03:54,392 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 08:03:54,392 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 08:03:54,392 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 08:03:54,392 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 08:03:54,392 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 08:03:54,392 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 08:03:54,393 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 08:03:54,393 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 08:03:54,393 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 08:03:54,393 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 08:03:54,393 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 08:03:54,393 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 08:03:54,393 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 08:03:54,393 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 08:03:54,393 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 08:03:54,393 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 08:03:54,393 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 08:03:54,393 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 08:03:54,394 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 08:03:54,394 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 08:03:54,394 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 08:03:54,394 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 08:03:54,394 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 08:03:54,394 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 08:03:54,394 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 08:03:54,394 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 08:03:54,394 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 08:03:54,394 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 08:03:54,394 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_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/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 -> 4f33d015f37d4475f0ca85a8ea6311ffc3e89abb [2018-12-01 08:03:54,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 08:03:54,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 08:03:54,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 08:03:54,424 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 08:03:54,424 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 08:03:54,424 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/bin-2019/uautomizer/../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-12-01 08:03:54,458 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/bin-2019/uautomizer/data/051e1d671/878f88b2b4fb469cb299872038ae9de6/FLAG1798d6c10 [2018-12-01 08:03:54,865 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 08:03:54,866 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-12-01 08:03:54,870 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/bin-2019/uautomizer/data/051e1d671/878f88b2b4fb469cb299872038ae9de6/FLAG1798d6c10 [2018-12-01 08:03:54,878 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/bin-2019/uautomizer/data/051e1d671/878f88b2b4fb469cb299872038ae9de6 [2018-12-01 08:03:54,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 08:03:54,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 08:03:54,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 08:03:54,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 08:03:54,884 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 08:03:54,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:03:54" (1/1) ... [2018-12-01 08:03:54,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d92faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:54, skipping insertion in model container [2018-12-01 08:03:54,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:03:54" (1/1) ... [2018-12-01 08:03:54,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 08:03:54,900 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 08:03:54,984 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 08:03:54,986 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 08:03:54,996 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 08:03:55,004 INFO L195 MainTranslator]: Completed translation [2018-12-01 08:03:55,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:55 WrapperNode [2018-12-01 08:03:55,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 08:03:55,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 08:03:55,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 08:03:55,005 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 08:03:55,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:55" (1/1) ... [2018-12-01 08:03:55,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:55" (1/1) ... [2018-12-01 08:03:55,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 08:03:55,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 08:03:55,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 08:03:55,016 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 08:03:55,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:55" (1/1) ... [2018-12-01 08:03:55,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:55" (1/1) ... [2018-12-01 08:03:55,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:55" (1/1) ... [2018-12-01 08:03:55,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:55" (1/1) ... [2018-12-01 08:03:55,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:55" (1/1) ... [2018-12-01 08:03:55,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:55" (1/1) ... [2018-12-01 08:03:55,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:55" (1/1) ... [2018-12-01 08:03:55,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 08:03:55,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 08:03:55,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 08:03:55,059 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 08:03:55,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 08:03:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 08:03:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 08:03:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 08:03:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 08:03:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 08:03:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 08:03:55,190 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 08:03:55,190 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-01 08:03:55,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:03:55 BoogieIcfgContainer [2018-12-01 08:03:55,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 08:03:55,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 08:03:55,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 08:03:55,193 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 08:03:55,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 08:03:54" (1/3) ... [2018-12-01 08:03:55,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247d12d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 08:03:55, skipping insertion in model container [2018-12-01 08:03:55,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:03:55" (2/3) ... [2018-12-01 08:03:55,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247d12d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 08:03:55, skipping insertion in model container [2018-12-01 08:03:55,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:03:55" (3/3) ... [2018-12-01 08:03:55,195 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-12-01 08:03:55,200 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 08:03:55,205 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-01 08:03:55,214 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-01 08:03:55,231 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 08:03:55,231 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 08:03:55,231 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 08:03:55,231 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 08:03:55,231 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 08:03:55,232 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 08:03:55,232 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 08:03:55,232 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 08:03:55,232 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 08:03:55,242 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-12-01 08:03:55,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-01 08:03:55,245 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,245 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,246 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,249 INFO L82 PathProgramCache]: Analyzing trace with hash 316328318, now seen corresponding path program 1 times [2018-12-01 08:03:55,250 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,351 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-12-01 08:03:55,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,376 INFO L93 Difference]: Finished difference Result 57 states and 90 transitions. [2018-12-01 08:03:55,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-12-01 08:03:55,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,384 INFO L225 Difference]: With dead ends: 57 [2018-12-01 08:03:55,384 INFO L226 Difference]: Without dead ends: 42 [2018-12-01 08:03:55,386 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 [2018-12-01 08:03:55,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-01 08:03:55,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2018-12-01 08:03:55,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-01 08:03:55,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 49 transitions. [2018-12-01 08:03:55,408 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 49 transitions. Word has length 15 [2018-12-01 08:03:55,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,409 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 49 transitions. [2018-12-01 08:03:55,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,409 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 49 transitions. [2018-12-01 08:03:55,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-01 08:03:55,409 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,409 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,409 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,410 INFO L82 PathProgramCache]: Analyzing trace with hash -493018308, now seen corresponding path program 1 times [2018-12-01 08:03:55,410 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,433 INFO L87 Difference]: Start difference. First operand 30 states and 49 transitions. Second operand 3 states. [2018-12-01 08:03:55,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,453 INFO L93 Difference]: Finished difference Result 67 states and 112 transitions. [2018-12-01 08:03:55,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-12-01 08:03:55,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,454 INFO L225 Difference]: With dead ends: 67 [2018-12-01 08:03:55,454 INFO L226 Difference]: Without dead ends: 42 [2018-12-01 08:03:55,454 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 [2018-12-01 08:03:55,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-01 08:03:55,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-12-01 08:03:55,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-01 08:03:55,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 65 transitions. [2018-12-01 08:03:55,458 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 65 transitions. Word has length 15 [2018-12-01 08:03:55,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,458 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 65 transitions. [2018-12-01 08:03:55,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,458 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 65 transitions. [2018-12-01 08:03:55,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-01 08:03:55,458 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,459 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,459 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1216458266, now seen corresponding path program 1 times [2018-12-01 08:03:55,459 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,475 INFO L87 Difference]: Start difference. First operand 40 states and 65 transitions. Second operand 3 states. [2018-12-01 08:03:55,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,484 INFO L93 Difference]: Finished difference Result 63 states and 99 transitions. [2018-12-01 08:03:55,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-12-01 08:03:55,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,485 INFO L225 Difference]: With dead ends: 63 [2018-12-01 08:03:55,485 INFO L226 Difference]: Without dead ends: 45 [2018-12-01 08:03:55,486 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 [2018-12-01 08:03:55,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-01 08:03:55,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2018-12-01 08:03:55,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-01 08:03:55,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 67 transitions. [2018-12-01 08:03:55,489 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 67 transitions. Word has length 16 [2018-12-01 08:03:55,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,489 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 67 transitions. [2018-12-01 08:03:55,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,489 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 67 transitions. [2018-12-01 08:03:55,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-01 08:03:55,489 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,489 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,490 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1896516636, now seen corresponding path program 1 times [2018-12-01 08:03:55,490 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,505 INFO L87 Difference]: Start difference. First operand 43 states and 67 transitions. Second operand 3 states. [2018-12-01 08:03:55,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,522 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2018-12-01 08:03:55,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-12-01 08:03:55,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,523 INFO L225 Difference]: With dead ends: 76 [2018-12-01 08:03:55,523 INFO L226 Difference]: Without dead ends: 74 [2018-12-01 08:03:55,523 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 [2018-12-01 08:03:55,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-12-01 08:03:55,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 56. [2018-12-01 08:03:55,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-12-01 08:03:55,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 88 transitions. [2018-12-01 08:03:55,527 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 88 transitions. Word has length 16 [2018-12-01 08:03:55,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,527 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 88 transitions. [2018-12-01 08:03:55,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,528 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 88 transitions. [2018-12-01 08:03:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-01 08:03:55,528 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,528 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,528 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1087170010, now seen corresponding path program 1 times [2018-12-01 08:03:55,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,542 INFO L87 Difference]: Start difference. First operand 56 states and 88 transitions. Second operand 3 states. [2018-12-01 08:03:55,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,552 INFO L93 Difference]: Finished difference Result 124 states and 198 transitions. [2018-12-01 08:03:55,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-12-01 08:03:55,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,553 INFO L225 Difference]: With dead ends: 124 [2018-12-01 08:03:55,553 INFO L226 Difference]: Without dead ends: 76 [2018-12-01 08:03:55,553 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 [2018-12-01 08:03:55,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-12-01 08:03:55,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2018-12-01 08:03:55,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-12-01 08:03:55,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 114 transitions. [2018-12-01 08:03:55,558 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 114 transitions. Word has length 16 [2018-12-01 08:03:55,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,558 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 114 transitions. [2018-12-01 08:03:55,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,558 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 114 transitions. [2018-12-01 08:03:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 08:03:55,559 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,559 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,559 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1337311087, now seen corresponding path program 1 times [2018-12-01 08:03:55,559 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,577 INFO L87 Difference]: Start difference. First operand 74 states and 114 transitions. Second operand 3 states. [2018-12-01 08:03:55,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,585 INFO L93 Difference]: Finished difference Result 111 states and 169 transitions. [2018-12-01 08:03:55,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-12-01 08:03:55,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,586 INFO L225 Difference]: With dead ends: 111 [2018-12-01 08:03:55,586 INFO L226 Difference]: Without dead ends: 78 [2018-12-01 08:03:55,587 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 [2018-12-01 08:03:55,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-12-01 08:03:55,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2018-12-01 08:03:55,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-12-01 08:03:55,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 114 transitions. [2018-12-01 08:03:55,591 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 114 transitions. Word has length 17 [2018-12-01 08:03:55,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,591 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 114 transitions. [2018-12-01 08:03:55,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,591 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 114 transitions. [2018-12-01 08:03:55,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 08:03:55,592 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,592 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,592 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,592 INFO L82 PathProgramCache]: Analyzing trace with hash -657252717, now seen corresponding path program 1 times [2018-12-01 08:03:55,592 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,592 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,604 INFO L87 Difference]: Start difference. First operand 76 states and 114 transitions. Second operand 3 states. [2018-12-01 08:03:55,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,612 INFO L93 Difference]: Finished difference Result 132 states and 200 transitions. [2018-12-01 08:03:55,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-12-01 08:03:55,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,613 INFO L225 Difference]: With dead ends: 132 [2018-12-01 08:03:55,613 INFO L226 Difference]: Without dead ends: 130 [2018-12-01 08:03:55,613 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 [2018-12-01 08:03:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-12-01 08:03:55,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 104. [2018-12-01 08:03:55,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-12-01 08:03:55,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 154 transitions. [2018-12-01 08:03:55,619 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 154 transitions. Word has length 17 [2018-12-01 08:03:55,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,619 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 154 transitions. [2018-12-01 08:03:55,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 154 transitions. [2018-12-01 08:03:55,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 08:03:55,619 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,620 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,620 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1466599343, now seen corresponding path program 1 times [2018-12-01 08:03:55,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,633 INFO L87 Difference]: Start difference. First operand 104 states and 154 transitions. Second operand 3 states. [2018-12-01 08:03:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,642 INFO L93 Difference]: Finished difference Result 232 states and 344 transitions. [2018-12-01 08:03:55,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-12-01 08:03:55,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,643 INFO L225 Difference]: With dead ends: 232 [2018-12-01 08:03:55,643 INFO L226 Difference]: Without dead ends: 138 [2018-12-01 08:03:55,643 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 [2018-12-01 08:03:55,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-12-01 08:03:55,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2018-12-01 08:03:55,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-12-01 08:03:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 194 transitions. [2018-12-01 08:03:55,650 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 194 transitions. Word has length 17 [2018-12-01 08:03:55,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,650 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 194 transitions. [2018-12-01 08:03:55,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,650 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 194 transitions. [2018-12-01 08:03:55,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 08:03:55,651 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,651 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,651 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1100217935, now seen corresponding path program 1 times [2018-12-01 08:03:55,651 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,651 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,668 INFO L87 Difference]: Start difference. First operand 136 states and 194 transitions. Second operand 3 states. [2018-12-01 08:03:55,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,679 INFO L93 Difference]: Finished difference Result 204 states and 288 transitions. [2018-12-01 08:03:55,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-01 08:03:55,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,681 INFO L225 Difference]: With dead ends: 204 [2018-12-01 08:03:55,681 INFO L226 Difference]: Without dead ends: 142 [2018-12-01 08:03:55,681 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 [2018-12-01 08:03:55,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-12-01 08:03:55,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 140. [2018-12-01 08:03:55,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-12-01 08:03:55,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 194 transitions. [2018-12-01 08:03:55,691 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 194 transitions. Word has length 18 [2018-12-01 08:03:55,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,691 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 194 transitions. [2018-12-01 08:03:55,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,692 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 194 transitions. [2018-12-01 08:03:55,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 08:03:55,692 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,693 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,693 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1780276305, now seen corresponding path program 1 times [2018-12-01 08:03:55,693 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,710 INFO L87 Difference]: Start difference. First operand 140 states and 194 transitions. Second operand 3 states. [2018-12-01 08:03:55,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,723 INFO L93 Difference]: Finished difference Result 236 states and 328 transitions. [2018-12-01 08:03:55,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-01 08:03:55,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,725 INFO L225 Difference]: With dead ends: 236 [2018-12-01 08:03:55,725 INFO L226 Difference]: Without dead ends: 234 [2018-12-01 08:03:55,725 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 [2018-12-01 08:03:55,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-12-01 08:03:55,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 200. [2018-12-01 08:03:55,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-12-01 08:03:55,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 270 transitions. [2018-12-01 08:03:55,734 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 270 transitions. Word has length 18 [2018-12-01 08:03:55,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,735 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 270 transitions. [2018-12-01 08:03:55,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,735 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 270 transitions. [2018-12-01 08:03:55,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 08:03:55,736 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,736 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,736 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,736 INFO L82 PathProgramCache]: Analyzing trace with hash 970929679, now seen corresponding path program 1 times [2018-12-01 08:03:55,736 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,736 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,751 INFO L87 Difference]: Start difference. First operand 200 states and 270 transitions. Second operand 3 states. [2018-12-01 08:03:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,767 INFO L93 Difference]: Finished difference Result 444 states and 592 transitions. [2018-12-01 08:03:55,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-01 08:03:55,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,768 INFO L225 Difference]: With dead ends: 444 [2018-12-01 08:03:55,768 INFO L226 Difference]: Without dead ends: 258 [2018-12-01 08:03:55,769 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 [2018-12-01 08:03:55,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-12-01 08:03:55,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 256. [2018-12-01 08:03:55,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2018-12-01 08:03:55,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 326 transitions. [2018-12-01 08:03:55,775 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 326 transitions. Word has length 18 [2018-12-01 08:03:55,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,775 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 326 transitions. [2018-12-01 08:03:55,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,775 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 326 transitions. [2018-12-01 08:03:55,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-01 08:03:55,776 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,776 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,776 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,776 INFO L82 PathProgramCache]: Analyzing trace with hash -645793370, now seen corresponding path program 1 times [2018-12-01 08:03:55,776 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,789 INFO L87 Difference]: Start difference. First operand 256 states and 326 transitions. Second operand 3 states. [2018-12-01 08:03:55,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,803 INFO L93 Difference]: Finished difference Result 384 states and 484 transitions. [2018-12-01 08:03:55,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-01 08:03:55,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,804 INFO L225 Difference]: With dead ends: 384 [2018-12-01 08:03:55,805 INFO L226 Difference]: Without dead ends: 266 [2018-12-01 08:03:55,805 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 [2018-12-01 08:03:55,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-12-01 08:03:55,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 264. [2018-12-01 08:03:55,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2018-12-01 08:03:55,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 326 transitions. [2018-12-01 08:03:55,812 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 326 transitions. Word has length 19 [2018-12-01 08:03:55,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,813 INFO L480 AbstractCegarLoop]: Abstraction has 264 states and 326 transitions. [2018-12-01 08:03:55,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,813 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 326 transitions. [2018-12-01 08:03:55,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-01 08:03:55,813 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,813 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,813 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,814 INFO L82 PathProgramCache]: Analyzing trace with hash 34265000, now seen corresponding path program 1 times [2018-12-01 08:03:55,814 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,825 INFO L87 Difference]: Start difference. First operand 264 states and 326 transitions. Second operand 3 states. [2018-12-01 08:03:55,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,841 INFO L93 Difference]: Finished difference Result 426 states and 519 transitions. [2018-12-01 08:03:55,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-01 08:03:55,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,842 INFO L225 Difference]: With dead ends: 426 [2018-12-01 08:03:55,843 INFO L226 Difference]: Without dead ends: 424 [2018-12-01 08:03:55,843 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 [2018-12-01 08:03:55,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2018-12-01 08:03:55,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 392. [2018-12-01 08:03:55,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2018-12-01 08:03:55,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 470 transitions. [2018-12-01 08:03:55,856 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 470 transitions. Word has length 19 [2018-12-01 08:03:55,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,856 INFO L480 AbstractCegarLoop]: Abstraction has 392 states and 470 transitions. [2018-12-01 08:03:55,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,856 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 470 transitions. [2018-12-01 08:03:55,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-01 08:03:55,857 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 08:03:55,857 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:03:55,857 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 08:03:55,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:03:55,858 INFO L82 PathProgramCache]: Analyzing trace with hash -775081626, now seen corresponding path program 1 times [2018-12-01 08:03:55,858 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:03:55,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:03:55,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:03:55,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:03:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:03:55,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:03:55,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 08:03:55,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 08:03:55,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 08:03:55,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 08:03:55,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 08:03:55,876 INFO L87 Difference]: Start difference. First operand 392 states and 470 transitions. Second operand 3 states. [2018-12-01 08:03:55,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 08:03:55,892 INFO L93 Difference]: Finished difference Result 856 states and 998 transitions. [2018-12-01 08:03:55,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 08:03:55,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-01 08:03:55,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 08:03:55,893 INFO L225 Difference]: With dead ends: 856 [2018-12-01 08:03:55,893 INFO L226 Difference]: Without dead ends: 0 [2018-12-01 08:03:55,895 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 [2018-12-01 08:03:55,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-01 08:03:55,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-01 08:03:55,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-01 08:03:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 08:03:55,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-12-01 08:03:55,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 08:03:55,896 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 08:03:55,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 08:03:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-01 08:03:55,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 08:03:55,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-01 08:03:55,912 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-01 08:03:55,912 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-01 08:03:55,912 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-01 08:03:55,912 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-01 08:03:55,912 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L451 ceAbstractionStarter]: At program point L89(lines 5 93) the Hoare annotation is: true [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 4 93) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point L73-1(lines 24 88) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point L69(line 69) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 24 88) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point L53-1(lines 24 88) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 24 88) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 24 88) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 24 88) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 43) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L448 ceAbstractionStarter]: For program point L41-2(lines 24 88) no Hoare annotation was computed. [2018-12-01 08:03:55,913 INFO L451 ceAbstractionStarter]: At program point L83-1(lines 24 88) the Hoare annotation is: true [2018-12-01 08:03:55,914 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-01 08:03:55,914 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 4 93) no Hoare annotation was computed. [2018-12-01 08:03:55,914 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 24 88) no Hoare annotation was computed. [2018-12-01 08:03:55,914 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 4 93) the Hoare annotation is: true [2018-12-01 08:03:55,914 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 28) no Hoare annotation was computed. [2018-12-01 08:03:55,914 INFO L448 ceAbstractionStarter]: For program point L84(line 84) no Hoare annotation was computed. [2018-12-01 08:03:55,914 INFO L444 ceAbstractionStarter]: At program point L84-1(lines 5 93) the Hoare annotation is: false [2018-12-01 08:03:55,914 INFO L448 ceAbstractionStarter]: For program point L68-1(lines 24 88) no Hoare annotation was computed. [2018-12-01 08:03:55,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 08:03:55 BoogieIcfgContainer [2018-12-01 08:03:55,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 08:03:55,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 08:03:55,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 08:03:55,918 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 08:03:55,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:03:55" (3/4) ... [2018-12-01 08:03:55,921 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 08:03:55,925 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-01 08:03:55,925 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-01 08:03:55,928 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-01 08:03:55,928 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-01 08:03:55,928 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 08:03:55,957 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c61a5b21-8441-4ad5-9339-d9f784bd5cdb/bin-2019/uautomizer/witness.graphml [2018-12-01 08:03:55,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 08:03:55,957 INFO L168 Benchmark]: Toolchain (without parser) took 1076.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 954.4 MB in the beginning and 935.7 MB in the end (delta: 18.7 MB). Peak memory consumption was 111.5 MB. Max. memory is 11.5 GB. [2018-12-01 08:03:55,958 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 08:03:55,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 123.28 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-12-01 08:03:55,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 10.95 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 08:03:55,959 INFO L168 Benchmark]: Boogie Preprocessor took 42.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-12-01 08:03:55,959 INFO L168 Benchmark]: RCFGBuilder took 132.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-01 08:03:55,959 INFO L168 Benchmark]: TraceAbstraction took 726.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 938.4 MB in the end (delta: 138.2 MB). Peak memory consumption was 138.2 MB. Max. memory is 11.5 GB. [2018-12-01 08:03:55,959 INFO L168 Benchmark]: Witness Printer took 38.72 ms. Allocated memory is still 1.1 GB. Free memory was 938.4 MB in the beginning and 935.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 08:03:55,960 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 123.28 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 10.95 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 132.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 726.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 938.4 MB in the end (delta: 138.2 MB). Peak memory consumption was 138.2 MB. Max. memory is 11.5 GB. * Witness Printer took 38.72 ms. Allocated memory is still 1.1 GB. Free memory was 938.4 MB in the beginning and 935.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 14 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 654 SDtfs, 285 SDslu, 428 SDs, 0 SdLazy, 75 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=392occurred in iteration=13, 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, 14 MinimizatonAttempts, 138 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 42 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 6424 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...