./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label31.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem02_label31.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1bc657ccc20efb39ce3d0ec95869c1509a6ea7de ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 19:45:57,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 19:45:57,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 19:45:57,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 19:45:57,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 19:45:57,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 19:45:57,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 19:45:57,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 19:45:57,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 19:45:57,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 19:45:57,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 19:45:57,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 19:45:57,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 19:45:57,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 19:45:57,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 19:45:57,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 19:45:57,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 19:45:57,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 19:45:57,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 19:45:57,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 19:45:57,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 19:45:57,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 19:45:57,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 19:45:58,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 19:45:58,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 19:45:58,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 19:45:58,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 19:45:58,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 19:45:58,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 19:45:58,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 19:45:58,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 19:45:58,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 19:45:58,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 19:45:58,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 19:45:58,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 19:45:58,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 19:45:58,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 19:45:58,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 19:45:58,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 19:45:58,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 19:45:58,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 19:45:58,019 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 19:45:58,071 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 19:45:58,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 19:45:58,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 19:45:58,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 19:45:58,075 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 19:45:58,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 19:45:58,075 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 19:45:58,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 19:45:58,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 19:45:58,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 19:45:58,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 19:45:58,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 19:45:58,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 19:45:58,078 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 19:45:58,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 19:45:58,079 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 19:45:58,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 19:45:58,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 19:45:58,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 19:45:58,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 19:45:58,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 19:45:58,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 19:45:58,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 19:45:58,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 19:45:58,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 19:45:58,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 19:45:58,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 19:45:58,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 19:45:58,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 19:45:58,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bc657ccc20efb39ce3d0ec95869c1509a6ea7de [2020-10-25 19:45:58,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 19:45:58,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 19:45:58,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 19:45:58,560 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 19:45:58,561 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 19:45:58,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label31.c [2020-10-25 19:45:58,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc2b9c11f/9217bbecc2f34d8d9c7e532efeb4678d/FLAG6599aa68f [2020-10-25 19:45:59,465 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 19:45:59,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label31.c [2020-10-25 19:45:59,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc2b9c11f/9217bbecc2f34d8d9c7e532efeb4678d/FLAG6599aa68f [2020-10-25 19:45:59,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc2b9c11f/9217bbecc2f34d8d9c7e532efeb4678d [2020-10-25 19:45:59,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 19:45:59,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 19:45:59,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 19:45:59,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 19:45:59,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 19:45:59,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:45:59" (1/1) ... [2020-10-25 19:45:59,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f60713b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:45:59, skipping insertion in model container [2020-10-25 19:45:59,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:45:59" (1/1) ... [2020-10-25 19:45:59,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 19:45:59,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 19:46:00,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:46:00,180 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 19:46:00,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:46:00,301 INFO L208 MainTranslator]: Completed translation [2020-10-25 19:46:00,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:46:00 WrapperNode [2020-10-25 19:46:00,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 19:46:00,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 19:46:00,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 19:46:00,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 19:46:00,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:46:00" (1/1) ... [2020-10-25 19:46:00,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:46:00" (1/1) ... [2020-10-25 19:46:00,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 19:46:00,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 19:46:00,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 19:46:00,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 19:46:00,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:46:00" (1/1) ... [2020-10-25 19:46:00,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:46:00" (1/1) ... [2020-10-25 19:46:00,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:46:00" (1/1) ... [2020-10-25 19:46:00,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:46:00" (1/1) ... [2020-10-25 19:46:00,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:46:00" (1/1) ... [2020-10-25 19:46:00,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:46:00" (1/1) ... [2020-10-25 19:46:00,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:46:00" (1/1) ... [2020-10-25 19:46:00,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 19:46:00,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 19:46:00,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 19:46:00,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 19:46:00,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:46:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-25 19:46:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 19:46:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 19:46:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 19:46:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 19:46:02,163 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 19:46:02,164 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 19:46:02,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:46:02 BoogieIcfgContainer [2020-10-25 19:46:02,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 19:46:02,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 19:46:02,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 19:46:02,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 19:46:02,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 07:45:59" (1/3) ... [2020-10-25 19:46:02,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0e6096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:46:02, skipping insertion in model container [2020-10-25 19:46:02,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:46:00" (2/3) ... [2020-10-25 19:46:02,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0e6096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:46:02, skipping insertion in model container [2020-10-25 19:46:02,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:46:02" (3/3) ... [2020-10-25 19:46:02,175 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label31.c [2020-10-25 19:46:02,187 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 19:46:02,192 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 19:46:02,206 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 19:46:02,234 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 19:46:02,234 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 19:46:02,234 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 19:46:02,235 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 19:46:02,235 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 19:46:02,235 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 19:46:02,235 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 19:46:02,235 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 19:46:02,255 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-10-25 19:46:02,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-25 19:46:02,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:02,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:02,270 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:02,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:02,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1691815701, now seen corresponding path program 1 times [2020-10-25 19:46:02,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:02,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896590903] [2020-10-25 19:46:02,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:02,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:46:02,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896590903] [2020-10-25 19:46:02,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:46:02,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:46:02,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412212379] [2020-10-25 19:46:02,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:02,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:02,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:02,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:02,767 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-10-25 19:46:03,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:03,806 INFO L93 Difference]: Finished difference Result 640 states and 1083 transitions. [2020-10-25 19:46:03,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:03,808 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-10-25 19:46:03,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:03,825 INFO L225 Difference]: With dead ends: 640 [2020-10-25 19:46:03,825 INFO L226 Difference]: Without dead ends: 318 [2020-10-25 19:46:03,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:03,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-25 19:46:03,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2020-10-25 19:46:03,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-10-25 19:46:03,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2020-10-25 19:46:03,899 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 116 [2020-10-25 19:46:03,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:03,901 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2020-10-25 19:46:03,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:03,901 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2020-10-25 19:46:03,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-25 19:46:03,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:03,905 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:03,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 19:46:03,906 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:03,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:03,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1919554942, now seen corresponding path program 1 times [2020-10-25 19:46:03,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:03,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957696801] [2020-10-25 19:46:03,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:04,046 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:46:04,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957696801] [2020-10-25 19:46:04,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:46:04,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:46:04,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416904257] [2020-10-25 19:46:04,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:04,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:04,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:04,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:04,050 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand 3 states. [2020-10-25 19:46:04,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:04,796 INFO L93 Difference]: Finished difference Result 910 states and 1341 transitions. [2020-10-25 19:46:04,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:04,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-10-25 19:46:04,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:04,806 INFO L225 Difference]: With dead ends: 910 [2020-10-25 19:46:04,807 INFO L226 Difference]: Without dead ends: 599 [2020-10-25 19:46:04,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:04,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-10-25 19:46:04,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 596. [2020-10-25 19:46:04,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-10-25 19:46:04,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 772 transitions. [2020-10-25 19:46:04,877 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 772 transitions. Word has length 120 [2020-10-25 19:46:04,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:04,878 INFO L481 AbstractCegarLoop]: Abstraction has 596 states and 772 transitions. [2020-10-25 19:46:04,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:04,878 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 772 transitions. [2020-10-25 19:46:04,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-25 19:46:04,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:04,886 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:04,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 19:46:04,887 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:04,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:04,887 INFO L82 PathProgramCache]: Analyzing trace with hash -676585713, now seen corresponding path program 1 times [2020-10-25 19:46:04,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:04,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433048723] [2020-10-25 19:46:04,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:04,977 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:46:04,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433048723] [2020-10-25 19:46:04,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060230144] [2020-10-25 19:46:04,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:46:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:05,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:46:05,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:46:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-25 19:46:05,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:46:05,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-25 19:46:05,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796247675] [2020-10-25 19:46:05,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:05,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:05,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:05,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:46:05,215 INFO L87 Difference]: Start difference. First operand 596 states and 772 transitions. Second operand 3 states. [2020-10-25 19:46:06,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:06,052 INFO L93 Difference]: Finished difference Result 1611 states and 2114 transitions. [2020-10-25 19:46:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:06,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-10-25 19:46:06,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:06,059 INFO L225 Difference]: With dead ends: 1611 [2020-10-25 19:46:06,059 INFO L226 Difference]: Without dead ends: 1017 [2020-10-25 19:46:06,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:46:06,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2020-10-25 19:46:06,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 737. [2020-10-25 19:46:06,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2020-10-25 19:46:06,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 987 transitions. [2020-10-25 19:46:06,096 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 987 transitions. Word has length 125 [2020-10-25 19:46:06,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:06,097 INFO L481 AbstractCegarLoop]: Abstraction has 737 states and 987 transitions. [2020-10-25 19:46:06,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:06,098 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 987 transitions. [2020-10-25 19:46:06,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-25 19:46:06,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:06,101 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:06,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-25 19:46:06,316 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:06,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:06,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1847269421, now seen corresponding path program 1 times [2020-10-25 19:46:06,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:06,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082118674] [2020-10-25 19:46:06,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:06,448 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:46:06,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082118674] [2020-10-25 19:46:06,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:46:06,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:46:06,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993034] [2020-10-25 19:46:06,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:06,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:06,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:06,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:06,457 INFO L87 Difference]: Start difference. First operand 737 states and 987 transitions. Second operand 3 states. [2020-10-25 19:46:06,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:06,846 INFO L93 Difference]: Finished difference Result 1458 states and 1954 transitions. [2020-10-25 19:46:06,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:06,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-10-25 19:46:06,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:06,851 INFO L225 Difference]: With dead ends: 1458 [2020-10-25 19:46:06,851 INFO L226 Difference]: Without dead ends: 723 [2020-10-25 19:46:06,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:06,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-10-25 19:46:06,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2020-10-25 19:46:06,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-10-25 19:46:06,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 914 transitions. [2020-10-25 19:46:06,883 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 914 transitions. Word has length 127 [2020-10-25 19:46:06,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:06,884 INFO L481 AbstractCegarLoop]: Abstraction has 723 states and 914 transitions. [2020-10-25 19:46:06,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:06,885 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 914 transitions. [2020-10-25 19:46:06,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-25 19:46:06,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:06,892 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:06,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 19:46:06,893 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:06,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:06,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1033298513, now seen corresponding path program 1 times [2020-10-25 19:46:06,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:06,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068239144] [2020-10-25 19:46:06,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:07,026 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-25 19:46:07,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068239144] [2020-10-25 19:46:07,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:46:07,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:46:07,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322125407] [2020-10-25 19:46:07,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:07,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:07,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:07,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:07,028 INFO L87 Difference]: Start difference. First operand 723 states and 914 transitions. Second operand 3 states. [2020-10-25 19:46:07,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:07,631 INFO L93 Difference]: Finished difference Result 1585 states and 2062 transitions. [2020-10-25 19:46:07,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:07,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-10-25 19:46:07,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:07,637 INFO L225 Difference]: With dead ends: 1585 [2020-10-25 19:46:07,637 INFO L226 Difference]: Without dead ends: 1004 [2020-10-25 19:46:07,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:07,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2020-10-25 19:46:07,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2020-10-25 19:46:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1004 states. [2020-10-25 19:46:07,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1245 transitions. [2020-10-25 19:46:07,687 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1245 transitions. Word has length 147 [2020-10-25 19:46:07,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:07,687 INFO L481 AbstractCegarLoop]: Abstraction has 1004 states and 1245 transitions. [2020-10-25 19:46:07,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:07,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1245 transitions. [2020-10-25 19:46:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-25 19:46:07,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:07,691 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:07,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 19:46:07,692 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:07,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:07,693 INFO L82 PathProgramCache]: Analyzing trace with hash 665192385, now seen corresponding path program 1 times [2020-10-25 19:46:07,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:07,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680488539] [2020-10-25 19:46:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-25 19:46:07,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680488539] [2020-10-25 19:46:07,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511299701] [2020-10-25 19:46:07,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:46:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:07,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:46:07,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:46:08,096 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-25 19:46:08,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:46:08,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 19:46:08,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640414495] [2020-10-25 19:46:08,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:08,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:08,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:08,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:46:08,099 INFO L87 Difference]: Start difference. First operand 1004 states and 1245 transitions. Second operand 3 states. [2020-10-25 19:46:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:08,858 INFO L93 Difference]: Finished difference Result 2427 states and 3069 transitions. [2020-10-25 19:46:08,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:08,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-10-25 19:46:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:08,868 INFO L225 Difference]: With dead ends: 2427 [2020-10-25 19:46:08,868 INFO L226 Difference]: Without dead ends: 1565 [2020-10-25 19:46:08,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:46:08,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2020-10-25 19:46:08,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2020-10-25 19:46:08,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1565 states. [2020-10-25 19:46:08,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 1871 transitions. [2020-10-25 19:46:08,907 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 1871 transitions. Word has length 169 [2020-10-25 19:46:08,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:08,913 INFO L481 AbstractCegarLoop]: Abstraction has 1565 states and 1871 transitions. [2020-10-25 19:46:08,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:08,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 1871 transitions. [2020-10-25 19:46:08,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-25 19:46:08,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:08,920 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:09,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:46:09,135 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:09,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:09,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1042199781, now seen corresponding path program 1 times [2020-10-25 19:46:09,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:09,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091986813] [2020-10-25 19:46:09,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-25 19:46:09,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091986813] [2020-10-25 19:46:09,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:46:09,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 19:46:09,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845874021] [2020-10-25 19:46:09,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 19:46:09,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:09,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 19:46:09,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:46:09,280 INFO L87 Difference]: Start difference. First operand 1565 states and 1871 transitions. Second operand 5 states. [2020-10-25 19:46:10,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:10,426 INFO L93 Difference]: Finished difference Result 3730 states and 4422 transitions. [2020-10-25 19:46:10,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 19:46:10,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2020-10-25 19:46:10,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:10,437 INFO L225 Difference]: With dead ends: 3730 [2020-10-25 19:46:10,437 INFO L226 Difference]: Without dead ends: 2021 [2020-10-25 19:46:10,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-25 19:46:10,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2020-10-25 19:46:10,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 1565. [2020-10-25 19:46:10,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1565 states. [2020-10-25 19:46:10,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 1787 transitions. [2020-10-25 19:46:10,484 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 1787 transitions. Word has length 171 [2020-10-25 19:46:10,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:10,484 INFO L481 AbstractCegarLoop]: Abstraction has 1565 states and 1787 transitions. [2020-10-25 19:46:10,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 19:46:10,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 1787 transitions. [2020-10-25 19:46:10,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-25 19:46:10,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:10,490 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:10,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 19:46:10,491 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:10,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:10,491 INFO L82 PathProgramCache]: Analyzing trace with hash -850237989, now seen corresponding path program 1 times [2020-10-25 19:46:10,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:10,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162250296] [2020-10-25 19:46:10,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:10,672 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 64 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-25 19:46:10,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162250296] [2020-10-25 19:46:10,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505468411] [2020-10-25 19:46:10,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:46:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:10,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:46:10,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:46:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-25 19:46:10,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:46:10,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-25 19:46:10,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634492708] [2020-10-25 19:46:10,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:10,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:10,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:10,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:46:10,887 INFO L87 Difference]: Start difference. First operand 1565 states and 1787 transitions. Second operand 3 states. [2020-10-25 19:46:11,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:11,466 INFO L93 Difference]: Finished difference Result 3409 states and 3955 transitions. [2020-10-25 19:46:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:11,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2020-10-25 19:46:11,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:11,477 INFO L225 Difference]: With dead ends: 3409 [2020-10-25 19:46:11,478 INFO L226 Difference]: Without dead ends: 1986 [2020-10-25 19:46:11,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:46:11,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2020-10-25 19:46:11,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1846. [2020-10-25 19:46:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1846 states. [2020-10-25 19:46:11,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2086 transitions. [2020-10-25 19:46:11,520 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2086 transitions. Word has length 175 [2020-10-25 19:46:11,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:11,521 INFO L481 AbstractCegarLoop]: Abstraction has 1846 states and 2086 transitions. [2020-10-25 19:46:11,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2086 transitions. [2020-10-25 19:46:11,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-25 19:46:11,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:11,526 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:11,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:46:11,740 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:11,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:11,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1711805663, now seen corresponding path program 1 times [2020-10-25 19:46:11,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:11,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820825745] [2020-10-25 19:46:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:11,905 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 87 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-25 19:46:11,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820825745] [2020-10-25 19:46:11,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083254687] [2020-10-25 19:46:11,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:46:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:12,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:46:12,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:46:12,061 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-25 19:46:12,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:46:12,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-25 19:46:12,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986052734] [2020-10-25 19:46:12,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:12,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:12,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:12,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:46:12,064 INFO L87 Difference]: Start difference. First operand 1846 states and 2086 transitions. Second operand 3 states. [2020-10-25 19:46:12,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:12,659 INFO L93 Difference]: Finished difference Result 3970 states and 4552 transitions. [2020-10-25 19:46:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:12,659 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-10-25 19:46:12,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:12,668 INFO L225 Difference]: With dead ends: 3970 [2020-10-25 19:46:12,668 INFO L226 Difference]: Without dead ends: 2266 [2020-10-25 19:46:12,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:46:12,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2266 states. [2020-10-25 19:46:12,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2266 to 2264. [2020-10-25 19:46:12,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2264 states. [2020-10-25 19:46:12,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 2552 transitions. [2020-10-25 19:46:12,717 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 2552 transitions. Word has length 192 [2020-10-25 19:46:12,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:12,718 INFO L481 AbstractCegarLoop]: Abstraction has 2264 states and 2552 transitions. [2020-10-25 19:46:12,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:12,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 2552 transitions. [2020-10-25 19:46:12,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-25 19:46:12,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:12,725 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:12,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:46:12,939 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:12,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:12,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1513632239, now seen corresponding path program 1 times [2020-10-25 19:46:12,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:12,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500293088] [2020-10-25 19:46:12,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-25 19:46:13,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500293088] [2020-10-25 19:46:13,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:46:13,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:46:13,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099907282] [2020-10-25 19:46:13,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:13,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:13,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:13,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:46:13,054 INFO L87 Difference]: Start difference. First operand 2264 states and 2552 transitions. Second operand 3 states. [2020-10-25 19:46:13,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:13,616 INFO L93 Difference]: Finished difference Result 5083 states and 5675 transitions. [2020-10-25 19:46:13,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:13,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-10-25 19:46:13,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:13,629 INFO L225 Difference]: With dead ends: 5083 [2020-10-25 19:46:13,629 INFO L226 Difference]: Without dead ends: 2961 [2020-10-25 19:46:13,632 INFO L677 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 [2020-10-25 19:46:13,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2020-10-25 19:46:13,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1981. [2020-10-25 19:46:13,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2020-10-25 19:46:13,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2210 transitions. [2020-10-25 19:46:13,692 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2210 transitions. Word has length 214 [2020-10-25 19:46:13,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:13,693 INFO L481 AbstractCegarLoop]: Abstraction has 1981 states and 2210 transitions. [2020-10-25 19:46:13,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:13,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2210 transitions. [2020-10-25 19:46:13,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-25 19:46:13,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:46:13,699 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:46:13,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 19:46:13,699 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:46:13,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:46:13,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1147979716, now seen corresponding path program 1 times [2020-10-25 19:46:13,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:46:13,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709527814] [2020-10-25 19:46:13,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:46:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:14,030 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 68 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:46:14,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709527814] [2020-10-25 19:46:14,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927936400] [2020-10-25 19:46:14,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:46:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:46:14,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:46:14,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:46:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-25 19:46:14,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:46:14,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-25 19:46:14,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526413943] [2020-10-25 19:46:14,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:46:14,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:46:14,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:46:14,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:46:14,208 INFO L87 Difference]: Start difference. First operand 1981 states and 2210 transitions. Second operand 3 states. [2020-10-25 19:46:14,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:46:14,757 INFO L93 Difference]: Finished difference Result 3819 states and 4274 transitions. [2020-10-25 19:46:14,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:46:14,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-10-25 19:46:14,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:46:14,759 INFO L225 Difference]: With dead ends: 3819 [2020-10-25 19:46:14,759 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 19:46:14,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 19:46:14,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 19:46:14,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 19:46:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 19:46:14,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 19:46:14,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 214 [2020-10-25 19:46:14,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:46:14,764 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 19:46:14,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:46:14,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 19:46:14,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 19:46:14,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-25 19:46:14,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 19:46:15,300 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2020-10-25 19:46:15,438 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2020-10-25 19:46:15,445 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-25 19:46:15,445 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-25 19:46:15,445 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-25 19:46:15,445 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-25 19:46:15,445 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-25 19:46:15,446 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-25 19:46:15,446 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-25 19:46:15,446 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,446 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,446 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,447 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-25 19:46:15,447 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-25 19:46:15,447 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-25 19:46:15,447 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-25 19:46:15,447 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-25 19:46:15,447 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-25 19:46:15,447 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-25 19:46:15,447 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,447 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,447 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,447 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-25 19:46:15,448 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-25 19:46:15,448 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-25 19:46:15,448 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-25 19:46:15,448 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-25 19:46:15,449 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-25 19:46:15,449 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-25 19:46:15,449 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,449 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,449 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,449 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-25 19:46:15,450 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-25 19:46:15,450 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-25 19:46:15,450 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-25 19:46:15,450 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-25 19:46:15,450 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,450 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,451 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,451 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-25 19:46:15,451 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-25 19:46:15,451 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-25 19:46:15,451 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-25 19:46:15,451 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-25 19:46:15,451 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-25 19:46:15,452 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-25 19:46:15,452 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-25 19:46:15,452 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,452 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,452 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,452 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-25 19:46:15,453 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-25 19:46:15,453 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-25 19:46:15,453 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-25 19:46:15,453 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-25 19:46:15,453 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-25 19:46:15,453 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-25 19:46:15,453 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-25 19:46:15,453 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,453 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,453 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,454 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-25 19:46:15,454 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-25 19:46:15,454 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-25 19:46:15,454 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-25 19:46:15,454 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-25 19:46:15,454 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-25 19:46:15,454 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-25 19:46:15,454 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-25 19:46:15,454 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-25 19:46:15,454 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,455 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,455 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,455 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-25 19:46:15,455 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-25 19:46:15,455 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-25 19:46:15,455 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-25 19:46:15,455 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-25 19:46:15,455 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-25 19:46:15,455 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 19:46:15,455 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,456 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,456 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,456 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-25 19:46:15,456 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-25 19:46:15,456 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-25 19:46:15,456 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-25 19:46:15,456 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-25 19:46:15,456 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-25 19:46:15,456 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-25 19:46:15,456 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-25 19:46:15,457 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,457 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,457 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,457 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-25 19:46:15,457 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-25 19:46:15,457 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-25 19:46:15,457 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-25 19:46:15,457 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-25 19:46:15,457 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,457 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,457 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,458 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-25 19:46:15,458 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 19:46:15,458 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 19:46:15,458 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-25 19:46:15,458 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-25 19:46:15,458 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-25 19:46:15,458 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-25 19:46:15,458 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-25 19:46:15,458 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-25 19:46:15,459 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-25 19:46:15,459 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-25 19:46:15,459 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-25 19:46:15,459 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-25 19:46:15,459 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,459 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,459 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-25 19:46:15,459 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-25 19:46:15,459 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-25 19:46:15,459 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-25 19:46:15,459 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-25 19:46:15,460 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-25 19:46:15,460 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-25 19:46:15,460 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-25 19:46:15,460 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-25 19:46:15,460 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 19:46:15,460 INFO L270 CegarLoopResult]: At program point L599(lines 31 600) the Hoare annotation is: (let ((.cse3 (= ~a19~0 1)) (.cse2 (not (= ~a11~0 1))) (.cse1 (= ~a25~0 0)) (.cse5 (<= 8 ~a17~0)) (.cse0 (<= ~a17~0 8)) (.cse4 (<= ~a28~0 7))) (or (and (<= 9 ~a28~0) .cse0) (and .cse1 .cse2 .cse0) (and (= ~a25~0 ~a11~0) .cse3 .cse0 .cse4) (and .cse3 .cse5 .cse2 .cse0) (and .cse1 .cse4 .cse0) (and .cse5 .cse0 .cse4))) [2020-10-25 19:46:15,461 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,461 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,461 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-25 19:46:15,461 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-25 19:46:15,461 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-25 19:46:15,461 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-25 19:46:15,461 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-25 19:46:15,461 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-25 19:46:15,461 INFO L277 CegarLoopResult]: At program point L602(lines 602 619) the Hoare annotation is: true [2020-10-25 19:46:15,462 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,462 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,462 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-25 19:46:15,462 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-25 19:46:15,462 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-25 19:46:15,462 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-25 19:46:15,462 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-25 19:46:15,462 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-25 19:46:15,462 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-25 19:46:15,462 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-25 19:46:15,463 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-25 19:46:15,463 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,463 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,463 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-25 19:46:15,463 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-25 19:46:15,463 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-25 19:46:15,463 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-25 19:46:15,463 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-25 19:46:15,463 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-25 19:46:15,464 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse3 (= ~a19~0 1)) (.cse2 (not (= ~a11~0 1))) (.cse1 (= ~a25~0 0)) (.cse5 (<= 8 ~a17~0)) (.cse0 (<= ~a17~0 8)) (.cse4 (<= ~a28~0 7))) (or (and (<= 9 ~a28~0) .cse0) (and .cse1 .cse2 .cse0) (and (= ~a25~0 ~a11~0) .cse3 .cse0 .cse4) (and .cse3 .cse5 .cse2 .cse0) (and .cse1 .cse4 .cse0) (and .cse5 .cse0 .cse4))) [2020-10-25 19:46:15,464 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,464 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,464 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-25 19:46:15,464 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-25 19:46:15,464 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-25 19:46:15,464 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-25 19:46:15,464 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-25 19:46:15,464 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,464 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,464 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-25 19:46:15,465 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-25 19:46:15,465 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-25 19:46:15,465 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-25 19:46:15,465 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-25 19:46:15,465 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-25 19:46:15,465 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-25 19:46:15,465 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-25 19:46:15,465 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-25 19:46:15,465 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,466 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,466 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-25 19:46:15,466 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,466 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 19:46:15,466 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-25 19:46:15,466 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-25 19:46:15,466 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-25 19:46:15,466 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-25 19:46:15,466 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-25 19:46:15,466 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-25 19:46:15,466 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,466 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,467 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,467 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-25 19:46:15,467 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-25 19:46:15,467 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-25 19:46:15,467 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-25 19:46:15,467 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-25 19:46:15,467 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,467 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,467 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,467 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-25 19:46:15,468 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-25 19:46:15,468 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-25 19:46:15,468 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-25 19:46:15,468 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-25 19:46:15,468 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-25 19:46:15,468 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 19:46:15,468 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,468 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,468 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,468 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-25 19:46:15,468 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-25 19:46:15,468 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-25 19:46:15,469 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-25 19:46:15,469 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-25 19:46:15,469 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-25 19:46:15,469 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-25 19:46:15,469 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-25 19:46:15,469 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,469 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,469 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,469 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-25 19:46:15,469 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-25 19:46:15,469 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-25 19:46:15,470 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-25 19:46:15,470 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-25 19:46:15,470 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,470 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,470 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-25 19:46:15,470 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-25 19:46:15,470 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-25 19:46:15,470 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-25 19:46:15,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 07:46:15 BoogieIcfgContainer [2020-10-25 19:46:15,491 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 19:46:15,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 19:46:15,492 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 19:46:15,492 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 19:46:15,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:46:02" (3/4) ... [2020-10-25 19:46:15,496 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 19:46:15,531 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 19:46:15,532 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 19:46:15,533 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:46:15,535 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:46:15,739 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 19:46:15,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 19:46:15,740 INFO L168 Benchmark]: Toolchain (without parser) took 16100.58 ms. Allocated memory was 37.7 MB in the beginning and 281.0 MB in the end (delta: 243.3 MB). Free memory was 22.0 MB in the beginning and 105.8 MB in the end (delta: -83.8 MB). Peak memory consumption was 158.6 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:15,742 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 37.7 MB. Free memory was 25.0 MB in the beginning and 25.0 MB in the end (delta: 20.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 19:46:15,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 656.34 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.4 MB in the beginning and 20.9 MB in the end (delta: 490.8 kB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:15,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.30 ms. Allocated memory is still 46.1 MB. Free memory was 20.9 MB in the beginning and 25.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:15,743 INFO L168 Benchmark]: Boogie Preprocessor took 119.28 ms. Allocated memory is still 46.1 MB. Free memory was 25.8 MB in the beginning and 21.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:15,744 INFO L168 Benchmark]: RCFGBuilder took 1618.16 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 21.4 MB in the beginning and 36.4 MB in the end (delta: -15.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:15,744 INFO L168 Benchmark]: TraceAbstraction took 13323.69 ms. Allocated memory was 69.2 MB in the beginning and 281.0 MB in the end (delta: 211.8 MB). Free memory was 36.0 MB in the beginning and 121.5 MB in the end (delta: -85.4 MB). Peak memory consumption was 126.1 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:15,744 INFO L168 Benchmark]: Witness Printer took 247.13 ms. Allocated memory is still 281.0 MB. Free memory was 121.5 MB in the beginning and 105.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-10-25 19:46:15,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 37.7 MB. Free memory was 25.0 MB in the beginning and 25.0 MB in the end (delta: 20.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 656.34 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.4 MB in the beginning and 20.9 MB in the end (delta: 490.8 kB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 123.30 ms. Allocated memory is still 46.1 MB. Free memory was 20.9 MB in the beginning and 25.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 119.28 ms. Allocated memory is still 46.1 MB. Free memory was 25.8 MB in the beginning and 21.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1618.16 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 21.4 MB in the beginning and 36.4 MB in the end (delta: -15.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13323.69 ms. Allocated memory was 69.2 MB in the beginning and 281.0 MB in the end (delta: 211.8 MB). Free memory was 36.0 MB in the beginning and 121.5 MB in the end (delta: -85.4 MB). Peak memory consumption was 126.1 MB. Max. memory is 16.1 GB. * Witness Printer took 247.13 ms. Allocated memory is still 281.0 MB. Free memory was 121.5 MB in the beginning and 105.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: (((((9 <= a28 && a17 <= 8) || ((a25 == 0 && !(a11 == 1)) && a17 <= 8)) || (((a25 == a11 && a19 == 1) && a17 <= 8) && a28 <= 7)) || (((a19 == 1 && 8 <= a17) && !(a11 == 1)) && a17 <= 8)) || ((a25 == 0 && a28 <= 7) && a17 <= 8)) || ((8 <= a17 && a17 <= 8) && a28 <= 7) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((((9 <= a28 && a17 <= 8) || ((a25 == 0 && !(a11 == 1)) && a17 <= 8)) || (((a25 == a11 && a19 == 1) && a17 <= 8) && a28 <= 7)) || (((a19 == 1 && 8 <= a17) && !(a11 == 1)) && a17 <= 8)) || ((a25 == 0 && a28 <= 7) && a17 <= 8)) || ((8 <= a17 && a17 <= 8) && a28 <= 7) - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.7s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 907 SDtfs, 1611 SDslu, 154 SDs, 0 SdLazy, 4186 SolverSat, 722 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 905 GetRequests, 877 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2264occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 1866 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 133 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2392 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 268 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2645 NumberOfCodeBlocks, 2645 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2629 ConstructedInterpolants, 0 QuantifiedInterpolants, 1290978 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1695 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 1178/1258 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...