./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label04.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer --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 a782d0524cc0b0b5c0b646ffcbe2ffba4b8b0177 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:14:49,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:14:49,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:14:49,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:14:49,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:14:49,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:14:49,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:14:49,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:14:49,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:14:49,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:14:49,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:14:49,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:14:49,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:14:49,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:14:49,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:14:49,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:14:49,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:14:49,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:14:49,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:14:49,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:14:49,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:14:49,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:14:49,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:14:49,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:14:49,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:14:49,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:14:49,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:14:49,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:14:49,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:14:49,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:14:49,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:14:49,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:14:49,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:14:49,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:14:49,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:14:49,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:14:49,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:14:49,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:14:49,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:14:49,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:14:49,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:14:49,509 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:14:49,539 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:14:49,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:14:49,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:14:49,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:14:49,542 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:14:49,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:14:49,543 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:14:49,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:14:49,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:14:49,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:14:49,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:14:49,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:14:49,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:14:49,549 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:14:49,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:14:49,550 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:14:49,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:14:49,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:14:49,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:14:49,551 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:14:49,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:14:49,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:49,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:14:49,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:14:49,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:14:49,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:14:49,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:14:49,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:14:49,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:14:49,554 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:/tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a782d0524cc0b0b5c0b646ffcbe2ffba4b8b0177 [2020-11-28 03:14:49,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:14:49,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:14:49,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:14:49,974 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:14:49,976 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:14:49,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label04.c [2020-11-28 03:14:50,071 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/data/1177201fd/b434e21cf1bd4644913bb3d60335a5bd/FLAG49e28667c [2020-11-28 03:14:50,784 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:14:50,797 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/sv-benchmarks/c/eca-rers2012/Problem01_label04.c [2020-11-28 03:14:50,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/data/1177201fd/b434e21cf1bd4644913bb3d60335a5bd/FLAG49e28667c [2020-11-28 03:14:50,951 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/data/1177201fd/b434e21cf1bd4644913bb3d60335a5bd [2020-11-28 03:14:50,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:14:50,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:14:50,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:50,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:14:50,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:14:50,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:50" (1/1) ... [2020-11-28 03:14:50,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d3f082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:50, skipping insertion in model container [2020-11-28 03:14:50,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:50" (1/1) ... [2020-11-28 03:14:50,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:14:51,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:14:51,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:51,480 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:14:51,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:51,686 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:14:51,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51 WrapperNode [2020-11-28 03:14:51,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:51,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:14:51,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:14:51,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:14:51,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:14:51,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:14:51,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:14:51,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:14:51,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:14:51,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:14:51,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:14:51,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:14:51,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:14:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:14:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:14:52,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:14:53,980 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:14:53,981 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:14:53,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:53 BoogieIcfgContainer [2020-11-28 03:14:53,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:14:53,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:14:53,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:14:53,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:14:53,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:14:50" (1/3) ... [2020-11-28 03:14:53,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592cc205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:53, skipping insertion in model container [2020-11-28 03:14:53,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (2/3) ... [2020-11-28 03:14:53,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592cc205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:53, skipping insertion in model container [2020-11-28 03:14:53,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:53" (3/3) ... [2020-11-28 03:14:53,998 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label04.c [2020-11-28 03:14:54,012 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:14:54,017 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:14:54,032 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:14:54,082 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:14:54,082 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:14:54,083 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:14:54,083 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:14:54,083 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:14:54,083 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:14:54,084 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:14:54,084 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:14:54,113 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-28 03:14:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-11-28 03:14:54,131 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:54,132 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] [2020-11-28 03:14:54,132 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:54,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:54,140 INFO L82 PathProgramCache]: Analyzing trace with hash 857742575, now seen corresponding path program 1 times [2020-11-28 03:14:54,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:54,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074456455] [2020-11-28 03:14:54,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:54,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074456455] [2020-11-28 03:14:54,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:54,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:14:54,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895949278] [2020-11-28 03:14:54,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:54,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:54,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:54,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:54,792 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-28 03:14:56,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:56,116 INFO L93 Difference]: Finished difference Result 554 states and 941 transitions. [2020-11-28 03:14:56,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:56,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-11-28 03:14:56,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:56,148 INFO L225 Difference]: With dead ends: 554 [2020-11-28 03:14:56,148 INFO L226 Difference]: Without dead ends: 266 [2020-11-28 03:14:56,172 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 [2020-11-28 03:14:56,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-28 03:14:56,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-28 03:14:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-28 03:14:56,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2020-11-28 03:14:56,290 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 96 [2020-11-28 03:14:56,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:56,292 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2020-11-28 03:14:56,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:56,292 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2020-11-28 03:14:56,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-11-28 03:14:56,298 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:56,298 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-28 03:14:56,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:14:56,299 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:56,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:56,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1186737924, now seen corresponding path program 1 times [2020-11-28 03:14:56,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:56,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238395817] [2020-11-28 03:14:56,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:56,409 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:56,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238395817] [2020-11-28 03:14:56,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:56,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:14:56,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859738913] [2020-11-28 03:14:56,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:56,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:56,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:56,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:56,421 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 3 states. [2020-11-28 03:14:57,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:57,284 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2020-11-28 03:14:57,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:57,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-11-28 03:14:57,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:57,291 INFO L225 Difference]: With dead ends: 792 [2020-11-28 03:14:57,291 INFO L226 Difference]: Without dead ends: 528 [2020-11-28 03:14:57,294 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 [2020-11-28 03:14:57,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-11-28 03:14:57,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-11-28 03:14:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-28 03:14:57,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2020-11-28 03:14:57,330 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 102 [2020-11-28 03:14:57,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:57,330 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2020-11-28 03:14:57,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:57,330 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2020-11-28 03:14:57,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-11-28 03:14:57,335 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:57,335 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-28 03:14:57,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:14:57,336 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:57,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:57,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1212901892, now seen corresponding path program 1 times [2020-11-28 03:14:57,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:57,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807873367] [2020-11-28 03:14:57,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:57,508 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 03:14:57,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807873367] [2020-11-28 03:14:57,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:57,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:14:57,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579549038] [2020-11-28 03:14:57,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:57,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:57,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:57,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:57,519 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand 3 states. [2020-11-28 03:14:58,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:58,279 INFO L93 Difference]: Finished difference Result 1578 states and 2122 transitions. [2020-11-28 03:14:58,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:58,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-11-28 03:14:58,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:58,287 INFO L225 Difference]: With dead ends: 1578 [2020-11-28 03:14:58,287 INFO L226 Difference]: Without dead ends: 1052 [2020-11-28 03:14:58,289 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 [2020-11-28 03:14:58,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-11-28 03:14:58,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2020-11-28 03:14:58,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-11-28 03:14:58,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1365 transitions. [2020-11-28 03:14:58,334 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1365 transitions. Word has length 103 [2020-11-28 03:14:58,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:58,335 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1365 transitions. [2020-11-28 03:14:58,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:58,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1365 transitions. [2020-11-28 03:14:58,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-11-28 03:14:58,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:58,342 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-11-28 03:14:58,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:14:58,342 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:58,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:58,343 INFO L82 PathProgramCache]: Analyzing trace with hash -295832496, now seen corresponding path program 1 times [2020-11-28 03:14:58,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:58,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779586245] [2020-11-28 03:14:58,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:58,416 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-28 03:14:58,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779586245] [2020-11-28 03:14:58,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:58,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:14:58,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97304391] [2020-11-28 03:14:58,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:58,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:58,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:58,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:58,419 INFO L87 Difference]: Start difference. First operand 1052 states and 1365 transitions. Second operand 3 states. [2020-11-28 03:14:59,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:59,248 INFO L93 Difference]: Finished difference Result 2888 states and 3762 transitions. [2020-11-28 03:14:59,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:59,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-11-28 03:14:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:59,262 INFO L225 Difference]: With dead ends: 2888 [2020-11-28 03:14:59,262 INFO L226 Difference]: Without dead ends: 1838 [2020-11-28 03:14:59,265 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 [2020-11-28 03:14:59,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-11-28 03:14:59,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1314. [2020-11-28 03:14:59,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-11-28 03:14:59,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1646 transitions. [2020-11-28 03:14:59,326 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1646 transitions. Word has length 116 [2020-11-28 03:14:59,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:59,326 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1646 transitions. [2020-11-28 03:14:59,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:59,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1646 transitions. [2020-11-28 03:14:59,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-11-28 03:14:59,332 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:59,332 INFO L422 BasicCegarLoop]: trace histogram [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, 1] [2020-11-28 03:14:59,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:14:59,333 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:59,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:59,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1066815200, now seen corresponding path program 1 times [2020-11-28 03:14:59,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:59,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178469479] [2020-11-28 03:14:59,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:59,474 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:59,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178469479] [2020-11-28 03:14:59,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:59,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:14:59,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205359789] [2020-11-28 03:14:59,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:59,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:59,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:59,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:59,477 INFO L87 Difference]: Start difference. First operand 1314 states and 1646 transitions. Second operand 3 states. [2020-11-28 03:15:00,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:00,422 INFO L93 Difference]: Finished difference Result 3936 states and 4933 transitions. [2020-11-28 03:15:00,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:00,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-11-28 03:15:00,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:00,441 INFO L225 Difference]: With dead ends: 3936 [2020-11-28 03:15:00,441 INFO L226 Difference]: Without dead ends: 2624 [2020-11-28 03:15:00,444 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 [2020-11-28 03:15:00,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2020-11-28 03:15:00,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2231. [2020-11-28 03:15:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-11-28 03:15:00,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2725 transitions. [2020-11-28 03:15:00,524 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2725 transitions. Word has length 119 [2020-11-28 03:15:00,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:00,525 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 2725 transitions. [2020-11-28 03:15:00,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:00,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2725 transitions. [2020-11-28 03:15:00,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-11-28 03:15:00,531 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:00,532 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-11-28 03:15:00,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:15:00,532 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:00,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:00,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1219850033, now seen corresponding path program 1 times [2020-11-28 03:15:00,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:00,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058964358] [2020-11-28 03:15:00,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:00,712 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:00,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058964358] [2020-11-28 03:15:00,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:00,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:00,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234772941] [2020-11-28 03:15:00,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:15:00,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:00,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:15:00,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:15:00,719 INFO L87 Difference]: Start difference. First operand 2231 states and 2725 transitions. Second operand 4 states. [2020-11-28 03:15:01,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:01,984 INFO L93 Difference]: Finished difference Result 4853 states and 5865 transitions. [2020-11-28 03:15:01,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:15:01,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2020-11-28 03:15:01,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:02,003 INFO L225 Difference]: With dead ends: 4853 [2020-11-28 03:15:02,003 INFO L226 Difference]: Without dead ends: 2755 [2020-11-28 03:15:02,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:15:02,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2020-11-28 03:15:02,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2362. [2020-11-28 03:15:02,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-11-28 03:15:02,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2850 transitions. [2020-11-28 03:15:02,080 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2850 transitions. Word has length 122 [2020-11-28 03:15:02,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:02,086 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2850 transitions. [2020-11-28 03:15:02,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:15:02,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2850 transitions. [2020-11-28 03:15:02,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-11-28 03:15:02,093 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:02,094 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:15:02,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:15:02,094 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:02,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:02,096 INFO L82 PathProgramCache]: Analyzing trace with hash -846357418, now seen corresponding path program 1 times [2020-11-28 03:15:02,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:02,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140393380] [2020-11-28 03:15:02,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:02,167 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 03:15:02,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140393380] [2020-11-28 03:15:02,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:02,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:15:02,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359549814] [2020-11-28 03:15:02,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:02,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:02,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:02,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:02,170 INFO L87 Difference]: Start difference. First operand 2362 states and 2850 transitions. Second operand 3 states. [2020-11-28 03:15:02,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:02,933 INFO L93 Difference]: Finished difference Result 4853 states and 5829 transitions. [2020-11-28 03:15:02,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:02,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-11-28 03:15:02,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:02,949 INFO L225 Difference]: With dead ends: 4853 [2020-11-28 03:15:02,949 INFO L226 Difference]: Without dead ends: 2362 [2020-11-28 03:15:02,953 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 [2020-11-28 03:15:02,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-11-28 03:15:03,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2020-11-28 03:15:03,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-11-28 03:15:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2637 transitions. [2020-11-28 03:15:03,023 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2637 transitions. Word has length 123 [2020-11-28 03:15:03,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:03,023 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2637 transitions. [2020-11-28 03:15:03,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2637 transitions. [2020-11-28 03:15:03,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-11-28 03:15:03,030 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:03,030 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:15:03,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:15:03,031 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:03,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:03,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1029766820, now seen corresponding path program 1 times [2020-11-28 03:15:03,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:03,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014475733] [2020-11-28 03:15:03,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:03,117 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-28 03:15:03,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014475733] [2020-11-28 03:15:03,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:03,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:15:03,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289876948] [2020-11-28 03:15:03,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:03,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:03,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:03,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:03,121 INFO L87 Difference]: Start difference. First operand 2362 states and 2637 transitions. Second operand 3 states. [2020-11-28 03:15:03,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:03,794 INFO L93 Difference]: Finished difference Result 4591 states and 5134 transitions. [2020-11-28 03:15:03,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:03,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-11-28 03:15:03,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:03,809 INFO L225 Difference]: With dead ends: 4591 [2020-11-28 03:15:03,810 INFO L226 Difference]: Without dead ends: 2362 [2020-11-28 03:15:03,813 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 [2020-11-28 03:15:03,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-11-28 03:15:03,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2020-11-28 03:15:03,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-11-28 03:15:03,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2594 transitions. [2020-11-28 03:15:03,873 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2594 transitions. Word has length 127 [2020-11-28 03:15:03,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:03,873 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2594 transitions. [2020-11-28 03:15:03,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:03,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2594 transitions. [2020-11-28 03:15:03,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-11-28 03:15:03,879 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:03,880 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-11-28 03:15:03,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:15:03,880 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:03,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:03,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1135125440, now seen corresponding path program 1 times [2020-11-28 03:15:03,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:03,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352312963] [2020-11-28 03:15:03,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:03,972 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-11-28 03:15:03,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352312963] [2020-11-28 03:15:03,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:03,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:03,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938133485] [2020-11-28 03:15:03,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:03,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:03,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:03,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:03,981 INFO L87 Difference]: Start difference. First operand 2362 states and 2594 transitions. Second operand 3 states. [2020-11-28 03:15:04,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:04,644 INFO L93 Difference]: Finished difference Result 5377 states and 5944 transitions. [2020-11-28 03:15:04,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:04,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2020-11-28 03:15:04,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:04,661 INFO L225 Difference]: With dead ends: 5377 [2020-11-28 03:15:04,661 INFO L226 Difference]: Without dead ends: 3148 [2020-11-28 03:15:04,665 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 [2020-11-28 03:15:04,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2020-11-28 03:15:04,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3017. [2020-11-28 03:15:04,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3017 states. [2020-11-28 03:15:04,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3345 transitions. [2020-11-28 03:15:04,747 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3345 transitions. Word has length 136 [2020-11-28 03:15:04,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:04,747 INFO L481 AbstractCegarLoop]: Abstraction has 3017 states and 3345 transitions. [2020-11-28 03:15:04,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:04,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3345 transitions. [2020-11-28 03:15:04,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-11-28 03:15:04,755 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:04,755 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-11-28 03:15:04,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:15:04,756 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:04,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:04,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1637391207, now seen corresponding path program 1 times [2020-11-28 03:15:04,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:04,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981490346] [2020-11-28 03:15:04,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-11-28 03:15:04,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981490346] [2020-11-28 03:15:04,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:04,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:15:04,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35981688] [2020-11-28 03:15:04,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:04,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:04,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:04,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:04,861 INFO L87 Difference]: Start difference. First operand 3017 states and 3345 transitions. Second operand 3 states. [2020-11-28 03:15:05,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:05,542 INFO L93 Difference]: Finished difference Result 6032 states and 6690 transitions. [2020-11-28 03:15:05,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:05,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-11-28 03:15:05,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:05,562 INFO L225 Difference]: With dead ends: 6032 [2020-11-28 03:15:05,562 INFO L226 Difference]: Without dead ends: 3148 [2020-11-28 03:15:05,567 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 [2020-11-28 03:15:05,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2020-11-28 03:15:05,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3017. [2020-11-28 03:15:05,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3017 states. [2020-11-28 03:15:05,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3335 transitions. [2020-11-28 03:15:05,650 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3335 transitions. Word has length 155 [2020-11-28 03:15:05,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:05,651 INFO L481 AbstractCegarLoop]: Abstraction has 3017 states and 3335 transitions. [2020-11-28 03:15:05,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:05,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3335 transitions. [2020-11-28 03:15:05,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-11-28 03:15:05,660 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:05,660 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 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] [2020-11-28 03:15:05,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:15:05,661 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:05,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:05,661 INFO L82 PathProgramCache]: Analyzing trace with hash -954415027, now seen corresponding path program 1 times [2020-11-28 03:15:05,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:05,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002290770] [2020-11-28 03:15:05,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,869 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-11-28 03:15:05,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002290770] [2020-11-28 03:15:05,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:05,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:05,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167410530] [2020-11-28 03:15:05,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:15:05,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:05,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:15:05,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:15:05,874 INFO L87 Difference]: Start difference. First operand 3017 states and 3335 transitions. Second operand 4 states. [2020-11-28 03:15:06,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:06,965 INFO L93 Difference]: Finished difference Result 6163 states and 6820 transitions. [2020-11-28 03:15:06,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:15:06,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 171 [2020-11-28 03:15:06,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:06,990 INFO L225 Difference]: With dead ends: 6163 [2020-11-28 03:15:06,990 INFO L226 Difference]: Without dead ends: 3279 [2020-11-28 03:15:06,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:15:07,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2020-11-28 03:15:07,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3017. [2020-11-28 03:15:07,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3017 states. [2020-11-28 03:15:07,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3315 transitions. [2020-11-28 03:15:07,093 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3315 transitions. Word has length 171 [2020-11-28 03:15:07,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:07,095 INFO L481 AbstractCegarLoop]: Abstraction has 3017 states and 3315 transitions. [2020-11-28 03:15:07,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:15:07,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3315 transitions. [2020-11-28 03:15:07,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-11-28 03:15:07,103 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:07,104 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:07,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:15:07,104 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:07,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:07,105 INFO L82 PathProgramCache]: Analyzing trace with hash -2143835308, now seen corresponding path program 1 times [2020-11-28 03:15:07,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:07,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718311492] [2020-11-28 03:15:07,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,282 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 130 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-28 03:15:07,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718311492] [2020-11-28 03:15:07,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140498587] [2020-11-28 03:15:07,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/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 [2020-11-28 03:15:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:15:07,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:07,780 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-11-28 03:15:07,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:15:07,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:15:07,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16077801] [2020-11-28 03:15:07,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:07,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:07,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:07,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:15:07,783 INFO L87 Difference]: Start difference. First operand 3017 states and 3315 transitions. Second operand 3 states. [2020-11-28 03:15:08,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:08,656 INFO L93 Difference]: Finished difference Result 6687 states and 7392 transitions. [2020-11-28 03:15:08,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:08,657 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-11-28 03:15:08,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:08,680 INFO L225 Difference]: With dead ends: 6687 [2020-11-28 03:15:08,680 INFO L226 Difference]: Without dead ends: 3803 [2020-11-28 03:15:08,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:15:08,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2020-11-28 03:15:08,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3148. [2020-11-28 03:15:08,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2020-11-28 03:15:08,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3458 transitions. [2020-11-28 03:15:08,790 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3458 transitions. Word has length 188 [2020-11-28 03:15:08,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:08,791 INFO L481 AbstractCegarLoop]: Abstraction has 3148 states and 3458 transitions. [2020-11-28 03:15:08,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:08,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3458 transitions. [2020-11-28 03:15:08,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-11-28 03:15:08,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:08,802 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:09,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-28 03:15:09,030 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:09,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:09,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1013321488, now seen corresponding path program 1 times [2020-11-28 03:15:09,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:09,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030790800] [2020-11-28 03:15:09,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 163 proven. 6 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-11-28 03:15:09,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030790800] [2020-11-28 03:15:09,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416518817] [2020-11-28 03:15:09,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/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 [2020-11-28 03:15:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:15:09,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-11-28 03:15:09,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:15:09,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:15:09,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086926158] [2020-11-28 03:15:09,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:09,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:09,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:09,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:15:09,567 INFO L87 Difference]: Start difference. First operand 3148 states and 3458 transitions. Second operand 3 states. [2020-11-28 03:15:10,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:10,339 INFO L93 Difference]: Finished difference Result 3543 states and 3897 transitions. [2020-11-28 03:15:10,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:10,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-11-28 03:15:10,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:10,369 INFO L225 Difference]: With dead ends: 3543 [2020-11-28 03:15:10,378 INFO L226 Difference]: Without dead ends: 3541 [2020-11-28 03:15:10,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:15:10,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3541 states. [2020-11-28 03:15:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 3410. [2020-11-28 03:15:10,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3410 states. [2020-11-28 03:15:10,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 3755 transitions. [2020-11-28 03:15:10,469 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 3755 transitions. Word has length 221 [2020-11-28 03:15:10,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:10,470 INFO L481 AbstractCegarLoop]: Abstraction has 3410 states and 3755 transitions. [2020-11-28 03:15:10,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:10,471 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 3755 transitions. [2020-11-28 03:15:10,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-11-28 03:15:10,482 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:10,482 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:10,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-28 03:15:10,696 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:10,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:10,697 INFO L82 PathProgramCache]: Analyzing trace with hash -300742697, now seen corresponding path program 1 times [2020-11-28 03:15:10,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:10,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173746501] [2020-11-28 03:15:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:11,042 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 162 proven. 49 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-28 03:15:11,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173746501] [2020-11-28 03:15:11,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869702060] [2020-11-28 03:15:11,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/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 [2020-11-28 03:15:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:11,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:15:11,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:11,266 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-11-28 03:15:11,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:15:11,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-28 03:15:11,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596894305] [2020-11-28 03:15:11,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:11,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:11,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:11,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:15:11,269 INFO L87 Difference]: Start difference. First operand 3410 states and 3755 transitions. Second operand 3 states. [2020-11-28 03:15:11,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:11,938 INFO L93 Difference]: Finished difference Result 6687 states and 7374 transitions. [2020-11-28 03:15:11,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:11,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-11-28 03:15:11,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:11,948 INFO L225 Difference]: With dead ends: 6687 [2020-11-28 03:15:11,948 INFO L226 Difference]: Without dead ends: 3410 [2020-11-28 03:15:11,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:15:11,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2020-11-28 03:15:12,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 3148. [2020-11-28 03:15:12,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2020-11-28 03:15:12,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3428 transitions. [2020-11-28 03:15:12,013 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3428 transitions. Word has length 234 [2020-11-28 03:15:12,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:12,014 INFO L481 AbstractCegarLoop]: Abstraction has 3148 states and 3428 transitions. [2020-11-28 03:15:12,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:12,014 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3428 transitions. [2020-11-28 03:15:12,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-11-28 03:15:12,024 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:12,025 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:12,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-28 03:15:12,246 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:12,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:12,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1425291763, now seen corresponding path program 1 times [2020-11-28 03:15:12,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:12,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862518130] [2020-11-28 03:15:12,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:12,412 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 194 proven. 6 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2020-11-28 03:15:12,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862518130] [2020-11-28 03:15:12,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545961900] [2020-11-28 03:15:12,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/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 [2020-11-28 03:15:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:12,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:15:12,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:12,706 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-11-28 03:15:12,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:15:12,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:15:12,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637641232] [2020-11-28 03:15:12,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:12,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:12,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:12,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:15:12,711 INFO L87 Difference]: Start difference. First operand 3148 states and 3428 transitions. Second operand 3 states. [2020-11-28 03:15:13,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:13,430 INFO L93 Difference]: Finished difference Result 6030 states and 6567 transitions. [2020-11-28 03:15:13,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:13,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2020-11-28 03:15:13,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:13,431 INFO L225 Difference]: With dead ends: 6030 [2020-11-28 03:15:13,431 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:15:13,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:15:13,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:15:13,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:15:13,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:15:13,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:15:13,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 246 [2020-11-28 03:15:13,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:13,438 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:15:13,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:13,438 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:15:13,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:15:13,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:15:13,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:15:14,060 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-11-28 03:15:14,325 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-11-28 03:15:14,328 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-28 03:15:14,328 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-28 03:15:14,328 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-28 03:15:14,328 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-28 03:15:14,328 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-28 03:15:14,328 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-28 03:15:14,328 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-28 03:15:14,328 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-28 03:15:14,329 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,329 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,329 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,329 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,329 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-28 03:15:14,329 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,329 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,329 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-28 03:15:14,329 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-28 03:15:14,330 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-28 03:15:14,330 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-28 03:15:14,330 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-28 03:15:14,330 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-28 03:15:14,330 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-28 03:15:14,330 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-28 03:15:14,330 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-28 03:15:14,330 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-28 03:15:14,330 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-28 03:15:14,331 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-28 03:15:14,331 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,331 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,331 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,331 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,331 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,331 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-28 03:15:14,331 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,331 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-28 03:15:14,332 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-28 03:15:14,332 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-28 03:15:14,332 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-28 03:15:14,332 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-28 03:15:14,332 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-28 03:15:14,332 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-28 03:15:14,332 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-28 03:15:14,332 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-28 03:15:14,332 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-28 03:15:14,332 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-28 03:15:14,333 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-28 03:15:14,333 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-28 03:15:14,333 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-28 03:15:14,333 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,333 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,333 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,333 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,333 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,333 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,334 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-28 03:15:14,334 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-28 03:15:14,334 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-28 03:15:14,334 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-28 03:15:14,334 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-28 03:15:14,334 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-28 03:15:14,334 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-28 03:15:14,334 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-28 03:15:14,334 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-28 03:15:14,335 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-28 03:15:14,335 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:15:14,335 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-28 03:15:14,335 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-28 03:15:14,335 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,335 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,335 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,335 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,335 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,335 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,336 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-28 03:15:14,336 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-28 03:15:14,336 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-28 03:15:14,336 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-28 03:15:14,336 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-28 03:15:14,336 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-28 03:15:14,336 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-28 03:15:14,336 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-28 03:15:14,336 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-28 03:15:14,337 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-28 03:15:14,337 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,337 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,337 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,337 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,337 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,337 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,337 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-28 03:15:14,339 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-28 03:15:14,339 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-28 03:15:14,340 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-28 03:15:14,340 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-28 03:15:14,340 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-28 03:15:14,340 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-28 03:15:14,340 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-28 03:15:14,340 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-28 03:15:14,341 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-28 03:15:14,341 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-28 03:15:14,341 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-28 03:15:14,341 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-28 03:15:14,341 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-28 03:15:14,341 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-28 03:15:14,342 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,342 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,342 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,342 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,342 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,342 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:15:14,343 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-28 03:15:14,343 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-28 03:15:14,343 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-28 03:15:14,343 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-28 03:15:14,343 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-28 03:15:14,343 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-28 03:15:14,344 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-28 03:15:14,344 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-28 03:15:14,344 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-28 03:15:14,345 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse2 (<= ~a8~0 13)) (.cse0 (<= ~a16~0 4)) (.cse5 (= ~a20~0 1)) (.cse12 (= ~a17~0 1))) (let ((.cse7 (<= 15 ~a8~0)) (.cse3 (not .cse12)) (.cse6 (let ((.cse11 (= ~a7~0 0))) (or (and .cse11 .cse2) (and .cse0 .cse5 .cse11 .cse12)))) (.cse10 (not .cse5)) (.cse1 (<= ~a21~0 0)) (.cse8 (<= 14 ~a8~0)) (.cse4 (= ~a21~0 1)) (.cse9 (<= ~a16~0 5))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse4 .cse5 .cse6) (and .cse4 .cse7) (and .cse8 .cse9 .cse3 .cse10) (and .cse3 .cse10 .cse7) (and .cse0 .cse5 .cse2) (and .cse9 .cse3 .cse6 .cse10) (and .cse1 .cse5 .cse2) (and .cse8 .cse4 .cse9 .cse5)))) [2020-11-28 03:15:14,345 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,345 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,345 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,346 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,346 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,346 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-28 03:15:14,346 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-28 03:15:14,346 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-28 03:15:14,346 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-28 03:15:14,347 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-28 03:15:14,347 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-28 03:15:14,347 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-28 03:15:14,347 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-28 03:15:14,347 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-28 03:15:14,347 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-28 03:15:14,348 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-28 03:15:14,348 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-28 03:15:14,348 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:15:14,348 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-28 03:15:14,348 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-28 03:15:14,348 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,349 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,349 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,349 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,349 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,349 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-28 03:15:14,349 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-28 03:15:14,349 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-28 03:15:14,350 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-28 03:15:14,350 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-28 03:15:14,350 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-28 03:15:14,350 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-28 03:15:14,350 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-28 03:15:14,350 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-28 03:15:14,351 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:15:14,351 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,351 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,351 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,351 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,351 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-28 03:15:14,352 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,352 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-28 03:15:14,352 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-28 03:15:14,352 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-28 03:15:14,352 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-28 03:15:14,352 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-28 03:15:14,353 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-28 03:15:14,353 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-28 03:15:14,353 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-28 03:15:14,353 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-28 03:15:14,353 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-28 03:15:14,353 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-28 03:15:14,354 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-28 03:15:14,354 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-28 03:15:14,354 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,354 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse2 (<= ~a8~0 13)) (.cse0 (<= ~a16~0 4)) (.cse5 (= ~a20~0 1)) (.cse12 (= ~a17~0 1))) (let ((.cse7 (<= 15 ~a8~0)) (.cse3 (not .cse12)) (.cse6 (let ((.cse11 (= ~a7~0 0))) (or (and .cse11 .cse2) (and .cse0 .cse5 .cse11 .cse12)))) (.cse10 (not .cse5)) (.cse1 (<= ~a21~0 0)) (.cse8 (<= 14 ~a8~0)) (.cse4 (= ~a21~0 1)) (.cse9 (<= ~a16~0 5))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse4 .cse5 .cse6) (and .cse4 .cse7) (and .cse8 .cse9 .cse3 .cse10) (and .cse3 .cse10 .cse7) (and .cse0 .cse5 .cse2) (and .cse9 .cse3 .cse6 .cse10) (and .cse1 .cse5 .cse2) (and .cse8 .cse4 .cse9 .cse5)))) [2020-11-28 03:15:14,355 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,355 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,355 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,355 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,355 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-28 03:15:14,355 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:15:14,356 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 03:15:14,356 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-28 03:15:14,356 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-28 03:15:14,356 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-28 03:15:14,356 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-28 03:15:14,356 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-28 03:15:14,357 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-28 03:15:14,357 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-28 03:15:14,357 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,357 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,357 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,357 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,358 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:15:14,358 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-28 03:15:14,358 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-28 03:15:14,358 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-28 03:15:14,358 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-28 03:15:14,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:14 BoogieIcfgContainer [2020-11-28 03:15:14,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:15:14,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:14,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:14,392 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:14,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:53" (3/4) ... [2020-11-28 03:15:14,396 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:15:14,426 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:15:14,428 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:15:14,429 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:15:14,431 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:15:14,629 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b3d3ff49-2bee-48c1-849a-01e8ea629cd4/bin/uautomizer/witness.graphml [2020-11-28 03:15:14,629 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:14,630 INFO L168 Benchmark]: Toolchain (without parser) took 23674.60 ms. Allocated memory was 96.5 MB in the beginning and 427.8 MB in the end (delta: 331.4 MB). Free memory was 57.7 MB in the beginning and 363.2 MB in the end (delta: -305.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:14,631 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 96.5 MB. Free memory is still 75.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:14,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.80 ms. Allocated memory is still 96.5 MB. Free memory was 57.5 MB in the beginning and 55.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:14,632 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.98 ms. Allocated memory is still 96.5 MB. Free memory was 55.1 MB in the beginning and 49.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:14,632 INFO L168 Benchmark]: Boogie Preprocessor took 73.23 ms. Allocated memory is still 96.5 MB. Free memory was 49.6 MB in the beginning and 45.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:14,633 INFO L168 Benchmark]: RCFGBuilder took 2110.82 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 44.8 MB in the beginning and 48.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:14,633 INFO L168 Benchmark]: TraceAbstraction took 20402.08 ms. Allocated memory was 123.7 MB in the beginning and 427.8 MB in the end (delta: 304.1 MB). Free memory was 47.8 MB in the beginning and 379.0 MB in the end (delta: -331.2 MB). Peak memory consumption was 168.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:14,634 INFO L168 Benchmark]: Witness Printer took 238.32 ms. Allocated memory is still 427.8 MB. Free memory was 379.0 MB in the beginning and 363.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:14,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 96.5 MB. Free memory is still 75.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 729.80 ms. Allocated memory is still 96.5 MB. Free memory was 57.5 MB in the beginning and 55.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.98 ms. Allocated memory is still 96.5 MB. Free memory was 55.1 MB in the beginning and 49.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.23 ms. Allocated memory is still 96.5 MB. Free memory was 49.6 MB in the beginning and 45.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2110.82 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 44.8 MB in the beginning and 48.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20402.08 ms. Allocated memory was 123.7 MB in the beginning and 427.8 MB in the end (delta: 304.1 MB). Free memory was 47.8 MB in the beginning and 379.0 MB in the end (delta: -331.2 MB). Peak memory consumption was 168.9 MB. Max. memory is 16.1 GB. * Witness Printer took 238.32 ms. Allocated memory is still 427.8 MB. Free memory was 379.0 MB in the beginning and 363.2 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: 12]: 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: 40]: Loop Invariant Derived loop invariant: ((((((((((a16 <= 4 && a21 <= 0) && a8 <= 13) || ((a16 <= 4 && !(a17 == 1)) && a8 <= 13)) || ((a21 == 1 && a20 == 1) && ((a7 == 0 && a8 <= 13) || (((a16 <= 4 && a20 == 1) && a7 == 0) && a17 == 1)))) || (a21 == 1 && 15 <= a8)) || (((14 <= a8 && a16 <= 5) && !(a17 == 1)) && !(a20 == 1))) || ((!(a17 == 1) && !(a20 == 1)) && 15 <= a8)) || ((a16 <= 4 && a20 == 1) && a8 <= 13)) || (((a16 <= 5 && !(a17 == 1)) && ((a7 == 0 && a8 <= 13) || (((a16 <= 4 && a20 == 1) && a7 == 0) && a17 == 1))) && !(a20 == 1))) || ((a21 <= 0 && a20 == 1) && a8 <= 13)) || (((14 <= a8 && a21 == 1) && a16 <= 5) && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((((((((a16 <= 4 && a21 <= 0) && a8 <= 13) || ((a16 <= 4 && !(a17 == 1)) && a8 <= 13)) || ((a21 == 1 && a20 == 1) && ((a7 == 0 && a8 <= 13) || (((a16 <= 4 && a20 == 1) && a7 == 0) && a17 == 1)))) || (a21 == 1 && 15 <= a8)) || (((14 <= a8 && a16 <= 5) && !(a17 == 1)) && !(a20 == 1))) || ((!(a17 == 1) && !(a20 == 1)) && 15 <= a8)) || ((a16 <= 4 && a20 == 1) && a8 <= 13)) || (((a16 <= 5 && !(a17 == 1)) && ((a7 == 0 && a8 <= 13) || (((a16 <= 4 && a20 == 1) && a7 == 0) && a17 == 1))) && !(a20 == 1))) || ((a21 <= 0 && a20 == 1) && a8 <= 13)) || (((14 <= a8 && a21 == 1) && a16 <= 5) && a20 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.5s, OverallIterations: 15, TraceHistogramMax: 7, AutomataDifference: 13.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1110 SDtfs, 1883 SDslu, 92 SDs, 0 SdLazy, 5397 SolverSat, 744 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 929 GetRequests, 899 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3410occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 15 MinimizatonAttempts, 2882 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 55 NumberOfFragments, 301 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2804 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 190 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 3148 NumberOfCodeBlocks, 3148 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3129 ConstructedInterpolants, 0 QuantifiedInterpolants, 1276198 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1811 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 2465/2532 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...