./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label55.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_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label55.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/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 f6d02704ccebd19d4e889516335451cc1dfbc560 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:55:41,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:55:41,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:55:41,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:55:41,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:55:41,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:55:41,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:55:41,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:55:41,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:55:41,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:55:41,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:55:41,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:55:41,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:55:41,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:55:41,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:55:41,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:55:41,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:55:41,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:55:41,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:55:41,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:55:41,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:55:41,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:55:41,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:55:41,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:55:41,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:55:41,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:55:41,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:55:41,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:55:41,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:55:41,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:55:41,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:55:41,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:55:41,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:55:41,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:55:41,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:55:41,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:55:41,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:55:41,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:55:41,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:55:41,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:55:41,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:55:41,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:55:41,511 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:55:41,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:55:41,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:55:41,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:55:41,514 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:55:41,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:55:41,515 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:55:41,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:55:41,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:55:41,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:55:41,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:55:41,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:55:41,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:55:41,517 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:55:41,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:55:41,518 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:55:41,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:55:41,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:55:41,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:55:41,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:55:41,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:55:41,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:55:41,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:55:41,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:55:41,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:55:41,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:55:41,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:55:41,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:55:41,521 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:55:41,521 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_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6d02704ccebd19d4e889516335451cc1dfbc560 [2020-11-30 00:55:41,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:55:41,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:55:41,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:55:41,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:55:41,913 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:55:41,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem11_label55.c [2020-11-30 00:55:41,993 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer/data/3580d7a44/1b319500763b46eba89c874787004b3d/FLAG1a38406b0 [2020-11-30 00:55:42,634 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:55:42,634 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/sv-benchmarks/c/eca-rers2012/Problem11_label55.c [2020-11-30 00:55:42,666 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer/data/3580d7a44/1b319500763b46eba89c874787004b3d/FLAG1a38406b0 [2020-11-30 00:55:42,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer/data/3580d7a44/1b319500763b46eba89c874787004b3d [2020-11-30 00:55:42,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:55:42,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:55:42,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:42,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:55:42,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:55:42,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:42" (1/1) ... [2020-11-30 00:55:42,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4aff27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:42, skipping insertion in model container [2020-11-30 00:55:42,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:42" (1/1) ... [2020-11-30 00:55:42,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:55:42,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:55:43,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:43,675 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:55:43,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:43,955 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:55:43,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:43 WrapperNode [2020-11-30 00:55:43,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:43,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:43,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:55:43,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:55:43,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:43" (1/1) ... [2020-11-30 00:55:44,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:43" (1/1) ... [2020-11-30 00:55:44,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:44,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:55:44,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:55:44,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:55:44,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:43" (1/1) ... [2020-11-30 00:55:44,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:43" (1/1) ... [2020-11-30 00:55:44,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:43" (1/1) ... [2020-11-30 00:55:44,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:43" (1/1) ... [2020-11-30 00:55:44,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:43" (1/1) ... [2020-11-30 00:55:44,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:43" (1/1) ... [2020-11-30 00:55:44,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:43" (1/1) ... [2020-11-30 00:55:44,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:55:44,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:55:44,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:55:44,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:55:44,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/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 [2020-11-30 00:55:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:55:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:55:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:55:44,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:55:47,404 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:55:47,407 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:55:47,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:47 BoogieIcfgContainer [2020-11-30 00:55:47,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:55:47,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:55:47,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:55:47,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:55:47,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:55:42" (1/3) ... [2020-11-30 00:55:47,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7b40c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:55:47, skipping insertion in model container [2020-11-30 00:55:47,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:43" (2/3) ... [2020-11-30 00:55:47,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7b40c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:55:47, skipping insertion in model container [2020-11-30 00:55:47,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:47" (3/3) ... [2020-11-30 00:55:47,423 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label55.c [2020-11-30 00:55:47,439 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:55:47,444 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:55:47,458 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:55:47,506 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:55:47,506 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:55:47,506 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:55:47,507 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:55:47,507 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:55:47,507 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:55:47,507 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:55:47,507 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:55:47,536 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-11-30 00:55:47,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-30 00:55:47,545 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:47,546 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] [2020-11-30 00:55:47,546 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:47,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:47,553 INFO L82 PathProgramCache]: Analyzing trace with hash -2068820151, now seen corresponding path program 1 times [2020-11-30 00:55:47,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:47,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89178371] [2020-11-30 00:55:47,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:47,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89178371] [2020-11-30 00:55:47,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:47,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:55:47,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504263678] [2020-11-30 00:55:47,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:55:47,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:47,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:55:47,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:55:47,912 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-11-30 00:55:49,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:49,950 INFO L93 Difference]: Finished difference Result 762 states and 1346 transitions. [2020-11-30 00:55:49,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:55:49,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-11-30 00:55:49,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:49,990 INFO L225 Difference]: With dead ends: 762 [2020-11-30 00:55:49,991 INFO L226 Difference]: Without dead ends: 413 [2020-11-30 00:55:49,996 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 [2020-11-30 00:55:50,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-11-30 00:55:50,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2020-11-30 00:55:50,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-11-30 00:55:50,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2020-11-30 00:55:50,102 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 45 [2020-11-30 00:55:50,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:50,106 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2020-11-30 00:55:50,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:55:50,107 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2020-11-30 00:55:50,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-11-30 00:55:50,119 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:50,120 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:55:50,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:55:50,121 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:50,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:50,125 INFO L82 PathProgramCache]: Analyzing trace with hash -2063565682, now seen corresponding path program 1 times [2020-11-30 00:55:50,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:50,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353944892] [2020-11-30 00:55:50,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:50,448 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:50,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353944892] [2020-11-30 00:55:50,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:50,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:55:50,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937931135] [2020-11-30 00:55:50,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:55:50,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:50,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:55:50,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:55:50,456 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand 3 states. [2020-11-30 00:55:52,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:52,038 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2020-11-30 00:55:52,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:55:52,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-11-30 00:55:52,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:52,047 INFO L225 Difference]: With dead ends: 1211 [2020-11-30 00:55:52,047 INFO L226 Difference]: Without dead ends: 800 [2020-11-30 00:55:52,051 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 [2020-11-30 00:55:52,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-11-30 00:55:52,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2020-11-30 00:55:52,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-11-30 00:55:52,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1084 transitions. [2020-11-30 00:55:52,108 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1084 transitions. Word has length 113 [2020-11-30 00:55:52,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:52,109 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1084 transitions. [2020-11-30 00:55:52,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:55:52,110 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1084 transitions. [2020-11-30 00:55:52,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-11-30 00:55:52,117 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:52,117 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:55:52,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:55:52,118 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:52,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:52,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1100627792, now seen corresponding path program 1 times [2020-11-30 00:55:52,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:52,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362416583] [2020-11-30 00:55:52,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:52,336 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:52,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362416583] [2020-11-30 00:55:52,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:52,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:55:52,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249604732] [2020-11-30 00:55:52,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:55:52,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:52,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:55:52,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:55:52,353 INFO L87 Difference]: Start difference. First operand 789 states and 1084 transitions. Second operand 3 states. [2020-11-30 00:55:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:53,818 INFO L93 Difference]: Finished difference Result 2314 states and 3184 transitions. [2020-11-30 00:55:53,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:55:53,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-11-30 00:55:53,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:53,832 INFO L225 Difference]: With dead ends: 2314 [2020-11-30 00:55:53,832 INFO L226 Difference]: Without dead ends: 1527 [2020-11-30 00:55:53,835 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 [2020-11-30 00:55:53,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-11-30 00:55:53,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2020-11-30 00:55:53,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-11-30 00:55:53,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1857 transitions. [2020-11-30 00:55:53,885 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1857 transitions. Word has length 114 [2020-11-30 00:55:53,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:53,886 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 1857 transitions. [2020-11-30 00:55:53,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:55:53,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1857 transitions. [2020-11-30 00:55:53,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-11-30 00:55:53,898 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:53,898 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:55:53,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:55:53,899 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:53,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:53,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1354532363, now seen corresponding path program 1 times [2020-11-30 00:55:53,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:53,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621806792] [2020-11-30 00:55:53,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:54,154 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:54,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621806792] [2020-11-30 00:55:54,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:54,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:55:54,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623875738] [2020-11-30 00:55:54,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:55:54,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:54,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:55:54,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:55:54,161 INFO L87 Difference]: Start difference. First operand 1526 states and 1857 transitions. Second operand 3 states. [2020-11-30 00:55:55,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:55,839 INFO L93 Difference]: Finished difference Result 3257 states and 4126 transitions. [2020-11-30 00:55:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:55:55,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2020-11-30 00:55:55,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:55,856 INFO L225 Difference]: With dead ends: 3257 [2020-11-30 00:55:55,856 INFO L226 Difference]: Without dead ends: 1917 [2020-11-30 00:55:55,860 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 [2020-11-30 00:55:55,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2020-11-30 00:55:55,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1914. [2020-11-30 00:55:55,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2020-11-30 00:55:55,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2385 transitions. [2020-11-30 00:55:55,928 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2385 transitions. Word has length 172 [2020-11-30 00:55:55,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:55,930 INFO L481 AbstractCegarLoop]: Abstraction has 1914 states and 2385 transitions. [2020-11-30 00:55:55,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:55:55,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2385 transitions. [2020-11-30 00:55:55,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-11-30 00:55:55,942 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:55,943 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:55,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:55:55,944 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:55,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:55,944 INFO L82 PathProgramCache]: Analyzing trace with hash -974189553, now seen corresponding path program 1 times [2020-11-30 00:55:55,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:55,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688525663] [2020-11-30 00:55:55,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:56,300 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:56,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688525663] [2020-11-30 00:55:56,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:56,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:55:56,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858587108] [2020-11-30 00:55:56,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:55:56,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:56,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:55:56,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:55:56,306 INFO L87 Difference]: Start difference. First operand 1914 states and 2385 transitions. Second operand 3 states. [2020-11-30 00:55:59,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:59,849 INFO L93 Difference]: Finished difference Result 4579 states and 5797 transitions. [2020-11-30 00:55:59,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:55:59,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-11-30 00:55:59,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:59,867 INFO L225 Difference]: With dead ends: 4579 [2020-11-30 00:55:59,867 INFO L226 Difference]: Without dead ends: 2851 [2020-11-30 00:55:59,870 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 [2020-11-30 00:55:59,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2020-11-30 00:55:59,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2469. [2020-11-30 00:55:59,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2469 states. [2020-11-30 00:55:59,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2469 states to 2469 states and 3054 transitions. [2020-11-30 00:55:59,979 INFO L78 Accepts]: Start accepts. Automaton has 2469 states and 3054 transitions. Word has length 225 [2020-11-30 00:55:59,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:59,980 INFO L481 AbstractCegarLoop]: Abstraction has 2469 states and 3054 transitions. [2020-11-30 00:55:59,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:55:59,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2469 states and 3054 transitions. [2020-11-30 00:55:59,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-11-30 00:55:59,984 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:59,984 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:59,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:55:59,985 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:59,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:59,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1689706161, now seen corresponding path program 1 times [2020-11-30 00:55:59,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:59,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452511838] [2020-11-30 00:55:59,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:00,193 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-11-30 00:56:00,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452511838] [2020-11-30 00:56:00,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:00,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:56:00,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820496584] [2020-11-30 00:56:00,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:56:00,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:00,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:56:00,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:56:00,199 INFO L87 Difference]: Start difference. First operand 2469 states and 3054 transitions. Second operand 3 states. [2020-11-30 00:56:01,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:01,837 INFO L93 Difference]: Finished difference Result 5687 states and 7039 transitions. [2020-11-30 00:56:01,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:01,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2020-11-30 00:56:01,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:01,856 INFO L225 Difference]: With dead ends: 5687 [2020-11-30 00:56:01,856 INFO L226 Difference]: Without dead ends: 3036 [2020-11-30 00:56:01,860 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 [2020-11-30 00:56:01,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2020-11-30 00:56:01,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 3021. [2020-11-30 00:56:01,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3021 states. [2020-11-30 00:56:01,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3021 states to 3021 states and 3712 transitions. [2020-11-30 00:56:01,942 INFO L78 Accepts]: Start accepts. Automaton has 3021 states and 3712 transitions. Word has length 226 [2020-11-30 00:56:01,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:01,946 INFO L481 AbstractCegarLoop]: Abstraction has 3021 states and 3712 transitions. [2020-11-30 00:56:01,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:56:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 3021 states and 3712 transitions. [2020-11-30 00:56:01,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-11-30 00:56:01,952 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:01,952 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:01,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:56:01,953 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:01,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:01,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1985314964, now seen corresponding path program 1 times [2020-11-30 00:56:01,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:01,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515582424] [2020-11-30 00:56:01,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:02,174 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-11-30 00:56:02,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515582424] [2020-11-30 00:56:02,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:02,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:56:02,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435114123] [2020-11-30 00:56:02,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:56:02,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:02,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:56:02,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:56:02,178 INFO L87 Difference]: Start difference. First operand 3021 states and 3712 transitions. Second operand 3 states. [2020-11-30 00:56:04,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:04,152 INFO L93 Difference]: Finished difference Result 6786 states and 8431 transitions. [2020-11-30 00:56:04,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:04,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 227 [2020-11-30 00:56:04,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:04,181 INFO L225 Difference]: With dead ends: 6786 [2020-11-30 00:56:04,181 INFO L226 Difference]: Without dead ends: 3767 [2020-11-30 00:56:04,185 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 [2020-11-30 00:56:04,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3767 states. [2020-11-30 00:56:04,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3767 to 3573. [2020-11-30 00:56:04,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3573 states. [2020-11-30 00:56:04,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 4370 transitions. [2020-11-30 00:56:04,332 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 4370 transitions. Word has length 227 [2020-11-30 00:56:04,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:04,333 INFO L481 AbstractCegarLoop]: Abstraction has 3573 states and 4370 transitions. [2020-11-30 00:56:04,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:56:04,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 4370 transitions. [2020-11-30 00:56:04,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-11-30 00:56:04,339 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:04,339 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:56:04,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:56:04,340 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:04,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:04,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1556699590, now seen corresponding path program 1 times [2020-11-30 00:56:04,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:04,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563920185] [2020-11-30 00:56:04,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:04,628 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:04,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563920185] [2020-11-30 00:56:04,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:04,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:56:04,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488578971] [2020-11-30 00:56:04,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:04,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:04,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:04,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:04,631 INFO L87 Difference]: Start difference. First operand 3573 states and 4370 transitions. Second operand 4 states. [2020-11-30 00:56:06,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:06,633 INFO L93 Difference]: Finished difference Result 11784 states and 14585 transitions. [2020-11-30 00:56:06,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:56:06,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 247 [2020-11-30 00:56:06,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:06,678 INFO L225 Difference]: With dead ends: 11784 [2020-11-30 00:56:06,678 INFO L226 Difference]: Without dead ends: 8213 [2020-11-30 00:56:06,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:06,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8213 states. [2020-11-30 00:56:06,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8213 to 7842. [2020-11-30 00:56:06,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7842 states. [2020-11-30 00:56:06,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7842 states to 7842 states and 9345 transitions. [2020-11-30 00:56:06,917 INFO L78 Accepts]: Start accepts. Automaton has 7842 states and 9345 transitions. Word has length 247 [2020-11-30 00:56:06,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:06,918 INFO L481 AbstractCegarLoop]: Abstraction has 7842 states and 9345 transitions. [2020-11-30 00:56:06,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:06,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7842 states and 9345 transitions. [2020-11-30 00:56:06,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-11-30 00:56:06,925 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:06,925 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:56:06,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:56:06,926 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:06,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1808883617, now seen corresponding path program 1 times [2020-11-30 00:56:06,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:06,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735967620] [2020-11-30 00:56:06,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:07,149 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:07,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735967620] [2020-11-30 00:56:07,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:07,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:56:07,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367949916] [2020-11-30 00:56:07,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:07,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:07,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:07,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:07,157 INFO L87 Difference]: Start difference. First operand 7842 states and 9345 transitions. Second operand 4 states. [2020-11-30 00:56:09,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:09,646 INFO L93 Difference]: Finished difference Result 20489 states and 24734 transitions. [2020-11-30 00:56:09,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:56:09,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 257 [2020-11-30 00:56:09,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:09,762 INFO L225 Difference]: With dead ends: 20489 [2020-11-30 00:56:09,763 INFO L226 Difference]: Without dead ends: 12649 [2020-11-30 00:56:09,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:09,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12649 states. [2020-11-30 00:56:10,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12649 to 12267. [2020-11-30 00:56:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12267 states. [2020-11-30 00:56:10,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12267 states to 12267 states and 14623 transitions. [2020-11-30 00:56:10,034 INFO L78 Accepts]: Start accepts. Automaton has 12267 states and 14623 transitions. Word has length 257 [2020-11-30 00:56:10,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:10,035 INFO L481 AbstractCegarLoop]: Abstraction has 12267 states and 14623 transitions. [2020-11-30 00:56:10,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:10,035 INFO L276 IsEmpty]: Start isEmpty. Operand 12267 states and 14623 transitions. [2020-11-30 00:56:10,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-11-30 00:56:10,042 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:10,042 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:56:10,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 00:56:10,043 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:10,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:10,044 INFO L82 PathProgramCache]: Analyzing trace with hash 452234385, now seen corresponding path program 1 times [2020-11-30 00:56:10,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:10,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458084056] [2020-11-30 00:56:10,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:10,485 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 23 proven. 62 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-11-30 00:56:10,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458084056] [2020-11-30 00:56:10,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617173888] [2020-11-30 00:56:10,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/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 [2020-11-30 00:56:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:10,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:56:10,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:10,821 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-11-30 00:56:10,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:56:10,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 00:56:10,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442213971] [2020-11-30 00:56:10,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:56:10,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:10,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:56:10,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:56:10,824 INFO L87 Difference]: Start difference. First operand 12267 states and 14623 transitions. Second operand 3 states. [2020-11-30 00:56:12,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:12,639 INFO L93 Difference]: Finished difference Result 29315 states and 35139 transitions. [2020-11-30 00:56:12,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:12,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 259 [2020-11-30 00:56:12,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:12,683 INFO L225 Difference]: With dead ends: 29315 [2020-11-30 00:56:12,684 INFO L226 Difference]: Without dead ends: 16866 [2020-11-30 00:56:12,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:56:12,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16866 states. [2020-11-30 00:56:13,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16866 to 16126. [2020-11-30 00:56:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16126 states. [2020-11-30 00:56:13,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16126 states to 16126 states and 18909 transitions. [2020-11-30 00:56:13,102 INFO L78 Accepts]: Start accepts. Automaton has 16126 states and 18909 transitions. Word has length 259 [2020-11-30 00:56:13,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:13,103 INFO L481 AbstractCegarLoop]: Abstraction has 16126 states and 18909 transitions. [2020-11-30 00:56:13,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:56:13,103 INFO L276 IsEmpty]: Start isEmpty. Operand 16126 states and 18909 transitions. [2020-11-30 00:56:13,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-11-30 00:56:13,112 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:13,112 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:56:13,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-30 00:56:13,338 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:13,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:13,339 INFO L82 PathProgramCache]: Analyzing trace with hash -542938756, now seen corresponding path program 1 times [2020-11-30 00:56:13,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:13,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366548635] [2020-11-30 00:56:13,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:13,606 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-11-30 00:56:13,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366548635] [2020-11-30 00:56:13,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:13,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:56:13,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391438343] [2020-11-30 00:56:13,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:56:13,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:13,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:56:13,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:56:13,610 INFO L87 Difference]: Start difference. First operand 16126 states and 18909 transitions. Second operand 3 states. [2020-11-30 00:56:15,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:15,483 INFO L93 Difference]: Finished difference Result 32260 states and 37836 transitions. [2020-11-30 00:56:15,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:15,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-11-30 00:56:15,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:15,522 INFO L225 Difference]: With dead ends: 32260 [2020-11-30 00:56:15,522 INFO L226 Difference]: Without dead ends: 16136 [2020-11-30 00:56:15,542 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 [2020-11-30 00:56:15,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16136 states. [2020-11-30 00:56:15,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16136 to 16125. [2020-11-30 00:56:15,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16125 states. [2020-11-30 00:56:15,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16125 states to 16125 states and 18433 transitions. [2020-11-30 00:56:15,820 INFO L78 Accepts]: Start accepts. Automaton has 16125 states and 18433 transitions. Word has length 264 [2020-11-30 00:56:15,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:15,821 INFO L481 AbstractCegarLoop]: Abstraction has 16125 states and 18433 transitions. [2020-11-30 00:56:15,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:56:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand 16125 states and 18433 transitions. [2020-11-30 00:56:15,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-11-30 00:56:15,832 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:15,833 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:56:15,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 00:56:15,833 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:15,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:15,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1154639631, now seen corresponding path program 1 times [2020-11-30 00:56:15,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:15,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467003531] [2020-11-30 00:56:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:16,203 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:16,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467003531] [2020-11-30 00:56:16,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:16,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:56:16,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507253672] [2020-11-30 00:56:16,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:16,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:16,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:16,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:16,207 INFO L87 Difference]: Start difference. First operand 16125 states and 18433 transitions. Second operand 4 states. [2020-11-30 00:56:18,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:18,349 INFO L93 Difference]: Finished difference Result 30005 states and 34343 transitions. [2020-11-30 00:56:18,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:56:18,354 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 278 [2020-11-30 00:56:18,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:18,380 INFO L225 Difference]: With dead ends: 30005 [2020-11-30 00:56:18,380 INFO L226 Difference]: Without dead ends: 13514 [2020-11-30 00:56:18,395 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 [2020-11-30 00:56:18,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13514 states. [2020-11-30 00:56:18,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13514 to 10925. [2020-11-30 00:56:18,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10925 states. [2020-11-30 00:56:18,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10925 states to 10925 states and 12148 transitions. [2020-11-30 00:56:18,625 INFO L78 Accepts]: Start accepts. Automaton has 10925 states and 12148 transitions. Word has length 278 [2020-11-30 00:56:18,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:18,626 INFO L481 AbstractCegarLoop]: Abstraction has 10925 states and 12148 transitions. [2020-11-30 00:56:18,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:18,626 INFO L276 IsEmpty]: Start isEmpty. Operand 10925 states and 12148 transitions. [2020-11-30 00:56:18,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-11-30 00:56:18,638 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:18,638 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 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] [2020-11-30 00:56:18,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 00:56:18,639 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:18,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:18,639 INFO L82 PathProgramCache]: Analyzing trace with hash -241677459, now seen corresponding path program 1 times [2020-11-30 00:56:18,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:18,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787992106] [2020-11-30 00:56:18,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:18,853 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2020-11-30 00:56:18,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787992106] [2020-11-30 00:56:18,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:18,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:56:18,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022601193] [2020-11-30 00:56:18,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:56:18,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:18,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:56:18,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:56:18,860 INFO L87 Difference]: Start difference. First operand 10925 states and 12148 transitions. Second operand 3 states. [2020-11-30 00:56:19,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:19,972 INFO L93 Difference]: Finished difference Result 23871 states and 26540 transitions. [2020-11-30 00:56:19,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:19,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 312 [2020-11-30 00:56:19,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:20,004 INFO L225 Difference]: With dead ends: 23871 [2020-11-30 00:56:20,005 INFO L226 Difference]: Without dead ends: 12948 [2020-11-30 00:56:20,011 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 [2020-11-30 00:56:20,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12948 states. [2020-11-30 00:56:20,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12948 to 8343. [2020-11-30 00:56:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8343 states. [2020-11-30 00:56:20,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8343 states to 8343 states and 9312 transitions. [2020-11-30 00:56:20,148 INFO L78 Accepts]: Start accepts. Automaton has 8343 states and 9312 transitions. Word has length 312 [2020-11-30 00:56:20,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:20,148 INFO L481 AbstractCegarLoop]: Abstraction has 8343 states and 9312 transitions. [2020-11-30 00:56:20,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:56:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 8343 states and 9312 transitions. [2020-11-30 00:56:20,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-11-30 00:56:20,159 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:20,159 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-30 00:56:20,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 00:56:20,160 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:20,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:20,160 INFO L82 PathProgramCache]: Analyzing trace with hash 118025907, now seen corresponding path program 1 times [2020-11-30 00:56:20,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:20,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080756190] [2020-11-30 00:56:20,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:20,935 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 205 proven. 97 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-11-30 00:56:20,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080756190] [2020-11-30 00:56:20,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077647731] [2020-11-30 00:56:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/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 [2020-11-30 00:56:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:21,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:56:21,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:21,449 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-11-30 00:56:21,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:56:21,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-30 00:56:21,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749476542] [2020-11-30 00:56:21,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:21,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:21,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:21,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:56:21,457 INFO L87 Difference]: Start difference. First operand 8343 states and 9312 transitions. Second operand 4 states. [2020-11-30 00:56:22,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:22,977 INFO L93 Difference]: Finished difference Result 19635 states and 21862 transitions. [2020-11-30 00:56:22,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:56:22,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 332 [2020-11-30 00:56:22,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:22,997 INFO L225 Difference]: With dead ends: 19635 [2020-11-30 00:56:22,998 INFO L226 Difference]: Without dead ends: 11294 [2020-11-30 00:56:23,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:56:23,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11294 states. [2020-11-30 00:56:23,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11294 to 11108. [2020-11-30 00:56:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11108 states. [2020-11-30 00:56:23,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11108 states to 11108 states and 12348 transitions. [2020-11-30 00:56:23,159 INFO L78 Accepts]: Start accepts. Automaton has 11108 states and 12348 transitions. Word has length 332 [2020-11-30 00:56:23,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:23,160 INFO L481 AbstractCegarLoop]: Abstraction has 11108 states and 12348 transitions. [2020-11-30 00:56:23,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:23,160 INFO L276 IsEmpty]: Start isEmpty. Operand 11108 states and 12348 transitions. [2020-11-30 00:56:23,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-11-30 00:56:23,172 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:23,172 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:23,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-30 00:56:23,386 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:23,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:23,386 INFO L82 PathProgramCache]: Analyzing trace with hash 5351800, now seen corresponding path program 1 times [2020-11-30 00:56:23,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:23,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866647544] [2020-11-30 00:56:23,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-11-30 00:56:23,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866647544] [2020-11-30 00:56:23,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:23,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:56:23,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205810174] [2020-11-30 00:56:23,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:23,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:23,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:23,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:23,782 INFO L87 Difference]: Start difference. First operand 11108 states and 12348 transitions. Second operand 4 states. [2020-11-30 00:56:26,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:26,398 INFO L93 Difference]: Finished difference Result 26277 states and 29190 transitions. [2020-11-30 00:56:26,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:56:26,399 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 354 [2020-11-30 00:56:26,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:26,422 INFO L225 Difference]: With dead ends: 26277 [2020-11-30 00:56:26,422 INFO L226 Difference]: Without dead ends: 13693 [2020-11-30 00:56:26,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:26,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13693 states. [2020-11-30 00:56:26,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13693 to 10365. [2020-11-30 00:56:26,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10365 states. [2020-11-30 00:56:26,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10365 states to 10365 states and 11425 transitions. [2020-11-30 00:56:26,619 INFO L78 Accepts]: Start accepts. Automaton has 10365 states and 11425 transitions. Word has length 354 [2020-11-30 00:56:26,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:26,620 INFO L481 AbstractCegarLoop]: Abstraction has 10365 states and 11425 transitions. [2020-11-30 00:56:26,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:26,620 INFO L276 IsEmpty]: Start isEmpty. Operand 10365 states and 11425 transitions. [2020-11-30 00:56:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-11-30 00:56:26,634 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:26,635 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:26,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-30 00:56:26,637 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:26,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:26,638 INFO L82 PathProgramCache]: Analyzing trace with hash 396200587, now seen corresponding path program 1 times [2020-11-30 00:56:26,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:26,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143155593] [2020-11-30 00:56:26,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:27,115 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-11-30 00:56:27,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143155593] [2020-11-30 00:56:27,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:27,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:56:27,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554370071] [2020-11-30 00:56:27,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:27,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:27,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:27,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:27,118 INFO L87 Difference]: Start difference. First operand 10365 states and 11425 transitions. Second operand 4 states. [2020-11-30 00:56:29,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:29,427 INFO L93 Difference]: Finished difference Result 27559 states and 30332 transitions. [2020-11-30 00:56:29,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:56:29,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 382 [2020-11-30 00:56:29,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:29,442 INFO L225 Difference]: With dead ends: 27559 [2020-11-30 00:56:29,442 INFO L226 Difference]: Without dead ends: 17196 [2020-11-30 00:56:29,449 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 [2020-11-30 00:56:29,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17196 states. [2020-11-30 00:56:29,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17196 to 16079. [2020-11-30 00:56:29,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16079 states. [2020-11-30 00:56:29,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16079 states to 16079 states and 17682 transitions. [2020-11-30 00:56:29,657 INFO L78 Accepts]: Start accepts. Automaton has 16079 states and 17682 transitions. Word has length 382 [2020-11-30 00:56:29,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:29,658 INFO L481 AbstractCegarLoop]: Abstraction has 16079 states and 17682 transitions. [2020-11-30 00:56:29,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:29,658 INFO L276 IsEmpty]: Start isEmpty. Operand 16079 states and 17682 transitions. [2020-11-30 00:56:29,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2020-11-30 00:56:29,674 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:29,675 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:29,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-30 00:56:29,675 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:29,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:29,676 INFO L82 PathProgramCache]: Analyzing trace with hash 864996087, now seen corresponding path program 1 times [2020-11-30 00:56:29,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:29,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756158491] [2020-11-30 00:56:29,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-11-30 00:56:30,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756158491] [2020-11-30 00:56:30,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:30,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:56:30,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039392805] [2020-11-30 00:56:30,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:30,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:30,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:30,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:30,075 INFO L87 Difference]: Start difference. First operand 16079 states and 17682 transitions. Second operand 4 states. [2020-11-30 00:56:32,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:32,079 INFO L93 Difference]: Finished difference Result 31245 states and 34381 transitions. [2020-11-30 00:56:32,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:56:32,080 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 402 [2020-11-30 00:56:32,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:32,096 INFO L225 Difference]: With dead ends: 31245 [2020-11-30 00:56:32,096 INFO L226 Difference]: Without dead ends: 17380 [2020-11-30 00:56:32,106 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 [2020-11-30 00:56:32,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17380 states. [2020-11-30 00:56:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17380 to 16263. [2020-11-30 00:56:32,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16263 states. [2020-11-30 00:56:32,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16263 states to 16263 states and 17879 transitions. [2020-11-30 00:56:32,311 INFO L78 Accepts]: Start accepts. Automaton has 16263 states and 17879 transitions. Word has length 402 [2020-11-30 00:56:32,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:32,311 INFO L481 AbstractCegarLoop]: Abstraction has 16263 states and 17879 transitions. [2020-11-30 00:56:32,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:32,312 INFO L276 IsEmpty]: Start isEmpty. Operand 16263 states and 17879 transitions. [2020-11-30 00:56:32,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2020-11-30 00:56:32,329 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:32,330 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-30 00:56:32,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-30 00:56:32,330 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:32,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:32,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1537086877, now seen corresponding path program 1 times [2020-11-30 00:56:32,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:32,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992828067] [2020-11-30 00:56:32,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:32,998 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 360 proven. 341 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:32,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992828067] [2020-11-30 00:56:32,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701010003] [2020-11-30 00:56:32,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/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 [2020-11-30 00:56:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:33,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:56:33,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:33,415 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-11-30 00:56:33,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:56:33,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-11-30 00:56:33,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046649776] [2020-11-30 00:56:33,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:56:33,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:33,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:56:33,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:56:33,418 INFO L87 Difference]: Start difference. First operand 16263 states and 17879 transitions. Second operand 3 states. [2020-11-30 00:56:34,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:34,885 INFO L93 Difference]: Finished difference Result 36025 states and 39655 transitions. [2020-11-30 00:56:34,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:34,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 449 [2020-11-30 00:56:34,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:34,909 INFO L225 Difference]: With dead ends: 36025 [2020-11-30 00:56:34,909 INFO L226 Difference]: Without dead ends: 20132 [2020-11-30 00:56:34,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:56:34,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20132 states. [2020-11-30 00:56:35,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20132 to 16081. [2020-11-30 00:56:35,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16081 states. [2020-11-30 00:56:35,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16081 states to 16081 states and 17534 transitions. [2020-11-30 00:56:35,284 INFO L78 Accepts]: Start accepts. Automaton has 16081 states and 17534 transitions. Word has length 449 [2020-11-30 00:56:35,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:35,285 INFO L481 AbstractCegarLoop]: Abstraction has 16081 states and 17534 transitions. [2020-11-30 00:56:35,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:56:35,285 INFO L276 IsEmpty]: Start isEmpty. Operand 16081 states and 17534 transitions. [2020-11-30 00:56:35,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-11-30 00:56:35,309 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:35,310 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:56:35,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-11-30 00:56:35,526 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:35,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:35,527 INFO L82 PathProgramCache]: Analyzing trace with hash 786894688, now seen corresponding path program 1 times [2020-11-30 00:56:35,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:35,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145724611] [2020-11-30 00:56:35,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 154 proven. 307 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:36,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145724611] [2020-11-30 00:56:36,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190389533] [2020-11-30 00:56:36,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/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 [2020-11-30 00:56:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:36,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:56:36,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:36,873 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2020-11-30 00:56:36,873 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:56:36,883 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:56:36,906 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:56:36,936 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:56:36,948 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:56:37,601 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 154 proven. 307 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:37,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:56:37,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-11-30 00:56:37,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552097732] [2020-11-30 00:56:37,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 00:56:37,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:37,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:56:37,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:56:37,605 INFO L87 Difference]: Start difference. First operand 16081 states and 17534 transitions. Second operand 9 states. [2020-11-30 00:56:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:43,350 INFO L93 Difference]: Finished difference Result 34373 states and 37475 transitions. [2020-11-30 00:56:43,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:56:43,351 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 457 [2020-11-30 00:56:43,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:43,374 INFO L225 Difference]: With dead ends: 34373 [2020-11-30 00:56:43,374 INFO L226 Difference]: Without dead ends: 20506 [2020-11-30 00:56:43,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 453 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-11-30 00:56:43,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20506 states. [2020-11-30 00:56:43,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20506 to 17185. [2020-11-30 00:56:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17185 states. [2020-11-30 00:56:43,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17185 states to 17185 states and 18694 transitions. [2020-11-30 00:56:43,588 INFO L78 Accepts]: Start accepts. Automaton has 17185 states and 18694 transitions. Word has length 457 [2020-11-30 00:56:43,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:43,589 INFO L481 AbstractCegarLoop]: Abstraction has 17185 states and 18694 transitions. [2020-11-30 00:56:43,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 00:56:43,589 INFO L276 IsEmpty]: Start isEmpty. Operand 17185 states and 18694 transitions. [2020-11-30 00:56:43,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2020-11-30 00:56:43,609 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:43,610 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-30 00:56:43,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:56:43,825 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:43,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:43,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1135266520, now seen corresponding path program 1 times [2020-11-30 00:56:43,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:43,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817134259] [2020-11-30 00:56:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:44,294 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-11-30 00:56:44,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817134259] [2020-11-30 00:56:44,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:44,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:56:44,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262215781] [2020-11-30 00:56:44,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:44,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:44,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:44,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:44,296 INFO L87 Difference]: Start difference. First operand 17185 states and 18694 transitions. Second operand 4 states. [2020-11-30 00:56:48,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:48,329 INFO L93 Difference]: Finished difference Result 36399 states and 39680 transitions. [2020-11-30 00:56:48,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:56:48,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 508 [2020-11-30 00:56:48,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:48,347 INFO L225 Difference]: With dead ends: 36399 [2020-11-30 00:56:48,347 INFO L226 Difference]: Without dead ends: 21612 [2020-11-30 00:56:48,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:48,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21612 states. [2020-11-30 00:56:48,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21612 to 18841. [2020-11-30 00:56:48,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18841 states. [2020-11-30 00:56:48,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18841 states to 18841 states and 20547 transitions. [2020-11-30 00:56:48,668 INFO L78 Accepts]: Start accepts. Automaton has 18841 states and 20547 transitions. Word has length 508 [2020-11-30 00:56:48,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:48,669 INFO L481 AbstractCegarLoop]: Abstraction has 18841 states and 20547 transitions. [2020-11-30 00:56:48,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:48,669 INFO L276 IsEmpty]: Start isEmpty. Operand 18841 states and 20547 transitions. [2020-11-30 00:56:48,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2020-11-30 00:56:48,688 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:48,689 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2020-11-30 00:56:48,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-30 00:56:48,690 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:48,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:48,690 INFO L82 PathProgramCache]: Analyzing trace with hash 249263254, now seen corresponding path program 2 times [2020-11-30 00:56:48,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:48,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084757789] [2020-11-30 00:56:48,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:49,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 787 proven. 151 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2020-11-30 00:56:49,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084757789] [2020-11-30 00:56:49,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423748974] [2020-11-30 00:56:49,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:56:49,944 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:56:49,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:56:49,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:56:49,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:50,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 822 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-11-30 00:56:50,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:56:50,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2020-11-30 00:56:50,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221627230] [2020-11-30 00:56:50,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:50,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:50,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:50,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:56:50,283 INFO L87 Difference]: Start difference. First operand 18841 states and 20547 transitions. Second operand 4 states. [2020-11-30 00:56:51,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:51,843 INFO L93 Difference]: Finished difference Result 37493 states and 40884 transitions. [2020-11-30 00:56:51,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:56:51,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 534 [2020-11-30 00:56:51,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:51,865 INFO L225 Difference]: With dead ends: 37493 [2020-11-30 00:56:51,865 INFO L226 Difference]: Without dead ends: 21050 [2020-11-30 00:56:51,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:56:51,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21050 states. [2020-11-30 00:56:52,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21050 to 12577. [2020-11-30 00:56:52,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12577 states. [2020-11-30 00:56:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12577 states to 12577 states and 13699 transitions. [2020-11-30 00:56:52,049 INFO L78 Accepts]: Start accepts. Automaton has 12577 states and 13699 transitions. Word has length 534 [2020-11-30 00:56:52,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:52,050 INFO L481 AbstractCegarLoop]: Abstraction has 12577 states and 13699 transitions. [2020-11-30 00:56:52,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:52,050 INFO L276 IsEmpty]: Start isEmpty. Operand 12577 states and 13699 transitions. [2020-11-30 00:56:52,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2020-11-30 00:56:52,058 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:52,058 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-11-30 00:56:52,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-11-30 00:56:52,260 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:52,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:52,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1508406366, now seen corresponding path program 1 times [2020-11-30 00:56:52,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:52,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832427050] [2020-11-30 00:56:52,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:52,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 558 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2020-11-30 00:56:52,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832427050] [2020-11-30 00:56:52,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:52,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:56:52,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738941285] [2020-11-30 00:56:52,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:56:52,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:52,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:56:52,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:56:52,691 INFO L87 Difference]: Start difference. First operand 12577 states and 13699 transitions. Second operand 3 states. [2020-11-30 00:56:53,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:53,675 INFO L93 Difference]: Finished difference Result 25535 states and 27796 transitions. [2020-11-30 00:56:53,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:53,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 545 [2020-11-30 00:56:53,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:53,687 INFO L225 Difference]: With dead ends: 25535 [2020-11-30 00:56:53,687 INFO L226 Difference]: Without dead ends: 12959 [2020-11-30 00:56:53,692 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 [2020-11-30 00:56:53,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12959 states. [2020-11-30 00:56:53,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12959 to 11840. [2020-11-30 00:56:53,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11840 states. [2020-11-30 00:56:53,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11840 states to 11840 states and 12783 transitions. [2020-11-30 00:56:53,798 INFO L78 Accepts]: Start accepts. Automaton has 11840 states and 12783 transitions. Word has length 545 [2020-11-30 00:56:53,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:53,799 INFO L481 AbstractCegarLoop]: Abstraction has 11840 states and 12783 transitions. [2020-11-30 00:56:53,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:56:53,799 INFO L276 IsEmpty]: Start isEmpty. Operand 11840 states and 12783 transitions. [2020-11-30 00:56:53,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2020-11-30 00:56:53,807 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:53,807 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:53,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-30 00:56:53,808 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:53,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:53,808 INFO L82 PathProgramCache]: Analyzing trace with hash -260121432, now seen corresponding path program 1 times [2020-11-30 00:56:53,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:53,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767891666] [2020-11-30 00:56:53,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:54,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1267 backedges. 597 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2020-11-30 00:56:54,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767891666] [2020-11-30 00:56:54,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:54,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:56:54,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906524655] [2020-11-30 00:56:54,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:56:54,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:54,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:56:54,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:56:54,385 INFO L87 Difference]: Start difference. First operand 11840 states and 12783 transitions. Second operand 3 states. [2020-11-30 00:56:55,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:55,428 INFO L93 Difference]: Finished difference Result 24593 states and 26510 transitions. [2020-11-30 00:56:55,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:55,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 645 [2020-11-30 00:56:55,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:55,429 INFO L225 Difference]: With dead ends: 24593 [2020-11-30 00:56:55,429 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:56:55,436 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 [2020-11-30 00:56:55,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:56:55,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:56:55,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:56:55,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:56:55,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 645 [2020-11-30 00:56:55,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:55,438 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:56:55,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:56:55,438 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:56:55,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:56:55,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-30 00:56:55,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:56:56,332 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 519 DAG size of output: 351 [2020-11-30 00:56:56,998 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 519 DAG size of output: 351 [2020-11-30 00:56:59,290 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 328 DAG size of output: 85 [2020-11-30 00:57:01,500 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 328 DAG size of output: 85 [2020-11-30 00:57:01,517 INFO L274 CegarLoopResult]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-11-30 00:57:01,517 INFO L274 CegarLoopResult]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,517 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-11-30 00:57:01,517 INFO L274 CegarLoopResult]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,517 INFO L274 CegarLoopResult]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,517 INFO L274 CegarLoopResult]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,517 INFO L274 CegarLoopResult]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,518 INFO L274 CegarLoopResult]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,519 INFO L274 CegarLoopResult]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,519 INFO L274 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-11-30 00:57:01,519 INFO L274 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-11-30 00:57:01,519 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-11-30 00:57:01,520 INFO L274 CegarLoopResult]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,522 INFO L274 CegarLoopResult]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,522 INFO L274 CegarLoopResult]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-11-30 00:57:01,523 INFO L274 CegarLoopResult]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-11-30 00:57:01,524 INFO L274 CegarLoopResult]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,524 INFO L274 CegarLoopResult]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,524 INFO L274 CegarLoopResult]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,524 INFO L274 CegarLoopResult]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,524 INFO L274 CegarLoopResult]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,524 INFO L274 CegarLoopResult]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,524 INFO L274 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-11-30 00:57:01,524 INFO L274 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-11-30 00:57:01,524 INFO L274 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-11-30 00:57:01,524 INFO L274 CegarLoopResult]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,524 INFO L274 CegarLoopResult]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,524 INFO L274 CegarLoopResult]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,525 INFO L270 CegarLoopResult]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse12 (<= ~a29~0 220)) (.cse9 (<= ~a29~0 277)) (.cse7 (= ~a25~0 13)) (.cse16 (<= 312 ~a23~0)) (.cse15 (<= ~a29~0 140)) (.cse4 (= ~a25~0 11)) (.cse11 (= ~a25~0 12)) (.cse2 (<= ~a23~0 262)) (.cse10 (< 306 ~a23~0)) (.cse13 (= ~a25~0 10)) (.cse14 (= ~a25~0 9)) (.cse6 (= ~a4~0 0)) (.cse8 (<= (+ ~a23~0 43) 0)) (.cse0 (<= ~a29~0 275)) (.cse1 (<= ~a25~0 10)) (.cse5 (< 245 ~a29~0)) (.cse3 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse6 .cse2) (and .cse7 (<= ~a29~0 206675) .cse3) (and .cse4 (<= (+ ~a29~0 275802) 0) .cse8) (and .cse1 .cse9 .cse10 .cse5 .cse3) (and .cse10 .cse11 .cse12 .cse3) (and .cse6 .cse13 .cse8) (and .cse7 .cse2 .cse3) (and .cse11 .cse2 .cse3) (and .cse14 .cse6 .cse15 .cse2) (and .cse4 .cse6 .cse8) (and .cse0 .cse13 .cse3) (and .cse14 .cse3) (and .cse1 .cse8 .cse3) (and (<= (+ ~a29~0 193244) 0) .cse16 .cse1 .cse3) (and .cse11 .cse8 .cse12) (and .cse9 .cse5 .cse11 .cse3) (and (<= ~a29~0 206678) .cse10 .cse7 .cse3) (and .cse6 .cse7 .cse2) (and .cse0 .cse16 .cse11 .cse3) (and .cse14 (<= (+ ~a29~0 275824) 0) .cse8) (and .cse6 .cse13 .cse15) (and .cse4 .cse3) (and .cse0 .cse6 .cse11) (and .cse6 .cse11 .cse2) (and .cse10 .cse13 .cse3) (and .cse14 .cse6 .cse8) (and .cse0 .cse1 .cse5 .cse3))) [2020-11-30 00:57:01,525 INFO L274 CegarLoopResult]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,525 INFO L274 CegarLoopResult]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-11-30 00:57:01,525 INFO L274 CegarLoopResult]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-11-30 00:57:01,525 INFO L274 CegarLoopResult]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,525 INFO L274 CegarLoopResult]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,525 INFO L274 CegarLoopResult]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,526 INFO L274 CegarLoopResult]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,526 INFO L274 CegarLoopResult]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,526 INFO L274 CegarLoopResult]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,526 INFO L274 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-11-30 00:57:01,526 INFO L274 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-11-30 00:57:01,526 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-11-30 00:57:01,527 INFO L277 CegarLoopResult]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-11-30 00:57:01,527 INFO L274 CegarLoopResult]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,527 INFO L274 CegarLoopResult]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,527 INFO L274 CegarLoopResult]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,527 INFO L274 CegarLoopResult]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,527 INFO L274 CegarLoopResult]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,527 INFO L274 CegarLoopResult]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,528 INFO L274 CegarLoopResult]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,528 INFO L274 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-11-30 00:57:01,528 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-11-30 00:57:01,528 INFO L274 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-11-30 00:57:01,528 INFO L274 CegarLoopResult]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,528 INFO L274 CegarLoopResult]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,528 INFO L274 CegarLoopResult]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,529 INFO L274 CegarLoopResult]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,529 INFO L274 CegarLoopResult]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,529 INFO L274 CegarLoopResult]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,529 INFO L274 CegarLoopResult]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,529 INFO L274 CegarLoopResult]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,529 INFO L274 CegarLoopResult]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,529 INFO L274 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-11-30 00:57:01,529 INFO L274 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-11-30 00:57:01,530 INFO L274 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-11-30 00:57:01,530 INFO L274 CegarLoopResult]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,531 INFO L270 CegarLoopResult]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse12 (<= ~a29~0 220)) (.cse9 (<= ~a29~0 277)) (.cse7 (= ~a25~0 13)) (.cse16 (<= 312 ~a23~0)) (.cse15 (<= ~a29~0 140)) (.cse4 (= ~a25~0 11)) (.cse11 (= ~a25~0 12)) (.cse2 (<= ~a23~0 262)) (.cse10 (< 306 ~a23~0)) (.cse13 (= ~a25~0 10)) (.cse14 (= ~a25~0 9)) (.cse6 (= ~a4~0 0)) (.cse8 (<= (+ ~a23~0 43) 0)) (.cse0 (<= ~a29~0 275)) (.cse1 (<= ~a25~0 10)) (.cse5 (< 245 ~a29~0)) (.cse3 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse6 .cse2) (and .cse7 (<= ~a29~0 206675) .cse3) (and .cse4 (<= (+ ~a29~0 275802) 0) .cse8) (and .cse1 .cse9 .cse10 .cse5 .cse3) (and .cse10 .cse11 .cse12 .cse3) (and .cse6 .cse13 .cse8) (and .cse7 .cse2 .cse3) (and .cse11 .cse2 .cse3) (and .cse14 .cse6 .cse15 .cse2) (and .cse4 .cse6 .cse8) (and .cse0 .cse13 .cse3) (and .cse14 .cse3) (and .cse1 .cse8 .cse3) (and (<= (+ ~a29~0 193244) 0) .cse16 .cse1 .cse3) (and .cse11 .cse8 .cse12) (and .cse9 .cse5 .cse11 .cse3) (and (<= ~a29~0 206678) .cse10 .cse7 .cse3) (and .cse6 .cse7 .cse2) (and .cse0 .cse16 .cse11 .cse3) (and .cse14 (<= (+ ~a29~0 275824) 0) .cse8) (and .cse6 .cse13 .cse15) (and .cse4 .cse3) (and .cse0 .cse6 .cse11) (and .cse6 .cse11 .cse2) (and .cse10 .cse13 .cse3) (and .cse14 .cse6 .cse8) (and .cse0 .cse1 .cse5 .cse3))) [2020-11-30 00:57:01,531 INFO L274 CegarLoopResult]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,531 INFO L274 CegarLoopResult]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,531 INFO L274 CegarLoopResult]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,531 INFO L274 CegarLoopResult]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,531 INFO L274 CegarLoopResult]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,531 INFO L274 CegarLoopResult]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,532 INFO L274 CegarLoopResult]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,532 INFO L274 CegarLoopResult]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,532 INFO L274 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-11-30 00:57:01,532 INFO L274 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-11-30 00:57:01,532 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-11-30 00:57:01,532 INFO L274 CegarLoopResult]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-11-30 00:57:01,532 INFO L274 CegarLoopResult]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-11-30 00:57:01,533 INFO L274 CegarLoopResult]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-11-30 00:57:01,533 INFO L274 CegarLoopResult]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-11-30 00:57:01,533 INFO L274 CegarLoopResult]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,533 INFO L274 CegarLoopResult]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,533 INFO L274 CegarLoopResult]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,533 INFO L274 CegarLoopResult]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,533 INFO L274 CegarLoopResult]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,534 INFO L274 CegarLoopResult]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,534 INFO L274 CegarLoopResult]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,534 INFO L274 CegarLoopResult]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,534 INFO L274 CegarLoopResult]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,534 INFO L274 CegarLoopResult]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,534 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:57:01,534 INFO L274 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-11-30 00:57:01,534 INFO L274 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-11-30 00:57:01,535 INFO L274 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-11-30 00:57:01,535 INFO L274 CegarLoopResult]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-11-30 00:57:01,535 INFO L274 CegarLoopResult]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,535 INFO L274 CegarLoopResult]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,535 INFO L274 CegarLoopResult]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,535 INFO L274 CegarLoopResult]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,535 INFO L274 CegarLoopResult]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,536 INFO L274 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-11-30 00:57:01,537 INFO L274 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-11-30 00:57:01,537 INFO L274 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-11-30 00:57:01,537 INFO L274 CegarLoopResult]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,537 INFO L274 CegarLoopResult]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,538 INFO L274 CegarLoopResult]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,538 INFO L274 CegarLoopResult]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,538 INFO L274 CegarLoopResult]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-11-30 00:57:01,538 INFO L274 CegarLoopResult]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-11-30 00:57:01,538 INFO L274 CegarLoopResult]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,538 INFO L274 CegarLoopResult]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,538 INFO L274 CegarLoopResult]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,539 INFO L274 CegarLoopResult]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,539 INFO L274 CegarLoopResult]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,539 INFO L274 CegarLoopResult]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,539 INFO L274 CegarLoopResult]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-11-30 00:57:01,539 INFO L274 CegarLoopResult]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-11-30 00:57:01,539 INFO L274 CegarLoopResult]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,539 INFO L274 CegarLoopResult]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,539 INFO L274 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-11-30 00:57:01,540 INFO L274 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-11-30 00:57:01,540 INFO L274 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-11-30 00:57:01,540 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:57:01,540 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:57:01,540 INFO L274 CegarLoopResult]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,540 INFO L274 CegarLoopResult]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,540 INFO L274 CegarLoopResult]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,541 INFO L274 CegarLoopResult]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,541 INFO L274 CegarLoopResult]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,541 INFO L274 CegarLoopResult]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,541 INFO L274 CegarLoopResult]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,541 INFO L274 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-11-30 00:57:01,541 INFO L274 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-11-30 00:57:01,541 INFO L274 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-11-30 00:57:01,541 INFO L274 CegarLoopResult]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-11-30 00:57:01,542 INFO L274 CegarLoopResult]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-11-30 00:57:01,542 INFO L274 CegarLoopResult]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-11-30 00:57:01,542 INFO L274 CegarLoopResult]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-11-30 00:57:01,542 INFO L274 CegarLoopResult]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,542 INFO L274 CegarLoopResult]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,542 INFO L274 CegarLoopResult]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-11-30 00:57:01,542 INFO L274 CegarLoopResult]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-11-30 00:57:01,542 INFO L274 CegarLoopResult]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,543 INFO L274 CegarLoopResult]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,543 INFO L274 CegarLoopResult]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,543 INFO L274 CegarLoopResult]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,544 INFO L274 CegarLoopResult]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,544 INFO L274 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-11-30 00:57:01,544 INFO L274 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-11-30 00:57:01,545 INFO L274 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-11-30 00:57:01,545 INFO L274 CegarLoopResult]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,545 INFO L274 CegarLoopResult]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,545 INFO L274 CegarLoopResult]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,545 INFO L274 CegarLoopResult]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,545 INFO L274 CegarLoopResult]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,545 INFO L274 CegarLoopResult]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,545 INFO L274 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-11-30 00:57:01,546 INFO L274 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-11-30 00:57:01,546 INFO L274 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-11-30 00:57:01,546 INFO L274 CegarLoopResult]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,546 INFO L274 CegarLoopResult]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,546 INFO L274 CegarLoopResult]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,546 INFO L274 CegarLoopResult]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,546 INFO L274 CegarLoopResult]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,546 INFO L274 CegarLoopResult]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,547 INFO L274 CegarLoopResult]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,547 INFO L274 CegarLoopResult]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,547 INFO L274 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-11-30 00:57:01,547 INFO L274 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-11-30 00:57:01,547 INFO L274 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-11-30 00:57:01,547 INFO L274 CegarLoopResult]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,547 INFO L274 CegarLoopResult]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,547 INFO L274 CegarLoopResult]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,548 INFO L274 CegarLoopResult]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,548 INFO L274 CegarLoopResult]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,548 INFO L274 CegarLoopResult]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,548 INFO L274 CegarLoopResult]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,548 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:57:01,548 INFO L274 CegarLoopResult]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,548 INFO L274 CegarLoopResult]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,548 INFO L274 CegarLoopResult]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,549 INFO L274 CegarLoopResult]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,549 INFO L274 CegarLoopResult]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-11-30 00:57:01,549 INFO L274 CegarLoopResult]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-11-30 00:57:01,549 INFO L274 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-11-30 00:57:01,549 INFO L274 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-11-30 00:57:01,549 INFO L274 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-11-30 00:57:01,549 INFO L274 CegarLoopResult]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,549 INFO L274 CegarLoopResult]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,549 INFO L274 CegarLoopResult]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,550 INFO L274 CegarLoopResult]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,550 INFO L274 CegarLoopResult]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,550 INFO L274 CegarLoopResult]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,550 INFO L274 CegarLoopResult]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,550 INFO L274 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-11-30 00:57:01,550 INFO L274 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-11-30 00:57:01,550 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-30 00:57:01,550 INFO L274 CegarLoopResult]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,551 INFO L274 CegarLoopResult]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,551 INFO L274 CegarLoopResult]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,551 INFO L274 CegarLoopResult]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-11-30 00:57:01,551 INFO L274 CegarLoopResult]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-11-30 00:57:01,551 INFO L274 CegarLoopResult]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,551 INFO L274 CegarLoopResult]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,551 INFO L274 CegarLoopResult]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,551 INFO L274 CegarLoopResult]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,552 INFO L274 CegarLoopResult]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,552 INFO L274 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-11-30 00:57:01,552 INFO L274 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-11-30 00:57:01,552 INFO L274 CegarLoopResult]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,552 INFO L274 CegarLoopResult]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,552 INFO L274 CegarLoopResult]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-11-30 00:57:01,552 INFO L274 CegarLoopResult]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-11-30 00:57:01,552 INFO L274 CegarLoopResult]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:57:01,553 INFO L274 CegarLoopResult]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,553 INFO L274 CegarLoopResult]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,553 INFO L274 CegarLoopResult]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,553 INFO L274 CegarLoopResult]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,553 INFO L274 CegarLoopResult]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,553 INFO L274 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-11-30 00:57:01,553 INFO L274 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-11-30 00:57:01,554 INFO L274 CegarLoopResult]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-11-30 00:57:01,554 INFO L274 CegarLoopResult]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-11-30 00:57:01,554 INFO L274 CegarLoopResult]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,554 INFO L274 CegarLoopResult]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,554 INFO L274 CegarLoopResult]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,554 INFO L274 CegarLoopResult]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,554 INFO L274 CegarLoopResult]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,554 INFO L274 CegarLoopResult]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,555 INFO L274 CegarLoopResult]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,555 INFO L274 CegarLoopResult]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,555 INFO L274 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-11-30 00:57:01,556 INFO L274 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-11-30 00:57:01,556 INFO L274 CegarLoopResult]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-11-30 00:57:01,556 INFO L274 CegarLoopResult]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-11-30 00:57:01,556 INFO L274 CegarLoopResult]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-11-30 00:57:01,556 INFO L274 CegarLoopResult]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-11-30 00:57:01,556 INFO L274 CegarLoopResult]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,556 INFO L274 CegarLoopResult]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,557 INFO L274 CegarLoopResult]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,557 INFO L274 CegarLoopResult]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,560 INFO L274 CegarLoopResult]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,560 INFO L274 CegarLoopResult]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,560 INFO L274 CegarLoopResult]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,560 INFO L274 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-11-30 00:57:01,560 INFO L274 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-11-30 00:57:01,560 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:57:01,561 INFO L274 CegarLoopResult]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,561 INFO L274 CegarLoopResult]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,561 INFO L274 CegarLoopResult]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,562 INFO L274 CegarLoopResult]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,562 INFO L274 CegarLoopResult]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,562 INFO L274 CegarLoopResult]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,562 INFO L274 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-11-30 00:57:01,562 INFO L274 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-11-30 00:57:01,562 INFO L274 CegarLoopResult]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,562 INFO L274 CegarLoopResult]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,562 INFO L274 CegarLoopResult]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,563 INFO L274 CegarLoopResult]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,563 INFO L274 CegarLoopResult]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,563 INFO L274 CegarLoopResult]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,563 INFO L274 CegarLoopResult]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,563 INFO L274 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-11-30 00:57:01,563 INFO L274 CegarLoopResult]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:57:01,563 INFO L274 CegarLoopResult]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,563 INFO L274 CegarLoopResult]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,564 INFO L274 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-11-30 00:57:01,564 INFO L274 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-11-30 00:57:01,564 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-11-30 00:57:01,564 INFO L274 CegarLoopResult]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-11-30 00:57:01,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:57:01 BoogieIcfgContainer [2020-11-30 00:57:01,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:57:01,604 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:57:01,604 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:57:01,604 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:57:01,605 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:47" (3/4) ... [2020-11-30 00:57:01,607 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:57:01,645 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:57:01,651 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:57:01,653 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:57:01,655 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:57:01,841 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6348fd8b-6b63-49dd-b99a-cf445a7dfc84/bin/uautomizer/witness.graphml [2020-11-30 00:57:01,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:57:01,842 INFO L168 Benchmark]: Toolchain (without parser) took 78974.86 ms. Allocated memory was 94.4 MB in the beginning and 2.0 GB in the end (delta: 1.9 GB). Free memory was 64.1 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 778.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:01,842 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory is still 54.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:57:01,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1090.05 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 63.8 MB in the beginning and 96.6 MB in the end (delta: -32.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:01,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 198.93 ms. Allocated memory is still 130.0 MB. Free memory was 96.6 MB in the beginning and 79.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:01,844 INFO L168 Benchmark]: Boogie Preprocessor took 169.81 ms. Allocated memory is still 130.0 MB. Free memory was 79.9 MB in the beginning and 68.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:01,844 INFO L168 Benchmark]: RCFGBuilder took 3081.20 ms. Allocated memory was 130.0 MB in the beginning and 190.8 MB in the end (delta: 60.8 MB). Free memory was 68.0 MB in the beginning and 93.2 MB in the end (delta: -25.1 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:01,844 INFO L168 Benchmark]: TraceAbstraction took 74189.21 ms. Allocated memory was 190.8 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 92.1 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.1 GB. [2020-11-30 00:57:01,845 INFO L168 Benchmark]: Witness Printer took 237.16 ms. Allocated memory is still 2.0 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:01,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory is still 54.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1090.05 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 63.8 MB in the beginning and 96.6 MB in the end (delta: -32.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 198.93 ms. Allocated memory is still 130.0 MB. Free memory was 96.6 MB in the beginning and 79.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 169.81 ms. Allocated memory is still 130.0 MB. Free memory was 79.9 MB in the beginning and 68.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3081.20 ms. Allocated memory was 130.0 MB in the beginning and 190.8 MB in the end (delta: 60.8 MB). Free memory was 68.0 MB in the beginning and 93.2 MB in the end (delta: -25.1 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 74189.21 ms. Allocated memory was 190.8 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 92.1 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.1 GB. * Witness Printer took 237.16 ms. Allocated memory is still 2.0 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 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: 1038]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((a29 <= 275 && a25 <= 10) && a23 <= 262) && a4 == 1) || ((((a29 <= 275 && a25 == 11) && 245 < a29) && a4 == 0) && a23 <= 262)) || ((a25 == 13 && a29 <= 206675) && a4 == 1)) || ((a25 == 11 && a29 + 275802 <= 0) && a23 + 43 <= 0)) || ((((a25 <= 10 && a29 <= 277) && 306 < a23) && 245 < a29) && a4 == 1)) || (((306 < a23 && a25 == 12) && a29 <= 220) && a4 == 1)) || ((a4 == 0 && a25 == 10) && a23 + 43 <= 0)) || ((a25 == 13 && a23 <= 262) && a4 == 1)) || ((a25 == 12 && a23 <= 262) && a4 == 1)) || (((a25 == 9 && a4 == 0) && a29 <= 140) && a23 <= 262)) || ((a25 == 11 && a4 == 0) && a23 + 43 <= 0)) || ((a29 <= 275 && a25 == 10) && a4 == 1)) || (a25 == 9 && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || (((a29 + 193244 <= 0 && 312 <= a23) && a25 <= 10) && a4 == 1)) || ((a25 == 12 && a23 + 43 <= 0) && a29 <= 220)) || (((a29 <= 277 && 245 < a29) && a25 == 12) && a4 == 1)) || (((a29 <= 206678 && 306 < a23) && a25 == 13) && a4 == 1)) || ((a4 == 0 && a25 == 13) && a23 <= 262)) || (((a29 <= 275 && 312 <= a23) && a25 == 12) && a4 == 1)) || ((a25 == 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || ((a4 == 0 && a25 == 10) && a29 <= 140)) || (a25 == 11 && a4 == 1)) || ((a29 <= 275 && a4 == 0) && a25 == 12)) || ((a4 == 0 && a25 == 12) && a23 <= 262)) || ((306 < a23 && a25 == 10) && a4 == 1)) || ((a25 == 9 && a4 == 0) && a23 + 43 <= 0)) || (((a29 <= 275 && a25 <= 10) && 245 < a29) && a4 == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((a29 <= 275 && a25 <= 10) && a23 <= 262) && a4 == 1) || ((((a29 <= 275 && a25 == 11) && 245 < a29) && a4 == 0) && a23 <= 262)) || ((a25 == 13 && a29 <= 206675) && a4 == 1)) || ((a25 == 11 && a29 + 275802 <= 0) && a23 + 43 <= 0)) || ((((a25 <= 10 && a29 <= 277) && 306 < a23) && 245 < a29) && a4 == 1)) || (((306 < a23 && a25 == 12) && a29 <= 220) && a4 == 1)) || ((a4 == 0 && a25 == 10) && a23 + 43 <= 0)) || ((a25 == 13 && a23 <= 262) && a4 == 1)) || ((a25 == 12 && a23 <= 262) && a4 == 1)) || (((a25 == 9 && a4 == 0) && a29 <= 140) && a23 <= 262)) || ((a25 == 11 && a4 == 0) && a23 + 43 <= 0)) || ((a29 <= 275 && a25 == 10) && a4 == 1)) || (a25 == 9 && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || (((a29 + 193244 <= 0 && 312 <= a23) && a25 <= 10) && a4 == 1)) || ((a25 == 12 && a23 + 43 <= 0) && a29 <= 220)) || (((a29 <= 277 && 245 < a29) && a25 == 12) && a4 == 1)) || (((a29 <= 206678 && 306 < a23) && a25 == 13) && a4 == 1)) || ((a4 == 0 && a25 == 13) && a23 <= 262)) || (((a29 <= 275 && 312 <= a23) && a25 == 12) && a4 == 1)) || ((a25 == 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || ((a4 == 0 && a25 == 10) && a29 <= 140)) || (a25 == 11 && a4 == 1)) || ((a29 <= 275 && a4 == 0) && a25 == 12)) || ((a4 == 0 && a25 == 12) && a23 <= 262)) || ((306 < a23 && a25 == 10) && a4 == 1)) || ((a25 == 9 && a4 == 0) && a23 + 43 <= 0)) || (((a29 <= 275 && a25 <= 10) && 245 < a29) && a4 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 67.9s, OverallIterations: 23, TraceHistogramMax: 6, AutomataDifference: 49.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4334 SDtfs, 4983 SDslu, 782 SDs, 0 SdLazy, 20959 SolverSat, 2374 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 35.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2111 GetRequests, 2052 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18841occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.0s AutomataMinimizationTime, 23 MinimizatonAttempts, 34787 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 171 NumberOfFragments, 663 HoareAnnotationTreeSize, 3 FomulaSimplifications, 110674 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 53948 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 9378 NumberOfCodeBlocks, 9378 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 9350 ConstructedInterpolants, 0 QuantifiedInterpolants, 14964642 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2844 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 28 InterpolantComputations, 22 PerfectInterpolantSequences, 10395/11660 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...