./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label53.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_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label53.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/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 118bd5ad7c98f835d1156af44127e433408f620e ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:02:26,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:02:26,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:02:26,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:02:26,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:02:26,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:02:26,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:02:26,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:02:26,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:02:26,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:02:26,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:02:26,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:02:26,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:02:26,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:02:26,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:02:26,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:02:26,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:02:26,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:02:26,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:02:26,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:02:26,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:02:26,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:02:26,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:02:26,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:02:26,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:02:26,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:02:26,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:02:26,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:02:26,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:02:26,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:02:26,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:02:26,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:02:26,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:02:26,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:02:26,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:02:26,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:02:26,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:02:26,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:02:26,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:02:26,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:02:26,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:02:26,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:02:26,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:02:26,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:02:26,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:02:26,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:02:26,563 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:02:26,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:02:26,564 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:02:26,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:02:26,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:02:26,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:02:26,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:02:26,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:02:26,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:02:26,565 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:02:26,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:02:26,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:02:26,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:02:26,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:02:26,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:02:26,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:02:26,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:02:26,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:02:26,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:02:26,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:02:26,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:02:26,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:02:26,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:02:26,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:02:26,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:02:26,569 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_8d16075c-8949-453e-bd70-cdd21c7f5ac9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 118bd5ad7c98f835d1156af44127e433408f620e [2020-11-30 01:02:26,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:02:26,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:02:26,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:02:26,862 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:02:26,864 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:02:26,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem02_label53.c [2020-11-30 01:02:26,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/data/2d4af64c4/0a75ad2786164a0a873fbe618c54c53b/FLAG8f88b865d [2020-11-30 01:02:27,487 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:02:27,488 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/sv-benchmarks/c/eca-rers2012/Problem02_label53.c [2020-11-30 01:02:27,503 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/data/2d4af64c4/0a75ad2786164a0a873fbe618c54c53b/FLAG8f88b865d [2020-11-30 01:02:27,784 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/data/2d4af64c4/0a75ad2786164a0a873fbe618c54c53b [2020-11-30 01:02:27,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:02:27,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:02:27,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:27,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:02:27,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:02:27,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:27" (1/1) ... [2020-11-30 01:02:27,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a08e1dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27, skipping insertion in model container [2020-11-30 01:02:27,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:27" (1/1) ... [2020-11-30 01:02:27,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:02:27,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:28,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:28,361 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:02:28,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:28,512 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:02:28,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:28 WrapperNode [2020-11-30 01:02:28,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:28,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:28,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:02:28,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:02:28,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:28" (1/1) ... [2020-11-30 01:02:28,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:28" (1/1) ... [2020-11-30 01:02:28,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:28,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:02:28,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:02:28,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:02:28,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:28" (1/1) ... [2020-11-30 01:02:28,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:28" (1/1) ... [2020-11-30 01:02:28,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:28" (1/1) ... [2020-11-30 01:02:28,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:28" (1/1) ... [2020-11-30 01:02:28,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:28" (1/1) ... [2020-11-30 01:02:28,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:28" (1/1) ... [2020-11-30 01:02:28,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:28" (1/1) ... [2020-11-30 01:02:28,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:02:28,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:02:28,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:02:28,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:02:28,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/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 01:02:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:02:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:02:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:02:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:02:30,300 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:02:30,302 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 01:02:30,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:30 BoogieIcfgContainer [2020-11-30 01:02:30,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:02:30,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:02:30,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:02:30,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:02:30,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:02:27" (1/3) ... [2020-11-30 01:02:30,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f28206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:30, skipping insertion in model container [2020-11-30 01:02:30,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:28" (2/3) ... [2020-11-30 01:02:30,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f28206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:30, skipping insertion in model container [2020-11-30 01:02:30,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:30" (3/3) ... [2020-11-30 01:02:30,319 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label53.c [2020-11-30 01:02:30,333 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:02:30,338 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:02:30,350 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:02:30,391 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:02:30,391 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:02:30,392 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:02:30,392 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:02:30,392 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:02:30,392 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:02:30,392 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:02:30,392 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:02:30,416 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-11-30 01:02:30,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-11-30 01:02:30,437 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:30,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:30,439 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:30,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:30,447 INFO L82 PathProgramCache]: Analyzing trace with hash 96826285, now seen corresponding path program 1 times [2020-11-30 01:02:30,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:30,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660078302] [2020-11-30 01:02:30,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:30,961 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 01:02:30,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660078302] [2020-11-30 01:02:30,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:30,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:02:30,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984783494] [2020-11-30 01:02:30,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:02:30,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:30,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:30,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:02:30,984 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-11-30 01:02:31,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:31,917 INFO L93 Difference]: Finished difference Result 640 states and 1083 transitions. [2020-11-30 01:02:31,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:31,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-11-30 01:02:31,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:31,949 INFO L225 Difference]: With dead ends: 640 [2020-11-30 01:02:31,953 INFO L226 Difference]: Without dead ends: 318 [2020-11-30 01:02:31,957 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 01:02:31,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-11-30 01:02:32,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2020-11-30 01:02:32,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-11-30 01:02:32,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2020-11-30 01:02:32,040 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 138 [2020-11-30 01:02:32,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:32,041 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2020-11-30 01:02:32,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:02:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2020-11-30 01:02:32,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-11-30 01:02:32,046 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:32,046 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:32,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:02:32,047 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:32,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:32,053 INFO L82 PathProgramCache]: Analyzing trace with hash -247705766, now seen corresponding path program 1 times [2020-11-30 01:02:32,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:32,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220009233] [2020-11-30 01:02:32,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:32,205 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:32,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220009233] [2020-11-30 01:02:32,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:32,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:02:32,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188789628] [2020-11-30 01:02:32,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:02:32,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:32,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:32,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:02:32,212 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand 3 states. [2020-11-30 01:02:32,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:32,999 INFO L93 Difference]: Finished difference Result 910 states and 1341 transitions. [2020-11-30 01:02:33,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:33,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-11-30 01:02:33,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:33,004 INFO L225 Difference]: With dead ends: 910 [2020-11-30 01:02:33,004 INFO L226 Difference]: Without dead ends: 599 [2020-11-30 01:02:33,006 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 01:02:33,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-11-30 01:02:33,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 596. [2020-11-30 01:02:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-11-30 01:02:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 772 transitions. [2020-11-30 01:02:33,043 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 772 transitions. Word has length 142 [2020-11-30 01:02:33,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:33,043 INFO L481 AbstractCegarLoop]: Abstraction has 596 states and 772 transitions. [2020-11-30 01:02:33,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:02:33,043 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 772 transitions. [2020-11-30 01:02:33,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-11-30 01:02:33,055 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:33,055 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:33,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:02:33,056 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:33,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:33,057 INFO L82 PathProgramCache]: Analyzing trace with hash -683348953, now seen corresponding path program 1 times [2020-11-30 01:02:33,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:33,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427255263] [2020-11-30 01:02:33,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:33,180 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:33,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427255263] [2020-11-30 01:02:33,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666322673] [2020-11-30 01:02:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/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 01:02:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:33,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:02:33,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:33,451 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 01:02:33,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:02:33,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-30 01:02:33,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951470860] [2020-11-30 01:02:33,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:02:33,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:33,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:33,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:33,468 INFO L87 Difference]: Start difference. First operand 596 states and 772 transitions. Second operand 3 states. [2020-11-30 01:02:34,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:34,302 INFO L93 Difference]: Finished difference Result 1613 states and 2116 transitions. [2020-11-30 01:02:34,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:34,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-11-30 01:02:34,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:34,315 INFO L225 Difference]: With dead ends: 1613 [2020-11-30 01:02:34,320 INFO L226 Difference]: Without dead ends: 1019 [2020-11-30 01:02:34,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:34,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2020-11-30 01:02:34,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1019. [2020-11-30 01:02:34,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2020-11-30 01:02:34,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1289 transitions. [2020-11-30 01:02:34,374 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1289 transitions. Word has length 147 [2020-11-30 01:02:34,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:34,377 INFO L481 AbstractCegarLoop]: Abstraction has 1019 states and 1289 transitions. [2020-11-30 01:02:34,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:02:34,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1289 transitions. [2020-11-30 01:02:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-11-30 01:02:34,385 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:34,386 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:34,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-30 01:02:34,612 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:34,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:34,613 INFO L82 PathProgramCache]: Analyzing trace with hash -43273797, now seen corresponding path program 1 times [2020-11-30 01:02:34,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:34,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700349988] [2020-11-30 01:02:34,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:34,729 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-30 01:02:34,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700349988] [2020-11-30 01:02:34,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455786671] [2020-11-30 01:02:34,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/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 01:02:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:34,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:02:34,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:35,003 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 01:02:35,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:02:35,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-30 01:02:35,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240424707] [2020-11-30 01:02:35,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:02:35,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:35,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:35,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:35,008 INFO L87 Difference]: Start difference. First operand 1019 states and 1289 transitions. Second operand 3 states. [2020-11-30 01:02:35,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:35,739 INFO L93 Difference]: Finished difference Result 2597 states and 3363 transitions. [2020-11-30 01:02:35,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:35,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-11-30 01:02:35,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:35,751 INFO L225 Difference]: With dead ends: 2597 [2020-11-30 01:02:35,752 INFO L226 Difference]: Without dead ends: 1580 [2020-11-30 01:02:35,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:35,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2020-11-30 01:02:35,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1579. [2020-11-30 01:02:35,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1579 states. [2020-11-30 01:02:35,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2009 transitions. [2020-11-30 01:02:35,811 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2009 transitions. Word has length 171 [2020-11-30 01:02:35,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:35,811 INFO L481 AbstractCegarLoop]: Abstraction has 1579 states and 2009 transitions. [2020-11-30 01:02:35,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:02:35,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2009 transitions. [2020-11-30 01:02:35,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-11-30 01:02:35,816 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:35,817 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:36,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:02:36,030 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:36,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:36,030 INFO L82 PathProgramCache]: Analyzing trace with hash 341661572, now seen corresponding path program 1 times [2020-11-30 01:02:36,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:36,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74255963] [2020-11-30 01:02:36,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:36,215 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:36,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74255963] [2020-11-30 01:02:36,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868070206] [2020-11-30 01:02:36,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/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 01:02:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:36,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:02:36,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:36,418 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-30 01:02:36,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:02:36,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 01:02:36,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364964539] [2020-11-30 01:02:36,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:02:36,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:36,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:36,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:36,421 INFO L87 Difference]: Start difference. First operand 1579 states and 2009 transitions. Second operand 3 states. [2020-11-30 01:02:37,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:37,147 INFO L93 Difference]: Finished difference Result 3580 states and 4572 transitions. [2020-11-30 01:02:37,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:37,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-11-30 01:02:37,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:37,162 INFO L225 Difference]: With dead ends: 3580 [2020-11-30 01:02:37,162 INFO L226 Difference]: Without dead ends: 2003 [2020-11-30 01:02:37,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:37,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2020-11-30 01:02:37,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1719. [2020-11-30 01:02:37,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1719 states. [2020-11-30 01:02:37,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2164 transitions. [2020-11-30 01:02:37,215 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2164 transitions. Word has length 171 [2020-11-30 01:02:37,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:37,216 INFO L481 AbstractCegarLoop]: Abstraction has 1719 states and 2164 transitions. [2020-11-30 01:02:37,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:02:37,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2164 transitions. [2020-11-30 01:02:37,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-11-30 01:02:37,223 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:37,224 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:37,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:02:37,450 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:37,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:37,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1481073270, now seen corresponding path program 1 times [2020-11-30 01:02:37,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:37,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560167157] [2020-11-30 01:02:37,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:37,586 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:37,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560167157] [2020-11-30 01:02:37,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:37,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:02:37,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818982370] [2020-11-30 01:02:37,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:02:37,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:37,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:02:37,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:37,590 INFO L87 Difference]: Start difference. First operand 1719 states and 2164 transitions. Second operand 5 states. [2020-11-30 01:02:38,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:38,944 INFO L93 Difference]: Finished difference Result 4470 states and 5615 transitions. [2020-11-30 01:02:38,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:02:38,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2020-11-30 01:02:38,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:38,959 INFO L225 Difference]: With dead ends: 4470 [2020-11-30 01:02:38,959 INFO L226 Difference]: Without dead ends: 2467 [2020-11-30 01:02:38,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:02:38,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2467 states. [2020-11-30 01:02:39,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2467 to 2419. [2020-11-30 01:02:39,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2419 states. [2020-11-30 01:02:39,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 2867 transitions. [2020-11-30 01:02:39,021 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 2867 transitions. Word has length 172 [2020-11-30 01:02:39,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:39,022 INFO L481 AbstractCegarLoop]: Abstraction has 2419 states and 2867 transitions. [2020-11-30 01:02:39,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:02:39,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 2867 transitions. [2020-11-30 01:02:39,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-11-30 01:02:39,029 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:39,029 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:39,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:02:39,030 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:39,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:39,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1908325648, now seen corresponding path program 1 times [2020-11-30 01:02:39,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:39,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342270120] [2020-11-30 01:02:39,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:39,186 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 40 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:39,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342270120] [2020-11-30 01:02:39,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529639101] [2020-11-30 01:02:39,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/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 01:02:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:39,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:02:39,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:39,366 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-11-30 01:02:39,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:02:39,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-11-30 01:02:39,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305871744] [2020-11-30 01:02:39,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:02:39,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:39,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:39,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:39,370 INFO L87 Difference]: Start difference. First operand 2419 states and 2867 transitions. Second operand 3 states. [2020-11-30 01:02:40,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:40,071 INFO L93 Difference]: Finished difference Result 6812 states and 8109 transitions. [2020-11-30 01:02:40,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:40,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-11-30 01:02:40,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:40,094 INFO L225 Difference]: With dead ends: 6812 [2020-11-30 01:02:40,095 INFO L226 Difference]: Without dead ends: 4395 [2020-11-30 01:02:40,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:40,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2020-11-30 01:02:40,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 3975. [2020-11-30 01:02:40,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3975 states. [2020-11-30 01:02:40,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 4652 transitions. [2020-11-30 01:02:40,218 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 4652 transitions. Word has length 179 [2020-11-30 01:02:40,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:40,218 INFO L481 AbstractCegarLoop]: Abstraction has 3975 states and 4652 transitions. [2020-11-30 01:02:40,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:02:40,218 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 4652 transitions. [2020-11-30 01:02:40,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-30 01:02:40,228 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:40,228 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:40,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:02:40,454 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:40,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:40,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1521495779, now seen corresponding path program 1 times [2020-11-30 01:02:40,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:40,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801923028] [2020-11-30 01:02:40,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:40,530 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-11-30 01:02:40,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801923028] [2020-11-30 01:02:40,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:40,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:02:40,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249477343] [2020-11-30 01:02:40,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:02:40,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:40,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:40,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:02:40,534 INFO L87 Difference]: Start difference. First operand 3975 states and 4652 transitions. Second operand 3 states. [2020-11-30 01:02:41,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:41,141 INFO L93 Difference]: Finished difference Result 8509 states and 9983 transitions. [2020-11-30 01:02:41,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:41,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-11-30 01:02:41,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:41,164 INFO L225 Difference]: With dead ends: 8509 [2020-11-30 01:02:41,164 INFO L226 Difference]: Without dead ends: 4536 [2020-11-30 01:02:41,169 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 01:02:41,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4536 states. [2020-11-30 01:02:41,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4536 to 4255. [2020-11-30 01:02:41,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4255 states. [2020-11-30 01:02:41,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4255 states to 4255 states and 4899 transitions. [2020-11-30 01:02:41,269 INFO L78 Accepts]: Start accepts. Automaton has 4255 states and 4899 transitions. Word has length 183 [2020-11-30 01:02:41,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:41,270 INFO L481 AbstractCegarLoop]: Abstraction has 4255 states and 4899 transitions. [2020-11-30 01:02:41,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:02:41,271 INFO L276 IsEmpty]: Start isEmpty. Operand 4255 states and 4899 transitions. [2020-11-30 01:02:41,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-11-30 01:02:41,281 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:41,281 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:41,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:02:41,281 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:41,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:41,282 INFO L82 PathProgramCache]: Analyzing trace with hash 782453410, now seen corresponding path program 1 times [2020-11-30 01:02:41,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:41,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223559349] [2020-11-30 01:02:41,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-30 01:02:41,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223559349] [2020-11-30 01:02:41,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:41,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:02:41,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218873055] [2020-11-30 01:02:41,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:02:41,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:41,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:41,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:02:41,368 INFO L87 Difference]: Start difference. First operand 4255 states and 4899 transitions. Second operand 3 states. [2020-11-30 01:02:41,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:41,941 INFO L93 Difference]: Finished difference Result 8368 states and 9627 transitions. [2020-11-30 01:02:41,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:41,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-11-30 01:02:41,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:41,961 INFO L225 Difference]: With dead ends: 8368 [2020-11-30 01:02:41,962 INFO L226 Difference]: Without dead ends: 4115 [2020-11-30 01:02:41,967 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 01:02:41,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4115 states. [2020-11-30 01:02:42,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4115 to 3555. [2020-11-30 01:02:42,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3555 states. [2020-11-30 01:02:42,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3555 states to 3555 states and 3937 transitions. [2020-11-30 01:02:42,044 INFO L78 Accepts]: Start accepts. Automaton has 3555 states and 3937 transitions. Word has length 191 [2020-11-30 01:02:42,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:42,045 INFO L481 AbstractCegarLoop]: Abstraction has 3555 states and 3937 transitions. [2020-11-30 01:02:42,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:02:42,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3555 states and 3937 transitions. [2020-11-30 01:02:42,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-11-30 01:02:42,058 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:42,058 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:42,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:02:42,059 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:42,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:42,060 INFO L82 PathProgramCache]: Analyzing trace with hash 525837815, now seen corresponding path program 1 times [2020-11-30 01:02:42,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:42,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792108620] [2020-11-30 01:02:42,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:42,188 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 87 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-11-30 01:02:42,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792108620] [2020-11-30 01:02:42,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041746939] [2020-11-30 01:02:42,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/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 01:02:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:42,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:02:42,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:42,351 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-11-30 01:02:42,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:02:42,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 01:02:42,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475956160] [2020-11-30 01:02:42,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:02:42,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:42,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:42,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:42,354 INFO L87 Difference]: Start difference. First operand 3555 states and 3937 transitions. Second operand 3 states. [2020-11-30 01:02:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:42,842 INFO L93 Difference]: Finished difference Result 8090 states and 9036 transitions. [2020-11-30 01:02:42,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:42,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-11-30 01:02:42,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:42,864 INFO L225 Difference]: With dead ends: 8090 [2020-11-30 01:02:42,865 INFO L226 Difference]: Without dead ends: 4537 [2020-11-30 01:02:42,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:42,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4537 states. [2020-11-30 01:02:42,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4537 to 4535. [2020-11-30 01:02:42,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4535 states. [2020-11-30 01:02:42,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4535 states to 4535 states and 5028 transitions. [2020-11-30 01:02:42,977 INFO L78 Accepts]: Start accepts. Automaton has 4535 states and 5028 transitions. Word has length 214 [2020-11-30 01:02:42,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:42,978 INFO L481 AbstractCegarLoop]: Abstraction has 4535 states and 5028 transitions. [2020-11-30 01:02:42,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:02:42,978 INFO L276 IsEmpty]: Start isEmpty. Operand 4535 states and 5028 transitions. [2020-11-30 01:02:42,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-11-30 01:02:42,989 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:42,989 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:43,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-30 01:02:43,210 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:43,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:43,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1456486724, now seen corresponding path program 1 times [2020-11-30 01:02:43,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:43,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261651523] [2020-11-30 01:02:43,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:43,368 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 87 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-11-30 01:02:43,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261651523] [2020-11-30 01:02:43,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571992429] [2020-11-30 01:02:43,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:02:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:43,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:02:43,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:43,580 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-11-30 01:02:43,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:02:43,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-11-30 01:02:43,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347303942] [2020-11-30 01:02:43,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:02:43,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:43,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:43,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:43,582 INFO L87 Difference]: Start difference. First operand 4535 states and 5028 transitions. Second operand 3 states. [2020-11-30 01:02:43,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:43,875 INFO L93 Difference]: Finished difference Result 8351 states and 9268 transitions. [2020-11-30 01:02:43,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:43,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-11-30 01:02:43,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:43,893 INFO L225 Difference]: With dead ends: 8351 [2020-11-30 01:02:43,893 INFO L226 Difference]: Without dead ends: 3818 [2020-11-30 01:02:43,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:43,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2020-11-30 01:02:43,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3538. [2020-11-30 01:02:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3538 states. [2020-11-30 01:02:43,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 3872 transitions. [2020-11-30 01:02:43,970 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 3872 transitions. Word has length 217 [2020-11-30 01:02:43,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:43,970 INFO L481 AbstractCegarLoop]: Abstraction has 3538 states and 3872 transitions. [2020-11-30 01:02:43,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:02:43,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 3872 transitions. [2020-11-30 01:02:43,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-11-30 01:02:43,980 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:43,981 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:44,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:02:44,206 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:44,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:44,206 INFO L82 PathProgramCache]: Analyzing trace with hash 900263708, now seen corresponding path program 1 times [2020-11-30 01:02:44,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:44,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685005674] [2020-11-30 01:02:44,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 68 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:44,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685005674] [2020-11-30 01:02:44,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276587752] [2020-11-30 01:02:44,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:02:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:44,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:02:44,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:44,721 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-11-30 01:02:44,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:02:44,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 01:02:44,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159195926] [2020-11-30 01:02:44,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:02:44,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:44,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:44,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:44,724 INFO L87 Difference]: Start difference. First operand 3538 states and 3872 transitions. Second operand 3 states. [2020-11-30 01:02:45,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:45,211 INFO L93 Difference]: Finished difference Result 7208 states and 7901 transitions. [2020-11-30 01:02:45,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:45,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-11-30 01:02:45,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:45,212 INFO L225 Difference]: With dead ends: 7208 [2020-11-30 01:02:45,212 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:02:45,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:45,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:02:45,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:02:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:02:45,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:02:45,218 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2020-11-30 01:02:45,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:45,218 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:02:45,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:02:45,219 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:02:45,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:02:45,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:02:45,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:02:45,736 INFO L274 CegarLoopResult]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,737 INFO L274 CegarLoopResult]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,737 INFO L274 CegarLoopResult]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,737 INFO L274 CegarLoopResult]: For program point L301(lines 301 423) no Hoare annotation was computed. [2020-11-30 01:02:45,737 INFO L274 CegarLoopResult]: For program point L235(lines 235 423) no Hoare annotation was computed. [2020-11-30 01:02:45,737 INFO L274 CegarLoopResult]: For program point L169(lines 169 423) no Hoare annotation was computed. [2020-11-30 01:02:45,737 INFO L274 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-11-30 01:02:45,737 INFO L274 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-11-30 01:02:45,737 INFO L274 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-11-30 01:02:45,738 INFO L274 CegarLoopResult]: For program point L303(lines 303 423) no Hoare annotation was computed. [2020-11-30 01:02:45,738 INFO L274 CegarLoopResult]: For program point L105(lines 105 423) no Hoare annotation was computed. [2020-11-30 01:02:45,738 INFO L274 CegarLoopResult]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,738 INFO L274 CegarLoopResult]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,738 INFO L274 CegarLoopResult]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,738 INFO L274 CegarLoopResult]: For program point L40(lines 40 423) no Hoare annotation was computed. [2020-11-30 01:02:45,738 INFO L274 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-11-30 01:02:45,738 INFO L274 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-11-30 01:02:45,738 INFO L274 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-11-30 01:02:45,739 INFO L274 CegarLoopResult]: For program point L371(lines 371 423) no Hoare annotation was computed. [2020-11-30 01:02:45,739 INFO L274 CegarLoopResult]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,739 INFO L274 CegarLoopResult]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,739 INFO L274 CegarLoopResult]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,739 INFO L274 CegarLoopResult]: For program point L307(lines 307 423) no Hoare annotation was computed. [2020-11-30 01:02:45,739 INFO L274 CegarLoopResult]: For program point L175(lines 175 423) no Hoare annotation was computed. [2020-11-30 01:02:45,739 INFO L274 CegarLoopResult]: For program point L109(lines 109 423) no Hoare annotation was computed. [2020-11-30 01:02:45,739 INFO L274 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-11-30 01:02:45,739 INFO L274 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-11-30 01:02:45,740 INFO L274 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-11-30 01:02:45,740 INFO L274 CegarLoopResult]: For program point L308(lines 308 317) no Hoare annotation was computed. [2020-11-30 01:02:45,740 INFO L274 CegarLoopResult]: For program point L242(lines 242 423) no Hoare annotation was computed. [2020-11-30 01:02:45,740 INFO L274 CegarLoopResult]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2020-11-30 01:02:45,740 INFO L274 CegarLoopResult]: For program point L45(lines 45 423) no Hoare annotation was computed. [2020-11-30 01:02:45,740 INFO L274 CegarLoopResult]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,740 INFO L274 CegarLoopResult]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,740 INFO L274 CegarLoopResult]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,740 INFO L274 CegarLoopResult]: For program point L244(lines 244 423) no Hoare annotation was computed. [2020-11-30 01:02:45,741 INFO L274 CegarLoopResult]: For program point L575(line 575) no Hoare annotation was computed. [2020-11-30 01:02:45,741 INFO L274 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-11-30 01:02:45,741 INFO L274 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-11-30 01:02:45,741 INFO L274 CegarLoopResult]: For program point L179(lines 179 423) no Hoare annotation was computed. [2020-11-30 01:02:45,741 INFO L274 CegarLoopResult]: For program point L378(lines 378 423) no Hoare annotation was computed. [2020-11-30 01:02:45,746 INFO L274 CegarLoopResult]: For program point L48(lines 48 423) no Hoare annotation was computed. [2020-11-30 01:02:45,746 INFO L274 CegarLoopResult]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,747 INFO L274 CegarLoopResult]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,747 INFO L274 CegarLoopResult]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,747 INFO L274 CegarLoopResult]: For program point L247(lines 247 423) no Hoare annotation was computed. [2020-11-30 01:02:45,747 INFO L274 CegarLoopResult]: For program point L578(line 578) no Hoare annotation was computed. [2020-11-30 01:02:45,747 INFO L274 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-11-30 01:02:45,747 INFO L274 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-11-30 01:02:45,747 INFO L274 CegarLoopResult]: For program point L248(lines 248 256) no Hoare annotation was computed. [2020-11-30 01:02:45,747 INFO L274 CegarLoopResult]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2020-11-30 01:02:45,747 INFO L274 CegarLoopResult]: For program point L116(lines 116 423) no Hoare annotation was computed. [2020-11-30 01:02:45,748 INFO L274 CegarLoopResult]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,748 INFO L274 CegarLoopResult]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,748 INFO L274 CegarLoopResult]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,748 INFO L274 CegarLoopResult]: For program point L52(lines 52 423) no Hoare annotation was computed. [2020-11-30 01:02:45,749 INFO L274 CegarLoopResult]: For program point L581(line 581) no Hoare annotation was computed. [2020-11-30 01:02:45,749 INFO L274 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-11-30 01:02:45,749 INFO L274 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-11-30 01:02:45,749 INFO L274 CegarLoopResult]: For program point L185(lines 185 423) no Hoare annotation was computed. [2020-11-30 01:02:45,749 INFO L274 CegarLoopResult]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,749 INFO L274 CegarLoopResult]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,750 INFO L274 CegarLoopResult]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,750 INFO L274 CegarLoopResult]: For program point L385(lines 385 423) no Hoare annotation was computed. [2020-11-30 01:02:45,750 INFO L274 CegarLoopResult]: For program point L319(lines 319 423) no Hoare annotation was computed. [2020-11-30 01:02:45,750 INFO L274 CegarLoopResult]: For program point L584(line 584) no Hoare annotation was computed. [2020-11-30 01:02:45,750 INFO L274 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-11-30 01:02:45,750 INFO L274 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-11-30 01:02:45,750 INFO L274 CegarLoopResult]: For program point L189(lines 189 423) no Hoare annotation was computed. [2020-11-30 01:02:45,751 INFO L274 CegarLoopResult]: For program point L123(lines 123 423) no Hoare annotation was computed. [2020-11-30 01:02:45,751 INFO L274 CegarLoopResult]: For program point L57(lines 57 423) no Hoare annotation was computed. [2020-11-30 01:02:45,751 INFO L274 CegarLoopResult]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,751 INFO L274 CegarLoopResult]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,751 INFO L274 CegarLoopResult]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,751 INFO L274 CegarLoopResult]: For program point L388(lines 388 423) no Hoare annotation was computed. [2020-11-30 01:02:45,751 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:02:45,752 INFO L274 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-11-30 01:02:45,752 INFO L274 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-11-30 01:02:45,752 INFO L274 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-11-30 01:02:45,752 INFO L274 CegarLoopResult]: For program point L390(lines 390 423) no Hoare annotation was computed. [2020-11-30 01:02:45,752 INFO L274 CegarLoopResult]: For program point L324(lines 324 423) no Hoare annotation was computed. [2020-11-30 01:02:45,752 INFO L274 CegarLoopResult]: For program point L258(lines 258 423) no Hoare annotation was computed. [2020-11-30 01:02:45,752 INFO L274 CegarLoopResult]: For program point L60(lines 60 423) no Hoare annotation was computed. [2020-11-30 01:02:45,753 INFO L274 CegarLoopResult]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,753 INFO L274 CegarLoopResult]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,753 INFO L274 CegarLoopResult]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,753 INFO L274 CegarLoopResult]: For program point L391(lines 391 397) no Hoare annotation was computed. [2020-11-30 01:02:45,753 INFO L274 CegarLoopResult]: For program point L325(lines 325 336) no Hoare annotation was computed. [2020-11-30 01:02:45,753 INFO L274 CegarLoopResult]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2020-11-30 01:02:45,753 INFO L274 CegarLoopResult]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2020-11-30 01:02:45,754 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-11-30 01:02:45,754 INFO L274 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-11-30 01:02:45,754 INFO L274 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-11-30 01:02:45,754 INFO L274 CegarLoopResult]: For program point L195(lines 195 423) no Hoare annotation was computed. [2020-11-30 01:02:45,754 INFO L274 CegarLoopResult]: For program point L129(lines 129 423) no Hoare annotation was computed. [2020-11-30 01:02:45,754 INFO L274 CegarLoopResult]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,754 INFO L274 CegarLoopResult]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,755 INFO L274 CegarLoopResult]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,755 INFO L274 CegarLoopResult]: For program point L64(lines 64 423) no Hoare annotation was computed. [2020-11-30 01:02:45,755 INFO L274 CegarLoopResult]: For program point L593(line 593) no Hoare annotation was computed. [2020-11-30 01:02:45,755 INFO L274 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-11-30 01:02:45,755 INFO L274 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-11-30 01:02:45,755 INFO L274 CegarLoopResult]: For program point L263(lines 263 423) no Hoare annotation was computed. [2020-11-30 01:02:45,755 INFO L274 CegarLoopResult]: For program point L197(lines 197 423) no Hoare annotation was computed. [2020-11-30 01:02:45,756 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:02:45,756 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:02:45,756 INFO L274 CegarLoopResult]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,756 INFO L274 CegarLoopResult]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,756 INFO L274 CegarLoopResult]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,756 INFO L274 CegarLoopResult]: For program point L199(lines 199 423) no Hoare annotation was computed. [2020-11-30 01:02:45,757 INFO L274 CegarLoopResult]: For program point L133(lines 133 423) no Hoare annotation was computed. [2020-11-30 01:02:45,757 INFO L274 CegarLoopResult]: For program point L596(line 596) no Hoare annotation was computed. [2020-11-30 01:02:45,757 INFO L274 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-11-30 01:02:45,757 INFO L274 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-11-30 01:02:45,757 INFO L274 CegarLoopResult]: For program point L399(lines 399 423) no Hoare annotation was computed. [2020-11-30 01:02:45,757 INFO L274 CegarLoopResult]: For program point L201(lines 201 423) no Hoare annotation was computed. [2020-11-30 01:02:45,758 INFO L274 CegarLoopResult]: For program point L69(lines 69 423) no Hoare annotation was computed. [2020-11-30 01:02:45,758 INFO L274 CegarLoopResult]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,758 INFO L274 CegarLoopResult]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,758 INFO L274 CegarLoopResult]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,758 INFO L274 CegarLoopResult]: For program point L599(line 599) no Hoare annotation was computed. [2020-11-30 01:02:45,759 INFO L274 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-11-30 01:02:45,759 INFO L274 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-11-30 01:02:45,759 INFO L274 CegarLoopResult]: For program point L269(lines 269 423) no Hoare annotation was computed. [2020-11-30 01:02:45,760 INFO L274 CegarLoopResult]: For program point L204(lines 204 423) no Hoare annotation was computed. [2020-11-30 01:02:45,760 INFO L274 CegarLoopResult]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,760 INFO L274 CegarLoopResult]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,760 INFO L274 CegarLoopResult]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,760 INFO L274 CegarLoopResult]: For program point L271(lines 271 423) no Hoare annotation was computed. [2020-11-30 01:02:45,760 INFO L274 CegarLoopResult]: For program point L602(line 602) no Hoare annotation was computed. [2020-11-30 01:02:45,760 INFO L274 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-11-30 01:02:45,761 INFO L274 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-11-30 01:02:45,761 INFO L274 CegarLoopResult]: For program point L404(lines 404 423) no Hoare annotation was computed. [2020-11-30 01:02:45,761 INFO L274 CegarLoopResult]: For program point L338(lines 338 423) no Hoare annotation was computed. [2020-11-30 01:02:45,761 INFO L274 CegarLoopResult]: For program point L272(lines 272 284) no Hoare annotation was computed. [2020-11-30 01:02:45,761 INFO L274 CegarLoopResult]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2020-11-30 01:02:45,761 INFO L274 CegarLoopResult]: For program point L140(lines 140 423) no Hoare annotation was computed. [2020-11-30 01:02:45,762 INFO L274 CegarLoopResult]: For program point L75(lines 75 423) no Hoare annotation was computed. [2020-11-30 01:02:45,762 INFO L274 CegarLoopResult]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2020-11-30 01:02:45,762 INFO L274 CegarLoopResult]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,762 INFO L274 CegarLoopResult]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,762 INFO L274 CegarLoopResult]: For program point L208(lines 208 423) no Hoare annotation was computed. [2020-11-30 01:02:45,762 INFO L274 CegarLoopResult]: For program point L605(line 605) no Hoare annotation was computed. [2020-11-30 01:02:45,762 INFO L274 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-11-30 01:02:45,763 INFO L274 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-11-30 01:02:45,763 INFO L274 CegarLoopResult]: For program point L341(lines 341 423) no Hoare annotation was computed. [2020-11-30 01:02:45,763 INFO L274 CegarLoopResult]: For program point L408(lines 408 423) no Hoare annotation was computed. [2020-11-30 01:02:45,763 INFO L274 CegarLoopResult]: For program point L342(lines 342 345) no Hoare annotation was computed. [2020-11-30 01:02:45,763 INFO L274 CegarLoopResult]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2020-11-30 01:02:45,763 INFO L274 CegarLoopResult]: For program point L144(lines 144 423) no Hoare annotation was computed. [2020-11-30 01:02:45,763 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 01:02:45,765 INFO L270 CegarLoopResult]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse1 (= ~a19~0 1)) (.cse0 (<= ~a17~0 8))) (or (and (<= 10 ~a28~0) .cse0) (and .cse1 (= ~a21~0 1) .cse0) (and (<= ~a11~0 0) .cse1 .cse0) (and (<= ~a28~0 8) .cse0) (and (= ~a25~0 0) .cse0) (<= ~a17~0 7))) [2020-11-30 01:02:45,765 INFO L274 CegarLoopResult]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,766 INFO L274 CegarLoopResult]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,766 INFO L274 CegarLoopResult]: For program point L79(lines 79 423) no Hoare annotation was computed. [2020-11-30 01:02:45,766 INFO L274 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-11-30 01:02:45,766 INFO L274 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-11-30 01:02:45,766 INFO L274 CegarLoopResult]: For program point L212(lines 212 423) no Hoare annotation was computed. [2020-11-30 01:02:45,766 INFO L274 CegarLoopResult]: For program point L213(lines 213 220) no Hoare annotation was computed. [2020-11-30 01:02:45,767 INFO L274 CegarLoopResult]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2020-11-30 01:02:45,767 INFO L277 CegarLoopResult]: At program point L610(lines 610 627) the Hoare annotation is: true [2020-11-30 01:02:45,767 INFO L274 CegarLoopResult]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,767 INFO L274 CegarLoopResult]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,767 INFO L274 CegarLoopResult]: For program point L412(lines 412 423) no Hoare annotation was computed. [2020-11-30 01:02:45,767 INFO L274 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-11-30 01:02:45,767 INFO L274 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-11-30 01:02:45,768 INFO L274 CegarLoopResult]: For program point L347(lines 347 423) no Hoare annotation was computed. [2020-11-30 01:02:45,768 INFO L274 CegarLoopResult]: For program point L149(lines 149 423) no Hoare annotation was computed. [2020-11-30 01:02:45,768 INFO L274 CegarLoopResult]: For program point L414(lines 414 423) no Hoare annotation was computed. [2020-11-30 01:02:45,768 INFO L274 CegarLoopResult]: For program point L348(lines 348 357) no Hoare annotation was computed. [2020-11-30 01:02:45,768 INFO L274 CegarLoopResult]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2020-11-30 01:02:45,768 INFO L274 CegarLoopResult]: For program point L84(lines 84 423) no Hoare annotation was computed. [2020-11-30 01:02:45,768 INFO L274 CegarLoopResult]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,769 INFO L274 CegarLoopResult]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,769 INFO L274 CegarLoopResult]: For program point L85(lines 85 90) no Hoare annotation was computed. [2020-11-30 01:02:45,769 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2020-11-30 01:02:45,769 INFO L274 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-11-30 01:02:45,769 INFO L274 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-11-30 01:02:45,769 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:02:45,769 INFO L274 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-11-30 01:02:45,770 INFO L274 CegarLoopResult]: For program point L153(lines 153 423) no Hoare annotation was computed. [2020-11-30 01:02:45,770 INFO L270 CegarLoopResult]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse1 (= ~a19~0 1)) (.cse0 (<= ~a17~0 8))) (or (and (<= 10 ~a28~0) .cse0) (and .cse1 (= ~a21~0 1) .cse0) (and (<= ~a11~0 0) .cse1 .cse0) (and (<= ~a28~0 8) .cse0) (and (= ~a25~0 0) .cse0) (<= ~a17~0 7))) [2020-11-30 01:02:45,770 INFO L274 CegarLoopResult]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,770 INFO L274 CegarLoopResult]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,770 INFO L274 CegarLoopResult]: For program point L286(lines 286 423) no Hoare annotation was computed. [2020-11-30 01:02:45,770 INFO L274 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-11-30 01:02:45,771 INFO L274 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-11-30 01:02:45,771 INFO L274 CegarLoopResult]: For program point L419(lines 419 423) no Hoare annotation was computed. [2020-11-30 01:02:45,771 INFO L274 CegarLoopResult]: For program point L222(lines 222 423) no Hoare annotation was computed. [2020-11-30 01:02:45,771 INFO L274 CegarLoopResult]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,771 INFO L274 CegarLoopResult]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,771 INFO L274 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-11-30 01:02:45,771 INFO L274 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-11-30 01:02:45,772 INFO L274 CegarLoopResult]: For program point L290(lines 290 423) no Hoare annotation was computed. [2020-11-30 01:02:45,772 INFO L274 CegarLoopResult]: For program point L158(lines 158 423) no Hoare annotation was computed. [2020-11-30 01:02:45,772 INFO L274 CegarLoopResult]: For program point L92(lines 92 423) no Hoare annotation was computed. [2020-11-30 01:02:45,772 INFO L274 CegarLoopResult]: For program point L621(line 621) no Hoare annotation was computed. [2020-11-30 01:02:45,772 INFO L274 CegarLoopResult]: For program point L225(lines 225 423) no Hoare annotation was computed. [2020-11-30 01:02:45,772 INFO L274 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-11-30 01:02:45,772 INFO L274 CegarLoopResult]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2020-11-30 01:02:45,773 INFO L274 CegarLoopResult]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,773 INFO L274 CegarLoopResult]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,773 INFO L274 CegarLoopResult]: For program point L424(lines 424 426) no Hoare annotation was computed. [2020-11-30 01:02:45,773 INFO L274 CegarLoopResult]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,773 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:02:45,773 INFO L274 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-11-30 01:02:45,773 INFO L274 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-11-30 01:02:45,774 INFO L274 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-11-30 01:02:45,774 INFO L274 CegarLoopResult]: For program point L359(lines 359 423) no Hoare annotation was computed. [2020-11-30 01:02:45,774 INFO L274 CegarLoopResult]: For program point L293(lines 293 423) no Hoare annotation was computed. [2020-11-30 01:02:45,774 INFO L274 CegarLoopResult]: For program point L228(lines 228 423) no Hoare annotation was computed. [2020-11-30 01:02:45,774 INFO L274 CegarLoopResult]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,774 INFO L274 CegarLoopResult]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,774 INFO L274 CegarLoopResult]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,775 INFO L274 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-11-30 01:02:45,775 INFO L274 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-11-30 01:02:45,775 INFO L274 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-11-30 01:02:45,775 INFO L274 CegarLoopResult]: For program point L296(lines 296 423) no Hoare annotation was computed. [2020-11-30 01:02:45,775 INFO L274 CegarLoopResult]: For program point L164(lines 164 423) no Hoare annotation was computed. [2020-11-30 01:02:45,775 INFO L274 CegarLoopResult]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,775 INFO L274 CegarLoopResult]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,776 INFO L274 CegarLoopResult]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 01:02:45,776 INFO L274 CegarLoopResult]: For program point L364(lines 364 423) no Hoare annotation was computed. [2020-11-30 01:02:45,776 INFO L274 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-11-30 01:02:45,776 INFO L274 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-11-30 01:02:45,776 INFO L274 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-11-30 01:02:45,776 INFO L274 CegarLoopResult]: For program point L233(lines 233 423) no Hoare annotation was computed. [2020-11-30 01:02:45,776 INFO L274 CegarLoopResult]: For program point L101(lines 101 423) no Hoare annotation was computed. [2020-11-30 01:02:45,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:02:45 BoogieIcfgContainer [2020-11-30 01:02:45,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:02:45,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:02:45,819 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:02:45,820 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:02:45,820 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:30" (3/4) ... [2020-11-30 01:02:45,826 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:02:45,848 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 01:02:45,849 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:02:45,852 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:02:45,853 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:02:46,025 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8d16075c-8949-453e-bd70-cdd21c7f5ac9/bin/uautomizer/witness.graphml [2020-11-30 01:02:46,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:02:46,027 INFO L168 Benchmark]: Toolchain (without parser) took 18238.75 ms. Allocated memory was 111.1 MB in the beginning and 381.7 MB in the end (delta: 270.5 MB). Free memory was 78.5 MB in the beginning and 213.3 MB in the end (delta: -134.7 MB). Peak memory consumption was 134.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:46,028 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 75.5 MB. Free memory was 34.7 MB in the beginning and 34.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:02:46,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.67 ms. Allocated memory is still 111.1 MB. Free memory was 78.5 MB in the beginning and 72.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:46,029 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.33 ms. Allocated memory is still 111.1 MB. Free memory was 72.0 MB in the beginning and 66.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:46,029 INFO L168 Benchmark]: Boogie Preprocessor took 68.01 ms. Allocated memory is still 111.1 MB. Free memory was 66.3 MB in the beginning and 62.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:46,030 INFO L168 Benchmark]: RCFGBuilder took 1616.87 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 62.1 MB in the beginning and 72.4 MB in the end (delta: -10.3 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:46,030 INFO L168 Benchmark]: TraceAbstraction took 15507.59 ms. Allocated memory was 138.4 MB in the beginning and 381.7 MB in the end (delta: 243.3 MB). Free memory was 72.4 MB in the beginning and 228.0 MB in the end (delta: -155.6 MB). Peak memory consumption was 87.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:46,031 INFO L168 Benchmark]: Witness Printer took 206.44 ms. Allocated memory is still 381.7 MB. Free memory was 228.0 MB in the beginning and 213.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:46,033 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 75.5 MB. Free memory was 34.7 MB in the beginning and 34.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 707.67 ms. Allocated memory is still 111.1 MB. Free memory was 78.5 MB in the beginning and 72.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.33 ms. Allocated memory is still 111.1 MB. Free memory was 72.0 MB in the beginning and 66.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.01 ms. Allocated memory is still 111.1 MB. Free memory was 66.3 MB in the beginning and 62.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1616.87 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 62.1 MB in the beginning and 72.4 MB in the end (delta: -10.3 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15507.59 ms. Allocated memory was 138.4 MB in the beginning and 381.7 MB in the end (delta: 243.3 MB). Free memory was 72.4 MB in the beginning and 228.0 MB in the end (delta: -155.6 MB). Peak memory consumption was 87.3 MB. Max. memory is 16.1 GB. * Witness Printer took 206.44 ms. Allocated memory is still 381.7 MB. Free memory was 228.0 MB in the beginning and 213.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((10 <= a28 && a17 <= 8) || ((a19 == 1 && a21 == 1) && a17 <= 8)) || ((a11 <= 0 && a19 == 1) && a17 <= 8)) || (a28 <= 8 && a17 <= 8)) || (a25 == 0 && a17 <= 8)) || a17 <= 7 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((10 <= a28 && a17 <= 8) || ((a19 == 1 && a21 == 1) && a17 <= 8)) || ((a11 <= 0 && a19 == 1) && a17 <= 8)) || (a28 <= 8 && a17 <= 8)) || (a25 == 0 && a17 <= 8)) || a17 <= 7 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.0s, OverallIterations: 12, TraceHistogramMax: 5, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1388 SDtfs, 1505 SDslu, 227 SDs, 0 SdLazy, 4679 SolverSat, 853 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1370 GetRequests, 1335 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4535occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 1884 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 67 NumberOfFragments, 91 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2828 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 114 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 3496 NumberOfCodeBlocks, 3496 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3477 ConstructedInterpolants, 0 QuantifiedInterpolants, 1838397 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2429 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 1235/1331 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...