./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label36.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label36.c -s /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/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 9732118990568cf242ce5c36af54daf44dd294d6 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 14:59:58,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:59:58,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:59:58,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:59:58,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:59:58,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:59:58,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:59:58,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:59:58,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:59:58,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:59:58,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:59:58,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:59:58,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:59:58,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:59:58,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:59:58,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:59:58,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:59:58,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:59:58,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:59:58,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:59:58,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:59:58,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:59:58,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:59:58,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:59:58,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:59:58,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:59:58,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:59:58,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:59:58,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:59:58,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:59:58,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:59:58,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:59:58,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:59:58,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:59:58,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:59:58,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:59:58,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:59:58,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:59:58,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:59:58,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:59:58,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:59:58,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 14:59:58,330 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:59:58,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:59:58,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:59:58,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:59:58,333 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:59:58,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:59:58,334 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:59:58,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 14:59:58,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:59:58,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:59:58,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 14:59:58,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 14:59:58,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 14:59:58,337 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:59:58,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 14:59:58,338 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:59:58,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 14:59:58,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:59:58,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:59:58,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 14:59:58,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 14:59:58,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:59:58,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:59:58,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 14:59:58,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 14:59:58,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 14:59:58,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 14:59:58,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 14:59:58,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:59:58,343 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_efe57015-afe5-4232-a9d5-027225d16ccd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9732118990568cf242ce5c36af54daf44dd294d6 [2020-12-01 14:59:58,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:59:58,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:59:58,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:59:58,707 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:59:58,709 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:59:58,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label36.c [2020-12-01 14:59:58,790 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/bin/uautomizer/data/b0b65590d/a754a73db4de4f2c9e73f050bc8a2554/FLAGfb0b7b04a [2020-12-01 14:59:59,526 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:59:59,526 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/sv-benchmarks/c/eca-rers2012/Problem14_label36.c [2020-12-01 14:59:59,566 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/bin/uautomizer/data/b0b65590d/a754a73db4de4f2c9e73f050bc8a2554/FLAGfb0b7b04a [2020-12-01 14:59:59,738 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/bin/uautomizer/data/b0b65590d/a754a73db4de4f2c9e73f050bc8a2554 [2020-12-01 14:59:59,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:59:59,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 14:59:59,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:59:59,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:59:59,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:59:59,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:59:59" (1/1) ... [2020-12-01 14:59:59,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c594dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:59, skipping insertion in model container [2020-12-01 14:59:59,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:59:59" (1/1) ... [2020-12-01 14:59:59,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:59:59,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:00:00,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:00:00,350 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:00:00,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:00:00,531 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:00:00,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:00 WrapperNode [2020-12-01 15:00:00,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:00:00,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:00:00,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:00:00,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:00:00,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:00" (1/1) ... [2020-12-01 15:00:00,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:00" (1/1) ... [2020-12-01 15:00:00,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:00:00,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:00:00,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:00:00,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:00:00,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:00" (1/1) ... [2020-12-01 15:00:00,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:00" (1/1) ... [2020-12-01 15:00:00,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:00" (1/1) ... [2020-12-01 15:00:00,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:00" (1/1) ... [2020-12-01 15:00:00,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:00" (1/1) ... [2020-12-01 15:00:00,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:00" (1/1) ... [2020-12-01 15:00:00,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:00" (1/1) ... [2020-12-01 15:00:00,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:00:00,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:00:00,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:00:00,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:00:00,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/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 [2020-12-01 15:00:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:00:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:00:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:00:00,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:00:02,736 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:00:02,736 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:00:02,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:00:02 BoogieIcfgContainer [2020-12-01 15:00:02,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:00:02,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:00:02,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:00:02,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:00:02,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:59:59" (1/3) ... [2020-12-01 15:00:02,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50eab83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:00:02, skipping insertion in model container [2020-12-01 15:00:02,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:00" (2/3) ... [2020-12-01 15:00:02,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50eab83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:00:02, skipping insertion in model container [2020-12-01 15:00:02,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:00:02" (3/3) ... [2020-12-01 15:00:02,749 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2020-12-01 15:00:02,764 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:00:02,768 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:00:02,780 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:00:02,826 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:00:02,827 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:00:02,827 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:00:02,827 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:00:02,827 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:00:02,828 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:00:02,828 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:00:02,828 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:00:02,850 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-12-01 15:00:02,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-01 15:00:02,858 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:02,859 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] [2020-12-01 15:00:02,859 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:02,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:02,866 INFO L82 PathProgramCache]: Analyzing trace with hash 563919826, now seen corresponding path program 1 times [2020-12-01 15:00:02,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:02,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502517196] [2020-12-01 15:00:02,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:03,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502517196] [2020-12-01 15:00:03,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:03,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:00:03,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848291752] [2020-12-01 15:00:03,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:03,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:03,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:03,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:03,283 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-12-01 15:00:04,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:04,602 INFO L93 Difference]: Finished difference Result 670 states and 1201 transitions. [2020-12-01 15:00:04,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:04,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-01 15:00:04,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:04,640 INFO L225 Difference]: With dead ends: 670 [2020-12-01 15:00:04,643 INFO L226 Difference]: Without dead ends: 360 [2020-12-01 15:00:04,650 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 [2020-12-01 15:00:04,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-01 15:00:04,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-01 15:00:04,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-01 15:00:04,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2020-12-01 15:00:04,727 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 48 [2020-12-01 15:00:04,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:04,728 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2020-12-01 15:00:04,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:04,728 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2020-12-01 15:00:04,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-01 15:00:04,733 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:04,734 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 15:00:04,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:00:04,734 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:04,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:04,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1704322678, now seen corresponding path program 1 times [2020-12-01 15:00:04,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:04,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79827930] [2020-12-01 15:00:04,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:04,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79827930] [2020-12-01 15:00:04,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:04,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:00:04,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216054131] [2020-12-01 15:00:04,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:04,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:04,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:04,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:04,915 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand 3 states. [2020-12-01 15:00:05,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:05,928 INFO L93 Difference]: Finished difference Result 1074 states and 1759 transitions. [2020-12-01 15:00:05,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:05,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-12-01 15:00:05,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:05,934 INFO L225 Difference]: With dead ends: 1074 [2020-12-01 15:00:05,934 INFO L226 Difference]: Without dead ends: 716 [2020-12-01 15:00:05,937 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 [2020-12-01 15:00:05,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-01 15:00:05,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 538. [2020-12-01 15:00:05,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-12-01 15:00:05,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 802 transitions. [2020-12-01 15:00:05,973 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 802 transitions. Word has length 113 [2020-12-01 15:00:05,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:05,973 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 802 transitions. [2020-12-01 15:00:05,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:05,974 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 802 transitions. [2020-12-01 15:00:05,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-12-01 15:00:05,980 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:05,980 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 15:00:05,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:00:05,981 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:05,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:05,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1499800359, now seen corresponding path program 1 times [2020-12-01 15:00:05,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:05,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183620851] [2020-12-01 15:00:05,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:06,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183620851] [2020-12-01 15:00:06,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:06,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:00:06,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947329721] [2020-12-01 15:00:06,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:00:06,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:06,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:00:06,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:00:06,309 INFO L87 Difference]: Start difference. First operand 538 states and 802 transitions. Second operand 4 states. [2020-12-01 15:00:07,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:07,736 INFO L93 Difference]: Finished difference Result 1430 states and 2030 transitions. [2020-12-01 15:00:07,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:00:07,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-12-01 15:00:07,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:07,747 INFO L225 Difference]: With dead ends: 1430 [2020-12-01 15:00:07,747 INFO L226 Difference]: Without dead ends: 894 [2020-12-01 15:00:07,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:00:07,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-12-01 15:00:07,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2020-12-01 15:00:07,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-12-01 15:00:07,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2020-12-01 15:00:07,795 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 127 [2020-12-01 15:00:07,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:07,796 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2020-12-01 15:00:07,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:00:07,796 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2020-12-01 15:00:07,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-12-01 15:00:07,802 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:07,802 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:07,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:00:07,803 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:07,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:07,804 INFO L82 PathProgramCache]: Analyzing trace with hash -240875685, now seen corresponding path program 1 times [2020-12-01 15:00:07,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:07,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815327998] [2020-12-01 15:00:07,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:08,096 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-12-01 15:00:08,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815327998] [2020-12-01 15:00:08,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:08,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:00:08,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389044384] [2020-12-01 15:00:08,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:00:08,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:08,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:00:08,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:00:08,101 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand 4 states. [2020-12-01 15:00:09,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:09,178 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2020-12-01 15:00:09,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:00:09,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 207 [2020-12-01 15:00:09,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:09,185 INFO L225 Difference]: With dead ends: 1993 [2020-12-01 15:00:09,186 INFO L226 Difference]: Without dead ends: 1072 [2020-12-01 15:00:09,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:00:09,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-01 15:00:09,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-01 15:00:09,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-01 15:00:09,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2020-12-01 15:00:09,216 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 207 [2020-12-01 15:00:09,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:09,216 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2020-12-01 15:00:09,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:00:09,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2020-12-01 15:00:09,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-12-01 15:00:09,220 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:09,220 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-01 15:00:09,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:00:09,220 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:09,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:09,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1163538037, now seen corresponding path program 1 times [2020-12-01 15:00:09,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:09,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309524685] [2020-12-01 15:00:09,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:09,499 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 91 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:09,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309524685] [2020-12-01 15:00:09,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945622343] [2020-12-01 15:00:09,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/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 [2020-12-01 15:00:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:09,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:00:09,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:00:10,099 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-12-01 15:00:10,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:00:10,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-01 15:00:10,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454065273] [2020-12-01 15:00:10,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:10,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:10,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:10,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:00:10,103 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand 3 states. [2020-12-01 15:00:10,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:10,948 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2020-12-01 15:00:10,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:10,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2020-12-01 15:00:10,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:10,957 INFO L225 Difference]: With dead ends: 2320 [2020-12-01 15:00:10,957 INFO L226 Difference]: Without dead ends: 1250 [2020-12-01 15:00:10,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:00:10,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-01 15:00:10,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2020-12-01 15:00:10,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-01 15:00:10,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2020-12-01 15:00:10,987 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 219 [2020-12-01 15:00:10,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:10,987 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2020-12-01 15:00:10,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:10,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2020-12-01 15:00:10,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-12-01 15:00:10,991 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:10,991 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-01 15:00:11,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:00:11,206 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:11,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:11,206 INFO L82 PathProgramCache]: Analyzing trace with hash -199208916, now seen corresponding path program 1 times [2020-12-01 15:00:11,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:11,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046035554] [2020-12-01 15:00:11,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:11,445 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:11,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046035554] [2020-12-01 15:00:11,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:11,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:00:11,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399452472] [2020-12-01 15:00:11,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:11,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:11,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:11,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:11,451 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand 3 states. [2020-12-01 15:00:12,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:12,381 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2020-12-01 15:00:12,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:12,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2020-12-01 15:00:12,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:12,391 INFO L225 Difference]: With dead ends: 2854 [2020-12-01 15:00:12,392 INFO L226 Difference]: Without dead ends: 1784 [2020-12-01 15:00:12,394 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 [2020-12-01 15:00:12,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2020-12-01 15:00:12,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2020-12-01 15:00:12,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-12-01 15:00:12,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1824 transitions. [2020-12-01 15:00:12,436 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1824 transitions. Word has length 222 [2020-12-01 15:00:12,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:12,437 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1824 transitions. [2020-12-01 15:00:12,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:12,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1824 transitions. [2020-12-01 15:00:12,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-12-01 15:00:12,443 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:12,444 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2020-12-01 15:00:12,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:00:12,444 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:12,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:12,445 INFO L82 PathProgramCache]: Analyzing trace with hash -87693209, now seen corresponding path program 1 times [2020-12-01 15:00:12,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:12,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854421440] [2020-12-01 15:00:12,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:12,829 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-12-01 15:00:12,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854421440] [2020-12-01 15:00:12,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:12,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:00:12,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683538049] [2020-12-01 15:00:12,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:00:12,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:12,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:00:12,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:00:12,833 INFO L87 Difference]: Start difference. First operand 1606 states and 1824 transitions. Second operand 4 states. [2020-12-01 15:00:13,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:13,827 INFO L93 Difference]: Finished difference Result 3268 states and 3727 transitions. [2020-12-01 15:00:13,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:00:13,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 339 [2020-12-01 15:00:13,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:13,839 INFO L225 Difference]: With dead ends: 3268 [2020-12-01 15:00:13,839 INFO L226 Difference]: Without dead ends: 1784 [2020-12-01 15:00:13,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:00:13,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2020-12-01 15:00:13,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2020-12-01 15:00:13,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-12-01 15:00:13,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1751 transitions. [2020-12-01 15:00:13,890 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1751 transitions. Word has length 339 [2020-12-01 15:00:13,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:13,893 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1751 transitions. [2020-12-01 15:00:13,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:00:13,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1751 transitions. [2020-12-01 15:00:13,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2020-12-01 15:00:13,903 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:13,904 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:13,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 15:00:13,904 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:13,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:13,905 INFO L82 PathProgramCache]: Analyzing trace with hash 816638732, now seen corresponding path program 1 times [2020-12-01 15:00:13,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:13,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083575775] [2020-12-01 15:00:13,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:14,335 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 389 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-01 15:00:14,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083575775] [2020-12-01 15:00:14,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:14,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:00:14,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752100055] [2020-12-01 15:00:14,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:14,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:14,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:14,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:14,339 INFO L87 Difference]: Start difference. First operand 1606 states and 1751 transitions. Second operand 3 states. [2020-12-01 15:00:15,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:15,148 INFO L93 Difference]: Finished difference Result 3922 states and 4309 transitions. [2020-12-01 15:00:15,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:15,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 434 [2020-12-01 15:00:15,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:15,162 INFO L225 Difference]: With dead ends: 3922 [2020-12-01 15:00:15,162 INFO L226 Difference]: Without dead ends: 2496 [2020-12-01 15:00:15,165 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 [2020-12-01 15:00:15,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-12-01 15:00:15,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1962. [2020-12-01 15:00:15,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-12-01 15:00:15,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2110 transitions. [2020-12-01 15:00:15,217 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2110 transitions. Word has length 434 [2020-12-01 15:00:15,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:15,218 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2110 transitions. [2020-12-01 15:00:15,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2110 transitions. [2020-12-01 15:00:15,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2020-12-01 15:00:15,228 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:15,228 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:15,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 15:00:15,229 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:15,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:15,229 INFO L82 PathProgramCache]: Analyzing trace with hash -991017399, now seen corresponding path program 1 times [2020-12-01 15:00:15,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:15,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782970197] [2020-12-01 15:00:15,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:15,594 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 389 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-01 15:00:15,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782970197] [2020-12-01 15:00:15,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:15,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:00:15,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344446366] [2020-12-01 15:00:15,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:15,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:15,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:15,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:15,598 INFO L87 Difference]: Start difference. First operand 1962 states and 2110 transitions. Second operand 3 states. [2020-12-01 15:00:16,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:16,380 INFO L93 Difference]: Finished difference Result 4456 states and 4861 transitions. [2020-12-01 15:00:16,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:16,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 441 [2020-12-01 15:00:16,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:16,395 INFO L225 Difference]: With dead ends: 4456 [2020-12-01 15:00:16,395 INFO L226 Difference]: Without dead ends: 2674 [2020-12-01 15:00:16,398 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 [2020-12-01 15:00:16,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-12-01 15:00:16,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-12-01 15:00:16,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-12-01 15:00:16,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2661 transitions. [2020-12-01 15:00:16,457 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2661 transitions. Word has length 441 [2020-12-01 15:00:16,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:16,458 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2661 transitions. [2020-12-01 15:00:16,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:16,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2661 transitions. [2020-12-01 15:00:16,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2020-12-01 15:00:16,475 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:16,476 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-12-01 15:00:16,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 15:00:16,476 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:16,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:16,477 INFO L82 PathProgramCache]: Analyzing trace with hash -977194400, now seen corresponding path program 1 times [2020-12-01 15:00:16,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:16,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585385548] [2020-12-01 15:00:16,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:17,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 504 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-12-01 15:00:17,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585385548] [2020-12-01 15:00:17,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:17,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:00:17,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255330193] [2020-12-01 15:00:17,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:17,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:17,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:17,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:17,078 INFO L87 Difference]: Start difference. First operand 2496 states and 2661 transitions. Second operand 3 states. [2020-12-01 15:00:17,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:17,881 INFO L93 Difference]: Finished difference Result 5524 states and 5971 transitions. [2020-12-01 15:00:17,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:17,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 596 [2020-12-01 15:00:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:17,900 INFO L225 Difference]: With dead ends: 5524 [2020-12-01 15:00:17,900 INFO L226 Difference]: Without dead ends: 3208 [2020-12-01 15:00:17,903 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 [2020-12-01 15:00:17,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-12-01 15:00:17,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3208. [2020-12-01 15:00:17,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-12-01 15:00:17,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3414 transitions. [2020-12-01 15:00:17,980 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3414 transitions. Word has length 596 [2020-12-01 15:00:17,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:17,982 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3414 transitions. [2020-12-01 15:00:17,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:17,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3414 transitions. [2020-12-01 15:00:17,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2020-12-01 15:00:17,988 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:17,989 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-12-01 15:00:17,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-01 15:00:17,989 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:17,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:17,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1620333677, now seen corresponding path program 1 times [2020-12-01 15:00:17,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:17,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884076059] [2020-12-01 15:00:17,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:18,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 781 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2020-12-01 15:00:18,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884076059] [2020-12-01 15:00:18,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:18,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:00:18,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121803759] [2020-12-01 15:00:18,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:18,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:18,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:18,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:18,688 INFO L87 Difference]: Start difference. First operand 3208 states and 3414 transitions. Second operand 3 states. [2020-12-01 15:00:19,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:19,350 INFO L93 Difference]: Finished difference Result 6948 states and 7469 transitions. [2020-12-01 15:00:19,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:19,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 614 [2020-12-01 15:00:19,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:19,370 INFO L225 Difference]: With dead ends: 6948 [2020-12-01 15:00:19,370 INFO L226 Difference]: Without dead ends: 3920 [2020-12-01 15:00:19,375 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 [2020-12-01 15:00:19,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-12-01 15:00:19,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2020-12-01 15:00:19,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-12-01 15:00:19,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3807 transitions. [2020-12-01 15:00:19,452 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3807 transitions. Word has length 614 [2020-12-01 15:00:19,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:19,453 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3807 transitions. [2020-12-01 15:00:19,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:19,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3807 transitions. [2020-12-01 15:00:19,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2020-12-01 15:00:19,460 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:19,461 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:19,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-01 15:00:19,461 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:19,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:19,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1003123309, now seen corresponding path program 1 times [2020-12-01 15:00:19,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:19,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318492340] [2020-12-01 15:00:19,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:20,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 872 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-01 15:00:20,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318492340] [2020-12-01 15:00:20,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276595620] [2020-12-01 15:00:20,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/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 [2020-12-01 15:00:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:20,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:00:20,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:00:21,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2020-12-01 15:00:21,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:00:21,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-01 15:00:21,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228781856] [2020-12-01 15:00:21,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:21,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:21,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:21,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:00:21,264 INFO L87 Difference]: Start difference. First operand 3564 states and 3807 transitions. Second operand 3 states. [2020-12-01 15:00:21,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:21,961 INFO L93 Difference]: Finished difference Result 8016 states and 8553 transitions. [2020-12-01 15:00:21,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:21,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 637 [2020-12-01 15:00:21,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:21,983 INFO L225 Difference]: With dead ends: 8016 [2020-12-01 15:00:21,983 INFO L226 Difference]: Without dead ends: 3742 [2020-12-01 15:00:21,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:00:21,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-12-01 15:00:22,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3564. [2020-12-01 15:00:22,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-12-01 15:00:22,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3786 transitions. [2020-12-01 15:00:22,061 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3786 transitions. Word has length 637 [2020-12-01 15:00:22,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:22,062 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3786 transitions. [2020-12-01 15:00:22,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:22,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3786 transitions. [2020-12-01 15:00:22,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2020-12-01 15:00:22,072 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:22,073 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:22,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-01 15:00:22,294 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:22,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:22,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1031044990, now seen corresponding path program 1 times [2020-12-01 15:00:22,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:22,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99655491] [2020-12-01 15:00:22,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1799 backedges. 1284 proven. 155 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2020-12-01 15:00:23,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99655491] [2020-12-01 15:00:23,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378243982] [2020-12-01 15:00:23,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/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 [2020-12-01 15:00:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:23,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:00:23,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:00:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1799 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2020-12-01 15:00:24,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:00:24,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-01 15:00:24,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858652266] [2020-12-01 15:00:24,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:24,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:24,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:24,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:00:24,592 INFO L87 Difference]: Start difference. First operand 3564 states and 3786 transitions. Second operand 3 states. [2020-12-01 15:00:25,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:25,204 INFO L93 Difference]: Finished difference Result 4456 states and 4725 transitions. [2020-12-01 15:00:25,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:25,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 784 [2020-12-01 15:00:25,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:25,246 INFO L225 Difference]: With dead ends: 4456 [2020-12-01 15:00:25,246 INFO L226 Difference]: Without dead ends: 4454 [2020-12-01 15:00:25,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 784 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:00:25,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-12-01 15:00:25,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3564. [2020-12-01 15:00:25,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-12-01 15:00:25,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3786 transitions. [2020-12-01 15:00:25,352 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3786 transitions. Word has length 784 [2020-12-01 15:00:25,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:25,355 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3786 transitions. [2020-12-01 15:00:25,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:25,355 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3786 transitions. [2020-12-01 15:00:25,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2020-12-01 15:00:25,370 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:25,371 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:25,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-01 15:00:25,598 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:25,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:25,599 INFO L82 PathProgramCache]: Analyzing trace with hash 591489514, now seen corresponding path program 1 times [2020-12-01 15:00:25,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:25,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590131278] [2020-12-01 15:00:25,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:26,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1839 backedges. 1324 proven. 155 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2020-12-01 15:00:26,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590131278] [2020-12-01 15:00:26,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604062845] [2020-12-01 15:00:26,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/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 [2020-12-01 15:00:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:26,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:00:26,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:00:27,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1839 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2020-12-01 15:00:27,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:00:27,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-01 15:00:27,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315272879] [2020-12-01 15:00:27,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:27,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:27,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:27,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:00:27,721 INFO L87 Difference]: Start difference. First operand 3564 states and 3786 transitions. Second operand 3 states. [2020-12-01 15:00:28,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:28,386 INFO L93 Difference]: Finished difference Result 7838 states and 8347 transitions. [2020-12-01 15:00:28,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:28,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 792 [2020-12-01 15:00:28,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:28,403 INFO L225 Difference]: With dead ends: 7838 [2020-12-01 15:00:28,403 INFO L226 Difference]: Without dead ends: 4454 [2020-12-01 15:00:28,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 795 GetRequests, 792 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:00:28,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-12-01 15:00:28,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4098. [2020-12-01 15:00:28,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2020-12-01 15:00:28,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4346 transitions. [2020-12-01 15:00:28,476 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4346 transitions. Word has length 792 [2020-12-01 15:00:28,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:28,478 INFO L481 AbstractCegarLoop]: Abstraction has 4098 states and 4346 transitions. [2020-12-01 15:00:28,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:28,478 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4346 transitions. [2020-12-01 15:00:28,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 979 [2020-12-01 15:00:28,492 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:28,493 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:28,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:00:28,718 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:28,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:28,719 INFO L82 PathProgramCache]: Analyzing trace with hash -386747347, now seen corresponding path program 1 times [2020-12-01 15:00:28,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:28,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761861822] [2020-12-01 15:00:28,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2725 backedges. 1182 proven. 642 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2020-12-01 15:00:31,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761861822] [2020-12-01 15:00:31,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775919582] [2020-12-01 15:00:31,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/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 [2020-12-01 15:00:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:31,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:00:31,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:00:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2725 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 2404 trivial. 0 not checked. [2020-12-01 15:00:32,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:00:32,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-01 15:00:32,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386240689] [2020-12-01 15:00:32,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:32,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:32,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:32,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:00:32,883 INFO L87 Difference]: Start difference. First operand 4098 states and 4346 transitions. Second operand 3 states. [2020-12-01 15:00:33,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:33,553 INFO L93 Difference]: Finished difference Result 8726 states and 9306 transitions. [2020-12-01 15:00:33,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:33,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 978 [2020-12-01 15:00:33,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:33,556 INFO L225 Difference]: With dead ends: 8726 [2020-12-01 15:00:33,556 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:00:33,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 983 GetRequests, 978 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:00:33,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:00:33,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:00:33,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:00:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:00:33,567 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 978 [2020-12-01 15:00:33,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:33,568 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:00:33,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:33,568 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:00:33,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:00:33,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-01 15:00:33,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:00:34,123 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-12-01 15:00:34,353 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-12-01 15:00:34,357 INFO L262 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-01 15:00:34,357 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-01 15:00:34,357 INFO L262 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-01 15:00:34,357 INFO L262 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-01 15:00:34,357 INFO L262 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-01 15:00:34,358 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,358 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,358 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,358 INFO L262 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-01 15:00:34,358 INFO L262 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-01 15:00:34,358 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-01 15:00:34,358 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-01 15:00:34,359 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-01 15:00:34,359 INFO L262 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-01 15:00:34,359 INFO L262 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-01 15:00:34,359 INFO L262 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-01 15:00:34,359 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,359 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,360 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,360 INFO L262 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-01 15:00:34,360 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-01 15:00:34,360 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-01 15:00:34,360 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-01 15:00:34,360 INFO L262 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-01 15:00:34,360 INFO L262 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-01 15:00:34,361 INFO L262 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-01 15:00:34,361 INFO L262 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-01 15:00:34,361 INFO L262 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-01 15:00:34,361 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,361 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,361 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,361 INFO L262 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-01 15:00:34,361 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-01 15:00:34,361 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-01 15:00:34,361 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-01 15:00:34,361 INFO L262 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-01 15:00:34,362 INFO L262 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-01 15:00:34,362 INFO L262 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-01 15:00:34,362 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,362 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,363 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,363 INFO L262 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-01 15:00:34,364 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-01 15:00:34,364 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-01 15:00:34,364 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-01 15:00:34,364 INFO L262 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-01 15:00:34,364 INFO L262 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-01 15:00:34,364 INFO L262 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-01 15:00:34,364 INFO L262 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-01 15:00:34,364 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,365 INFO L262 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-01 15:00:34,366 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-01 15:00:34,366 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-01 15:00:34,366 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-01 15:00:34,366 INFO L262 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-01 15:00:34,366 INFO L262 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-01 15:00:34,366 INFO L262 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-01 15:00:34,366 INFO L262 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-01 15:00:34,366 INFO L262 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-01 15:00:34,366 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,366 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,366 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,366 INFO L262 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-01 15:00:34,367 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-01 15:00:34,367 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-01 15:00:34,367 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-01 15:00:34,367 INFO L262 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-01 15:00:34,367 INFO L262 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-01 15:00:34,367 INFO L262 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-01 15:00:34,367 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:00:34,368 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,368 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,368 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,368 INFO L262 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-01 15:00:34,368 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-01 15:00:34,368 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-01 15:00:34,368 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-01 15:00:34,368 INFO L262 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-01 15:00:34,369 INFO L262 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-01 15:00:34,369 INFO L262 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-01 15:00:34,369 INFO L262 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-01 15:00:34,369 INFO L262 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-01 15:00:34,369 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,369 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,369 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,370 INFO L262 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-01 15:00:34,370 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-01 15:00:34,370 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-01 15:00:34,370 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-01 15:00:34,370 INFO L262 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-01 15:00:34,370 INFO L262 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-01 15:00:34,370 INFO L262 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-01 15:00:34,371 INFO L262 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-01 15:00:34,371 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,371 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,371 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,371 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-01 15:00:34,371 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-01 15:00:34,371 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-01 15:00:34,372 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:00:34,372 INFO L262 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-01 15:00:34,372 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 15:00:34,372 INFO L262 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-01 15:00:34,372 INFO L262 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-01 15:00:34,373 INFO L262 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-01 15:00:34,373 INFO L262 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-01 15:00:34,373 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,373 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,373 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,373 INFO L262 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-01 15:00:34,373 INFO L262 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-01 15:00:34,374 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-01 15:00:34,374 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-01 15:00:34,374 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-01 15:00:34,374 INFO L262 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-01 15:00:34,374 INFO L262 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-01 15:00:34,374 INFO L262 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-01 15:00:34,374 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,375 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,375 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,375 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-01 15:00:34,375 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-01 15:00:34,375 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-01 15:00:34,375 INFO L262 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-01 15:00:34,375 INFO L262 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-01 15:00:34,376 INFO L262 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-01 15:00:34,376 INFO L262 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-01 15:00:34,376 INFO L262 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-01 15:00:34,376 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,376 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,376 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,376 INFO L262 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-01 15:00:34,377 INFO L262 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-01 15:00:34,377 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-01 15:00:34,377 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-01 15:00:34,377 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-01 15:00:34,377 INFO L262 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-01 15:00:34,377 INFO L262 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-01 15:00:34,377 INFO L262 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-01 15:00:34,378 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,378 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,378 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,378 INFO L262 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-01 15:00:34,378 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-01 15:00:34,378 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-01 15:00:34,378 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-01 15:00:34,378 INFO L262 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-01 15:00:34,379 INFO L262 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-01 15:00:34,379 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 15:00:34,379 INFO L262 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-01 15:00:34,379 INFO L262 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-01 15:00:34,379 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,379 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,380 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,380 INFO L262 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-01 15:00:34,380 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-01 15:00:34,380 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-01 15:00:34,380 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-01 15:00:34,380 INFO L262 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-01 15:00:34,380 INFO L262 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-01 15:00:34,380 INFO L262 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-01 15:00:34,380 INFO L262 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-01 15:00:34,380 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,380 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-01 15:00:34,381 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-01 15:00:34,382 INFO L262 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-01 15:00:34,382 INFO L262 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-01 15:00:34,382 INFO L262 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-01 15:00:34,382 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,382 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,382 INFO L258 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (<= ~a15~0 5)) (.cse3 (<= (+ ~a12~0 49) 0)) (.cse2 (<= 7 ~a15~0)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse0 .cse3) (and (< 0 (+ ~a12~0 43)) (<= ~a12~0 11) .cse1) (and (<= 9 ~a21~0) .cse1 (<= ~a21~0 9)) (and (<= 8 ~a21~0) .cse1 (<= ~a12~0 80) (<= ~a21~0 8)) (and .cse3 .cse2 (<= ~a15~0 8) (<= 10 ~a21~0)) (and .cse1 (<= ~a21~0 6)))) [2020-12-01 15:00:34,382 INFO L262 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-01 15:00:34,383 INFO L262 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-01 15:00:34,383 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-01 15:00:34,383 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-01 15:00:34,383 INFO L262 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-01 15:00:34,383 INFO L262 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-01 15:00:34,383 INFO L262 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-01 15:00:34,383 INFO L262 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-01 15:00:34,384 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,384 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,384 INFO L265 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-01 15:00:34,384 INFO L262 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-01 15:00:34,384 INFO L262 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-01 15:00:34,384 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-01 15:00:34,384 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-01 15:00:34,385 INFO L262 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-01 15:00:34,385 INFO L262 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-01 15:00:34,385 INFO L262 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-01 15:00:34,385 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,385 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,385 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:00:34,385 INFO L262 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-01 15:00:34,386 INFO L262 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-01 15:00:34,386 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-01 15:00:34,386 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-01 15:00:34,386 INFO L262 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-01 15:00:34,386 INFO L262 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-01 15:00:34,386 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,386 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,387 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-01 15:00:34,387 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,387 INFO L262 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-01 15:00:34,387 INFO L258 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (<= ~a15~0 5)) (.cse3 (<= (+ ~a12~0 49) 0)) (.cse2 (<= 7 ~a15~0)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse0 .cse3) (and (< 0 (+ ~a12~0 43)) (<= ~a12~0 11) .cse1) (and (<= 9 ~a21~0) .cse1 (<= ~a21~0 9)) (and (<= 8 ~a21~0) .cse1 (<= ~a12~0 80) (<= ~a21~0 8)) (and .cse3 .cse2 (<= ~a15~0 8) (<= 10 ~a21~0)) (and .cse1 (<= ~a21~0 6)))) [2020-12-01 15:00:34,387 INFO L262 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-01 15:00:34,388 INFO L262 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-01 15:00:34,388 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-01 15:00:34,388 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-01 15:00:34,388 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-01 15:00:34,388 INFO L262 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-01 15:00:34,388 INFO L262 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-01 15:00:34,388 INFO L262 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-01 15:00:34,389 INFO L262 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-01 15:00:34,389 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,389 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,389 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:00:34,389 INFO L262 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-01 15:00:34,389 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-01 15:00:34,390 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-01 15:00:34,390 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-01 15:00:34,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:00:34 BoogieIcfgContainer [2020-12-01 15:00:34,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:00:34,412 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:00:34,412 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:00:34,413 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:00:34,413 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:00:02" (3/4) ... [2020-12-01 15:00:34,424 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:00:34,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-01 15:00:34,470 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:00:34,472 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:00:34,474 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:00:34,662 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_efe57015-afe5-4232-a9d5-027225d16ccd/bin/uautomizer/witness.graphml [2020-12-01 15:00:34,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:00:34,664 INFO L168 Benchmark]: Toolchain (without parser) took 34920.43 ms. Allocated memory was 88.1 MB in the beginning and 1.8 GB in the end (delta: 1.7 GB). Free memory was 49.6 MB in the beginning and 1.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 397.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:34,664 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory is still 67.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:00:34,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.50 ms. Allocated memory is still 88.1 MB. Free memory was 49.4 MB in the beginning and 43.1 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:34,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 142.84 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 43.1 MB in the beginning and 84.9 MB in the end (delta: -41.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:34,666 INFO L168 Benchmark]: Boogie Preprocessor took 150.93 ms. Allocated memory is still 113.2 MB. Free memory was 84.9 MB in the beginning and 79.0 MB in the end (delta: 5.9 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:34,666 INFO L168 Benchmark]: RCFGBuilder took 1910.33 ms. Allocated memory is still 113.2 MB. Free memory was 78.9 MB in the beginning and 40.0 MB in the end (delta: 38.9 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:34,667 INFO L168 Benchmark]: TraceAbstraction took 31670.73 ms. Allocated memory was 113.2 MB in the beginning and 1.8 GB in the end (delta: 1.7 GB). Free memory was 39.4 MB in the beginning and 1.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 344.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:34,667 INFO L168 Benchmark]: Witness Printer took 250.30 ms. Allocated memory is still 1.8 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:34,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory is still 67.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 781.50 ms. Allocated memory is still 88.1 MB. Free memory was 49.4 MB in the beginning and 43.1 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 142.84 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 43.1 MB in the beginning and 84.9 MB in the end (delta: -41.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 150.93 ms. Allocated memory is still 113.2 MB. Free memory was 84.9 MB in the beginning and 79.0 MB in the end (delta: 5.9 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1910.33 ms. Allocated memory is still 113.2 MB. Free memory was 78.9 MB in the beginning and 40.0 MB in the end (delta: 38.9 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 31670.73 ms. Allocated memory was 113.2 MB in the beginning and 1.8 GB in the end (delta: 1.7 GB). Free memory was 39.4 MB in the beginning and 1.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 344.7 MB. Max. memory is 16.1 GB. * Witness Printer took 250.30 ms. Allocated memory is still 1.8 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 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: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((a15 <= 5 && a24 == 1) || (7 <= a15 && a24 == 1)) || (a15 <= 5 && a12 + 49 <= 0)) || ((0 < a12 + 43 && a12 <= 11) && a24 == 1)) || ((9 <= a21 && a24 == 1) && a21 <= 9)) || (((8 <= a21 && a24 == 1) && a12 <= 80) && a21 <= 8)) || (((a12 + 49 <= 0 && 7 <= a15) && a15 <= 8) && 10 <= a21)) || (a24 == 1 && a21 <= 6) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((a15 <= 5 && a24 == 1) || (7 <= a15 && a24 == 1)) || (a15 <= 5 && a12 + 49 <= 0)) || ((0 < a12 + 43 && a12 <= 11) && a24 == 1)) || ((9 <= a21 && a24 == 1) && a21 <= 9)) || (((8 <= a21 && a24 == 1) && a12 <= 80) && a21 <= 8)) || (((a12 + 49 <= 0 && 7 <= a15) && a15 <= 8) && 10 <= a21)) || (a24 == 1 && a21 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.9s, OverallIterations: 15, TraceHistogramMax: 8, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1961 SDtfs, 2061 SDslu, 81 SDs, 0 SdLazy, 7626 SolverSat, 943 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3456 GetRequests, 3424 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4098occurred in iteration=14, 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, 15 MinimizatonAttempts, 3204 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 75 NumberOfFragments, 163 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2972 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 586 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 9961 NumberOfCodeBlocks, 9961 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 9941 ConstructedInterpolants, 0 QuantifiedInterpolants, 16077767 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4340 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 20 InterpolantComputations, 15 PerfectInterpolantSequences, 19009/20136 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...